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Technical Support

  • Can I connect P030A to a dual live wire group? How can I achieve 10KW?

    AC500 can be connected to P030A to form a dual live wire, but the maximum output power of P030A will be limited to 7.2KW. If you want to achieve a maximum output power of 10KW, you need to connect it separately or to a distribution box. Low pressure areas only.

  • After setting up the dual live wires, can I use the standard AC charging cable to charge two AC500s?

    No, you need to use a split-phase charging cable to charge two AC500s after assembling dual live wires. Purchase link.Low pressure areas only.

  • Is the dual live wire function only available on low voltage machines?

    Yes, only the machines in low voltage areas have dual live wire function, only in low voltage areas.

  • Can different models be paired with dual live wires, such as AC500 and AC300?

    No

  • Why should I build a dual firewire system? How to build it?

    1. The dual live wires can achieve a maximum output power of 10kW, can carry 240V equipment, and a maximum capacity of 36864Wh, meeting greater load requirements and longer battery life.
    2. Can be connected to the distribution box to form a dual live wire.
    Watch the VideoAC500 | Split Phase System Build Up

  • How to install the AC500+ B300S system for home backup?

    For details, please refer to "how to build a partial backup system with AC500+B300S'' PDF file.

  • How to use 12V/30A RV port to power the RV?

    Use the Anderson port of the RV output cable to power the RV. RV cable purchase link.

  • Can I use a 24V cigarette lighter port to power a 12V device?

    1. No, the 24V cigarette lighter port can only load 24V devices.
    2. You can use the 12V RV port of AC500 to load 12V devices, or use the 12V cigarette lighter port of B300/B300S battery pack to load, but AC500 will not display the load power.

  • How long can AC500 power my home appliances?

    Runtime = Capacity × DoD × η ÷ (load power+self-consumption power)
    Note:
    1. DoD refers to the Depth of Discharge, η is the local inverter efficiency. DoD=95%, η=90%.
    2. The above data is for reference ONLY.

  • Can a multi-socket extender/power strip be connected to the AC of the machine to power more loads?

    Yes, as long as the total load power does not exceed the maximum output power of the machine.

  • Can the L14-30 and L14-50 outlets on the AC500 output 240V?

    No, the single AC500 can only output 120V, which is limited to low voltage areas.

  • Deep discharge function

    When SOC is 0%, you can turn on DC for discharge.
    Note: This function is only used in emergency situations, because this function allows the battery to be over-discharged, which will damage the battery life.

  • Self-heating function

    The self-heating function in low temperature environment can realize the charging and discharging requirements in the use environment as low as -20℃, but the following conditions must be met:
    1. The self-heating function can only be realized when AC500 and B300S are used together.
    2. The self-heating function can only be activated when there is AC or PV input (input power>400W).

  • Hercules Mode

    AC500 can carry up to 6000W pure resistive load after turning on the Hercules mode, but two conditions must be met:
    1. The load must be a pure resistive load;
    2. It must be used off-grid.

  • ECO Mode

    Power saving mode: when this function is turned on, if the AC or DC of the machine has no load or the load power is too small, the machine will automatically turn off the AC or DC after 4 hours to reduce the machine's self-consumption and save power.

  • Can the 32A output port on the high voltage AC500 output 32A?

    The AC500's maximum AC output power is 5000W. When outputting 230V, it can only output about 21.7A at most. The 32A socket supports a maximum of 32A, but it does not mean that the machine will output 32A. However, ordinary 16A sockets cannot output more than 16A, so 32A output ports are needed.

  • Can the NEMA L14-50 outlet on the low voltage AC500 output 50A?

    The AC500's maximum AC output power is 5000W. When the US standard output is 120V, the maximum output is only about 41.7A. When the Japanese standard output is 100V, it can only output 50A. The NEMA L14-50 socket supports a maximum of 50A, but it does not mean that the machine will definitely output 50A. However, ordinary 20A sockets and 30A sockets cannot output more than 30A, so the NEMA L14-50 output port is needed.

  • What is the maximum AC output power of AC500?

    4,500W Max. with 1*B300S.
    5,000W Max. with 2*B300S or more.
    3,000W Max. with 1*B300.
    5,000W Max. with 2*B300 or more.

  • Can AC500 charge lead-acid batteries and storage batteries?

    1. If the lead-acid battery is equipped with an AC-DC adapter, the battery can be charged from the machine's AC output port.
    2. If the battery is charged directly from the machine's DC output port, it is not supported.

  • Can I charge AC500 via 12V / 24V DC / DC charger / MPPT controller / solar controller?

    Yes. However, the max charging power would be limited to 100W / 200W. And please setup the "DC input source" to "Others".

  • Can I use T200S to charge the B300S adapter input port?

    No, the maximum output voltage of T200S is 25.2V, which cannot meet the adapter input voltage requirement of B300S. You have to use T500 to charge B300S.

  • Can I connect solar panels, car charging and AC charging at the same time?

    Yes. AC500 features dual MPPT charge controllers, but please ensure the solar panels in each controller are consistent.

  • Does the machine support simultaneous charging and discharging?

    Support simultaneous charging and discharging.

  • How long does it take to fully charge the AC500?

    Charging time (estimated) = (Capacity/Charging power) + Trickle charging time.
    Trickle charging time for Bluetti power station is typically 0.5~1 hours

  • Does the B300S have a power bank mode?

    No

  • Can I connect the battery pack to PV or adapter to charge the whole system?

    The battery pack can be connected to PV or adapter to charge the entire system, but AC500 will not display the charging power of the battery pack connected alone.

  • What is the maximum charging power of AC500?

    AC maximum charging power:
    1. 3,000W Max. with 1*B300
    2. 5,000W Max. with 2*B300 or more
    2. 4,500W Max. with 1*B300S
    2. 5,000W Max. with 2*B300S
    PV maximum charging power 3000W
    AC+PV maximum charging power;
    1. 3,000W max. with 1*B300
    2. 6,000W max. with 2*B300
    3. 8,000W max. with 3*B300 or more (and the two AC500 parallel ports are connected to the battery pack separately)
    4. 4,500W max. with 1*B300S
    5. 8,000W max. with 2*B300S or more (and the two AC500 parallel ports need to be connected to the battery packs respectively)
    Note: When AC+PV input is used, PV input will be given priority

  • Can I connect different types of solar panels to the AC500?

    AC500 has two MPPTs. The solar panels on the two channels can be of different types, but the solar panels connected to each channel must be of the same type.

  • Can I charge the machine with a wind turbine?

    It is not recommended. Due to the unstable wind volume, the output voltage and frequency of the wind turbine will be unstable and cannot be stable within the input range of our machine. Directly charging our machine may be intermittent or even unable to charge.

  • Can I use rooftop solar panels to charge the AC500?

    Yes, but please note that your solar roof must meet the following conditions:
    1. Total VOC 12V~150V
    2. With MC4 connector
    3. Is there a micro inverter? The micro-inverter cannot directly charge the AC500. The AC500 can only be charged by the micro-inverter through the AC wall charger
    Note: When the VOC exceeds 150V, the BLUETTl D300S can be used to step down the voltage to achieve solar charging.

  • Can I use a third-party solar panel to charge the AC500?

    Yes, as long as the specifications of the solar panel on DC1/DC2 are within the following range:
    1) Total VOC: 12V~150V
    2) Total power: Maximum 1500W
    3) With MC4 connector

  • Can solar input power exceed 3000 watts?

    Solar input power can exceed 3000 watts, as long as the total PV VOC of each circuit does not exceed 150V.

  • Can the solar input current exceed 15A?

    The solar input current can exceed 15A. Our machine will limit the current, but exceeding it is equivalent to waste. The current can exceed, but the voltage cannot exceed.

  • How to connect solar panels?

    The best way to connect solar panels is to connect them in series, because the AC500 PV input has a wide voltage range of 12V~150V, and the maximum input current is only 15A. The series voltage increases, and the parallel current increases, so the series efficiency is higher. Be careful not to mix and connect different types of solar panels, otherwise it will affect the efficiency and damage the solar panels over time.

  • How many solar panels can be connected to the AC500?

    1.AC500Pro support dual MPPT, each MPPT of AC500 accepts 1-6* PV120 / 1-5* PV200 / 1-3* PV350 / 1-3* PV420 solar panels.

  • What should I consider when charging my AC500 from a generator?

    1. The output specifications, voltage and frequency of the generator need to be within the input range of our machine.
    2. Does the maximum output power of the generator meet the maximum AC input power of our machine? If not, our machine can lower the maximum AC input current to reduce the maximum AC input power.
    3. The output of the generator is a sine wave.

  • What is the difference between B300S and B300?

    The main differences are as follows:
    1) Maximum input and output current: B300S is 90A, while B300 is 60A.
    2) Self-heating function: B300S has it, B300 does not.
    3) PV input power: B300S is 500W, B300 is 200W.

  • What is the difference between AC500 and AC300 in meeting various needs?

    The main differences are as follows:
    1) Battery capacity: AC300 supports up to 4 B300s, with a capacity of 3072Wh~12288Wh, while AC500 supports up to 6 B300S, with a capacity of 3072Wh~18432Wh.
    2) Maximum output power: AC300's AC output power is 3000W, with a surge power of 6000W; while AC500's AC output power is 5000W, with a surge power of 10000W.
    3) Maximum charging power: AC300's AC charging power is 3000W, while AC500's AC charging power is 5000W; AC300's PV charging power is 2400W, while AC500's PV charging power is 3000W.
    4) Other functions of AC500 that AC300 does not have: lower self-power consumption. Self-heating function, Hercules mode.

  • Can the machine be laid on its side to save space?

    Not recommended, as long-term placement may cause the internal structure to loosen. It is recommended to place it upright.

  • How to maintain and store AC500?

    1. When the SOC drops to 5%, charge the product immediately.
    2. Before storing the product, charge it to 60% SOC to maintain optimal condition. In addition, power off the device and disconnect all electrical connections.
    3. Store the product in a cool and dry place, away from flammable or combustible materials and gases.
    4. The power station can be safely stored in a temperature range of -20°C to 45°C (-4°F to 113°F). However, if stored for more than one month, it is recommended to keep the ideal storage temperature around 30°C (86°F).
    5. Fully cycle the product every 3 months to maintain the health of the battery.

  • Can I charge or discharge the AC500+B300S in sub-zero temperatures?

    You can use the AC500+B300S to charge your devices in cold weather, but please avoid recharging it below freezing. The operating temperature for AC500+B300S is:
    Charging: -20~40℃ / -4~104℉
    Discharging: -20~40℃ / -4~104℉

  • Does AC500 support APP connection?

    Support Bluetooth and WiFi connection APP.

  • What is the UPS mode switching time?

    Within 20ms.

  • Can AC500 be purchased and used separately?

    No, the AC500 does not have a battery inside and needs to be used with the B300S battery pack.

  • How to use the battery extension cable? For AC500 to B300S and AC500 to B300.

    P150D is used to connect AC500+B300S, included in the B300S battery pack. P150D to P090D is used to connect AC500+B300, need to be purchased separately.
    BLUETTI B300 | How to connect the B300/B300S to AC500 P150D to P090D | Expansion Cable Introduction

  • Can I use other brands of batteries?

    No, AC500 is only compatible with B300 or B300S.

  • What functions does the AC500 display have?

    BLUETTI AC500 | Menu&Settings

  • What are the basic functions and standard accessories of AC500?

    官网 BLUETTI AC500 | Unboxing & First use

  • Why isn’t the AC500 displaying the charging power when the input source is charging the B300S?

    When the input source is solely connected to the B300, the AC500 won't show the battery pack's input power.

  • Why can’t I set the input current?

    You can't adjust the input current when the Silent Charing mode is enabled.

  • Why do devices work with the 20A AC and the TT-30R outlets but not with the L14-30R and NEMA 14-50R outlets?

    • If both 20A and TT-30R outlets handle loads, the unit operates normally. Use a multimeter to identify which outlet has voltage on the live wire, either L14-30R or NEMA 14-50R.
    • When using an adapter to connect L14-30R and NEMA 14-50R outlets, ensure the adapter's live wire connects to the outlet's live wire with voltage.
  • Why does error code 012 occasionally appear when the unit is charging and discharging simultaneously in UPS mode?

    • Upgrade the firmware to the latest version using the app.
    • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
  • Why is there a significant difference in State of Charge (SoC) and output power between two AC500 units when configured in split phase?

    • Check if both units have the same input currents.
    • Reset the AC output voltage of both units to match.
    • Reset the UPS mode on both units to be identical.
    • Check that the 120V devices connected to both units are evenly distributed. When using two units, they power 240V devices together but handle 120V devices separately.
  • Why can’t the B300S power on?

    • Disconnect the B300S from the AC500, and charge it separately with the adapter or solar panels to check if it activates.
    • If it's cold outside, place the unit in a warm area for 3 hours before turning it on.
  • Why can’t the battery expansion cable plug into the B300/B300S battery pack?

    • Double-check the battery pack model are B300 or B300S?
    • When connecting to the B300S, use the P150D to P150D cable.
    • When connecting to the B300, use the P150D to P090D cable with black locks, not blue ones. Connect the 150A connector to the AC500 and the 90A connector to the B300.

    Tap the link below to check how to connect the B300/B300S to AC500.

  • Why won’t the AC500 turn on? Even though its power button doesn’t light up, pressing it activates the B300S instead.

    • Ensure both ends of all connection cables are securely locked in place.
    • Try using different expansion ports for the AC500 and expansion batteries, as each unit has two ports.
    • Try new expansion cables.
  • Why can’t the AC500 power on?

    • Ensure both ends of all connection cables are securely locked in place.
    • Check if all battery packs are functioning normally, and if their power button indicators flash.
    • Try using different expansion ports for the AC500 and expansion batteries, as each unit has two ports.
    • Try new expansion cables.
  • How to check the system’s error code?

    To check the error code, you have three options:

    ● Tap "Alarm" at the bottom left corner of the touchscreen.
    ● Tap "Data > Alarm History".
    ● Tap in the upper right corner of the app's operation status page.

  • Why does the unit shut down automatically?

    • Check if the unit is recharging, powering a load, or in ECO mode.
    • If not recharging and both AC and DC outputs are off, the unit shuts down after a period of inactivity.
    • With ECO mode on and a low or no load, the unit turns off the AC and DC outputs after 4 hours and then shuts down later.
    • If charging only with solar panels and neither AC nor DC is activated, the unit stops charging and shuts down at night and restarts with morning sunlight.
    • The unit will shut down if it runs out of power.
    • Check for any error codes in Data > Alarm History.
  • Why can’t I turn on the AC and DC on the screen, only via the app? How to fix the screen when it’s upside-down or left-right inverted?

    • Upgrade the firmware to the latest version using the app.
    • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
    1. Why am I unable to connect the unit via WiFi, or why is the connection unstable?

      • Upgrade the app and the firmware to the latest version.
      • Toggle the Bluetooth and WiFi off and on again on both your phone and the touchscreen. Also, enable the location service (e.g. GPS) on your phone.
      • Make sure your WiFi operates at a 2.4GHz band.
      • Double-check your WiFi password is accurate. The WiFi connection won't work with the wrong password, even if the app says "WiFi saved".
      • Try to avoid using special characters as much as possible.
      • Keep the unit close to the router or other WiFi signal sources.
      • Ensure your phone has a strong signal.
      • Restart the app.
      • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
    2. Why can’t I switch the UPS modes and set presets?

      • Upgrade the app and the firmware to the latest version.
      • Reset the unit to factory settings on the last page of the Settings.
    3. Why are the MC4 connectors of the same polarity different on the solar charging cable and the solar panel?

      MC4 connectors of the same polarity include both male and female connectors to ensure a proper connection.

    4. Unit’s Error Code: 103

      • Ensure both ends of all connection cables are securely locked in place.
      • If you have multiple battery packs, connect only one to the AC300 and try to identify which one causes the 103 error.
      • Try using different expansion ports for the AC300 and expansion batteries, as each unit has two ports.
      • Try using new expansion cables to see if the unit starts up, to identify if the issue lies with the current expansion cable.
      • Charge the battery pack separately to check for any issues.
    5. Unit’s Error Code: 004/015/098 App’s Error Code: A003/A007

      • Upgrade the BMS to the latest version using the app.
      • Perform a State of Charge (SoC) recalibration by discharging the battery to 0% and then charging it using both AC and DC without any loads connected.
      • If you have multiple expansion batteries, access BMS info to identify which one is causing the error code.
      • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
    6. Unit’s Error Code: 005/006/009/010/022/027/029

      • Upgrade the firmware to the latest version using the app.
      • Disconnect all loads and restart the unit.
    7. Unit’s Error Code: 024/061/062/063/064 App’s Error Code: A024

      • For using a single AC300 unit, set the "Machine Type" to "Single Phase" on the touchscreen.
      • For using two AC300 units, connect them with the communication cable. Turn off both AC300 AC output. Set the "Machine Type" of both units to "Split Phase", designating one as "Master" and the other as "Slave".
      • Connect the communication cables correctly and twist the connector to lock. Then, clear the error codes.
      • Restart both units.
    8. Unit’s Error Code: 051/052 App’s Error Code: A062/A063

      • Upgrade the firmware to the latest version using the app.
      • Ensure the total open-circuit voltage of the solar panel is within the range of 12V~150V.
      • Tap the PV icon on the Home page to check for any DC input voltage issues.
      • The AC300 comes with dual MPPT channels. Connect some solar panels to the other channel if the total open-circuit voltage exceeds 150V.
      • If two channels are full, consider adding a D300S PV voltage step down module, or connect extra solar panel directly to the expansion battery's DC input port. Ensure the solar panel meets requirements: 12V~72V Voc, 200 Max. (for B300); 12V~60V Voc, 500 Max. (for B300S).
        Note: When connecting the solar panel directly to the battery pack, it can power the entire AC300 system, but the AC300 won't display the solar charging power of expansion batteries.
    9. Unit’s Error Code: 023/055/056 App’s Error Code: A001

      • Ensure that the total power of all devices doesn't exceed the unit's rated power.
      • Inductive loads like refrigerators and pumps may require more initial power to start, triggering alerts if it exceeds the unit's surge power. Connect resistive loads of 2,000W~3,000W to check if the issue persists.
      • Reduce or disconnect all loads, then turn on the AC to check for alerts.
      • Charge the unit using AC power and check if it can handle the load when the grid is bypassed under UPS mode. If it works when connected to the grid but not when disconnected, it means that the unit can't handle the load.
    10. Unit’s Error Code: 057/058/059/060 App’s Error Code: A081/A082/A083/A084

      • Adjust the AC output voltage and frequency to match your local grid standards.
      • Upgrade all firmware to the latest version using the app.
      • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.

    11. Unit’s Error Code: 054/099

      Charge the unit promptly.

    12. Unit’s Error Code: 065

      • Check if the "PV Parallel Enable" on the screen is set to OFF.
      • Only enable it when using solar panels with a total power exceeding 1200W and an open-circuit voltage below 150V, which should be divided into two MPPT channels.
    13. Unit’s Error Code: 086-096 (DC output related issues)

      • Upgrade the firmware to the latest version using the app.
      • Remove all loads and restart the unit. If it operates normally without any load or with different loads, the issue may be due to high-power or inductive loads connected to the DC outputs, DC output is overloaded and can't carry these appliances. It's recommended to use the AC outlets for these appliances.
    14. Unit’s Error Code: 097

      • Keep the unit within the temperature range of 32°F to 104°F (0°C to 40°C) when charging and -4°F to 104°F (-20°C to 40°C) when discharging.
      • If connected to multiple expansion batteries, go to the Battery Information page and check the specific malfunctioning battery.
      • Power off the battery, move it to a cooler area for 3 hours, then restart.
      • If it's too cold, move the unit to a warmer area for 3 hours. Or, run the load to raise the internal temperature before recharging.
    15. Unit’s Error Code: 107

      • Keep the unit within the temperature range of 32°F to 104°F (0°C to 40°C) when charging and -4°F to 104°F (-20°C to 40°C) when discharging.
      • Power off the unit, move it to a cooler area for 3 hours, then restart.
      • If it's too cold, move the unit to a warmer area for 3 hours. Or, run the load to raise the internal temperature before recharging.
    16. Unit’s Error Code: 007/108

      • Upgrade the firmware to the latest version using the app.
      • Restart the unit.
      • Check if the fan is obstructed.
    17. Why can’t I charge the unit from AC sources like wall outlets, generators, or inverters?

      • Upgrade the firmware to the latest version using the app.
      • If the "Grid" icon isn't yellow and the AC input voltage is 0V, make sure the AC charging cable is securely connected to both the unit and the wall outlet. Ensure the connector is twisted in place or try a different wall outlet.
      • Keep the unit within the temperature range of 32°F to 104°F (0°C to 40°C).
      • Switch to the standard UPS mode, other UPS modes will not charge AC under some operating conditions.
      • Check for any error codes.
      • Set the AC output voltage and frequency correctly. Go to the AC Input page and check if the input voltage and frequency fall within the unit's specifications.
      • Lower the Max. grid input current settings for the AC300 on the screen.
      • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
    18. Why isn’t the unit able to draw power from the solar panels?

      • Upgrade the firmware to the latest version using the app.
      • Set the "DC 1/2 Input Source" to "PV" for solar charging.
      • Check for any error codes.
      • Check if the total open-circuit voltage of the solar panels is within the range of 12V~150V.
      • Tap the PV icon to check for any DC input voltage issues under good sunlight conditions.
      • If PV input voltage is low, there might be a solar panel or DC input cable issue; contact BLUETTI support.
      • Use the other set MC4 connectors on the DC input cable to connect to the solar panel.
      • Charge with a car. If it works, the issue is with the solar panel. If so, please contact us.
    19. Why is the solar input power too low?

      • Upgrade the firmware to the latest version using the app.
      • Before charging, set the DC Input Source to PV.
      • Solar input power typically exceeds 70% of the maximum input, with optimal efficiency between 70% and 80%. However, solar intensity varies depending on location.
      • Connect solar panels in series for optimal performance. Connecting them in parallel may waste energy due to the 12A current limit.
      • If connected to a solar panel with an open-circuit voltage below 30V, the unit has a current limit of 8A.
      • Tilt the solar panels to directly face the sun.
      • Keep the panels clear of shade to maintain efficiency and prevent damage.
      • Clean the solar panel surface with a dry and soft cloth.
      • Tap the PV icon to check for any DC input voltage issues under good sunlight conditions.
      • Use the same type of solar panels to maintain efficiency and prevent damage.
      • It's normal when nearly fully charged, as the unit switches to trickle charging to prevent overcharging, thereby limiting the charging power.
      • Watch out for high internal temperature, as it limits the charging power.
      • If it's too cold outside, check the ambient temperature. Low internal temperatures will limit charging power. Connect loads to the unit to raise the internal temperature and increase the input power.
      • Portable solar panels are designed for temporary use and not suitable for permanent outdoor or rooftop installations. Prolonged exposure to rain can reduce their efficiency and lifespan.
    20. Why does the PV input power drop significantly when powering heavy loads and recover when the load is removed?

      • Upgrade the firmware to the latest version using the app.
      • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
      • Why can’t I charge the unit using the car? Why is the charging unstable?

        • Choose "Others" for car charging in "DC 1/2 Input Source" settings.
        • Check for any error codes.
        • Tap the PV icon to check for any DC input voltage issues.
        • Charge the unit using solar panels to check if the issue lies with the car battery or the car charging cable.
        • Use the other set of MC4 connectors on the DC input cable.
        • If neither method works, inspect the DC input cable for issues and reach out to BLUETTI support.
      • Why is the AC input power too low?

        • Check if the Grid Max. Input Current setting is too low.
        • Check if the Silent Charging Mode is enabled — it can reduce charging power.
        • When the charging power is low, assess the work situation, State of Charge (SoC), and the battery's internal temperature. Factors like battery voltage, SoC, and temperature can affect charging power. Extreme levels may trigger the unit to limit power for battery protection.
        • It's normal when nearly fully charged, as the unit switches to trickle charging to prevent overcharging, thereby limiting the charging power.
        • If the battery SOC is very low, charging power may decrease temporarily.
        • If the internal temperature is too high, shut down the unit, and let it rest for 3 hours before recharging.
        • If it's too cold outside, check the ambient temperature. Low internal temperatures will limit charging power. Connect loads to the unit to raise the internal temperature and increase the input power.
      • Why am I unable to charge the unit when connected to the D300S?

        • Ensure the total open-circuit voltage falls between 120V and 500V; otherwise, the D300S cannot be activated due to low input voltage.
        • Set "DC 1/2 Input Source" to "Others" and turn off "PV Parallel Enable".
        • Ensure the D300S is switched on.
        • Connect the solar panels directly to the AC300 and set "DC 1/2 Input Source" to "PV" to test solar charging.
      • Why does the meter connected to the AC outlet show less power than the unit’s screen?

        The units shows apparent power, including both active and reactive power, while the meter displays active power only.

      • Why isn’t the unit showing AC output power for the low-power appliance?

        This is normal. Use a high-power appliance instead to confirm if the unit is operating normally.

      • Why can’t the unit charge the RV or EV?

        Some RVs and EVs require the charging equipment to be grounded, but the AC300 is floating-grounded when off-grid.

        • Ground the unit. Contact BLUETTI support for further assistance.
      • What causes fast battery drainage? Why does the battery level significantly change during charging or use? Why are the battery SoC readings abnormal?

        • Assess the discharging time first, taking the depth of discharge (DoD), discharge efficiency (η), and the unit's self-consumption power into account.
          Discharging Time (estimated) = Battery Capacity × DoD × η ÷ (load power+self-consumption power)
          Both the DoD and η are 90%.
        • Upgrade the BMS to the latest version using the app.
        • Perform a State of Charge (SoC) recalibration by discharging the battery to 0% and then fully charging it without any loads connected.
        • It's recommended to turn off both AC and DC when there's no device connected.
        • When connecting multiple expansion batteries, connect only one to the AC300 and try to identify which one has failed.
        • If the cell temperature is between -4°F to 32°F (-20°C to 0°C), the battery's discharge capacity decreases significantly.
        • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
      • Why can’I switch the AC output voltage or frequency?

        You cannot change the AC output voltage and frequency while the AC output is turned on.

      • Why isn’t the wireless charging pad working?

        • Ensure the DC output is activated.
        • Charge again using the other wireless charging pad.
        • Remove the phone case before charging.
        • Place the phone in the center of the charging pad.
        • Check the phone's temperature. If it's overheated, allow it to cool down first.
        • Check if the DC output is working properly.
        • Try using a different brand of phone to determine if the issue is with the phone's compatibility with the charging pad.
      • Why isn’t the split-phase system charging from the generator?

        • Upgrade the firmware to the latest version using the app.
        • If the "Grid" icon isn't yellow and the AC input voltage is 0V, make sure the AC charging cable is securely connected to both the unit and the wall outlet. Ensure the connector is twisted in place or try a different wall outlet.
        • Set the AC output voltage and frequency correctly. Go to the AC Input page and check if the input voltage and frequency fall within the unit's specifications.
        • Switch to the standard UPS mode, other UPS modes will not charge AC under some operating conditions.
        • Check for any error codes.
        • Test if a single AC300 unit charges from the generator.
        • Lower the Max. grid input current settings for the AC300 on the screen.
        • If your issue persists, please contact BLUETTI Customer Service and provide your device SN and firmware version. You can find the SN and the firmware information on the Product info. page.
      • Unit’s Error Code: 024/064

        • Check if these error codes appear during split-phase charging.
        • If so, use the split-phase AC charging cable for charging instead of two standard AC charging cables.
      • Why is the power button flashing?

        • Restart the pack.
        • Check if the B300 can power on and connect to the app when connected to the AC300. If yes, upgrade the BMS to the latest version.
        • Turn on the B300 separately from the AC300. If the power button doesn't flash and it operates normally, the issue may be with the AC300.
        • If the power button is flashing due to temperature rise, power off the B300 and let it cool down for 3 hours. If it's too cold outside, move the battery to a warmer area for 3 hours. Or, charge the battery or run the load to raise the internal temperature before recharging.
        • Perform a State of Charge (SoC) recalibration by discharging the battery to 0% and then fully charging it without any loads connected if it can discharge when fully charged.
        • If the battery is dead, charge it with an adapter or 100W solar panels for a while before restarting.
        • If possible, note the number of flashes before shutdown and contact BLUETTI support.
      • Why isn’t the unit generating AC output?

        • Ensure the AC output is activated.                                    
        • Press both the AC and DC power buttons simultaneously to access Settings, then press the AC power button to switch the appropriate AC frequency.
        • Keep the unit within the temperature range of -4°F to 104°F (-20°C to 40°C).   
        • Check for alerts shown on the LCD display.
        • Press the AC power button and LED lamp button simultaneously to check for any error codes.
        • Test AC outlet voltage with a multimeter.
        • Try powering other loads if no issues are found.
      • Why isn’t the unit generating DC output?

        • Ensure the DC output is activated.                                              
        • Keep the unit within the temperature range of -4°F to 104°F (-20°C to 40°C). 3. Check for any error codes.
        • Use a multimeter to check the DC output voltage.
        • Try powering other loads if no issues are found.

        Diagnose the Problem*(Please select at least one of the following):

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