We recommend using a 14.6V lithium iron phosphate (LiFePO4) battery charger to achieve maximum capacity.

1. Recommended Charging Voltage: 14.2V ~ 14.6V

2. Recommended Charging Current:

①20A (0.2C): The battery will reach 100% capacity in approximately 5 hours.

②50A (0.5C): The battery will reach around 97% capacity in approximately 2 hours.

Attention:

1. Connect the charger to the battery before plugging it into the power supply to prevent sparks.

2. Disconnect the charger from the battery once it is fully charged.

Yes, you can charge Power Queen batteries using an alternator or generator. If your alternator or generator provides DC output, you'll need a DC-to-DC charger to connect the battery. If it supports AC output, you can use a 14.6V lithium iron phosphate (LiFePO4) battery charger to achieve maximum capacity.

Yes, LiFePO4 is inherently safe and recognized as the most stable lithium battery chemistry available. Power Queen lithium cells are UL certified, ensuring they meet the highest safety and sustainability standards. Every Power Queen LiFePO4 battery features an internal Battery Management System (BMS) that safeguards against under-voltage during discharge, over-voltage during charging, over-current during discharge, over-temperature during both charging and discharging, and short circuits, thereby protecting the battery cells from potential damage. Additionally, Power Queen LiFePO4 lithium batteries have been rigorously tested to ensure they are free from risks of fire and electric shock, even in harsh environments.

No, Power Queen LiFePO4 lithium batteries are designed solely for energy storage and are not intended for starting devices. Please refrain from using them for this purpose.

To learn more, refer to the article "Deep Cycle vs. Starting Batteries."

It is recommended to store Power Queen LiFePO4 batteries at a 50% state of charge (SOC). If storing them for extended periods, ensure to cycle the batteries at least once every six months. Recommended storage environment: 10℃～35℃ (50℉～95℉），45%RH～75％RH.