No, Power Queen LiFePO4 lithium batteries are designed for energy storage and should not be used as starting batteries. Please avoid using them to start any devices.

For more information, read about the differences between Deep Cycle and Starting Batteries.

Yes, you can charge Power Queen LiFePO4 lithium batteries with solar panels. Here are 3 ways to charge the battery.

1. Using Solar Panels

The Power Queen 12V 200Ah battery can be fully charged by in one day (with effective sunshine 4.5hrs/day) by 800W solar panels. It may take more than one day to fully charge the battery by ≥800W solar panels since the duration and intensity of light would be a great factor for their charging efficiency.

2. Generator/Alternator

If the alternator or generator supports DC output, a DC-to-DC charger is needed to connect the battery to the generator; if your alternator or generator supports AC output, please add a suitable battery charger to connect the battery and the generator according to our recommendations.

The Recommended Charging Voltage: 14.2V - 14.6V.

The Recommended Charging Current: ① 40A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity; ② 100A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity.

3. LiFePO4 Smart Chargers

To charge 12V battery, it is recommended to use 14.6V battery charger. The Recommended Charging Voltage: 14.2V - 14.6V.

The Recommended Charging Current: ① 40A (0.2C): the battery will be fully charged in around 5 hrs to 100% capacity; ② 100A (0.5C): the battery will be fully charged in around 2 hrs to around 97% capacity. Related reading: Can I Charge LiFePO4 batteries with a Normal Charger?

LiFePO4 batteries can be safely charged within a temperature range of 32°F to 113°F (0°C to 45°C). Power Queen 12V 200Ah LiFePO4 batteries feature low-temperature charging protection, which automatically stops charging when the cell temperature drops below 32°F. This safeguard prevents damage to the battery cells when charging in freezing conditions.

The length of time a 12V 200Ah battery will last depends on the amount of current drawn from it and the specific use. You can estimate this by using the following formula:

Battery life (in hours) = Battery capacity (in amp-hours) / Load current (in amperes)

For example, if we assume a load current of 10 amperes:

Battery life = 200Ah / 10A = 20 hours

This implies that under a 10-ampere load, you should anticipate around 20 hours of uninterrupted operation. Nevertheless, the precise duration may fluctuate due to variables such as system efficiency, variations in load current, and the general state of the battery.

It is recommended to store LiFePO4 lithium batteries at 50% state of charge (SOC). If the batteries are stored for long periods, cycle the batteries at least every 6 months. Recommended storage environment: 10℃～35℃ (50℉～95℉), 45%RH～75％RH.