To fully charge a 12V LiFePO4 battery, a charger that supplies between 14V and 14.6V is required. Using a charger with a lower voltage will still charge the battery, but it won't achieve a full 100% capacity.

Trickle charging is inappropriate for lithium batteries. Using a trickle charger that isn’t designed for LiFePO4 batteries may result in overcharging or damage because lithium batteries have different charging needs compared to traditional lead-acid batteries.

To maximize the lifespan of a battery, it’s beneficial to avoid charging it to full capacity and prevent complete discharges. For lithium batteries, maintaining a state of charge (SoC) between 20% and 80% significantly enhances their longevity.

Specifically, Power Queen deep cycle lithium batteries demonstrate exceptional durability: they can endure over 4,000 deep cycles at a 100% Depth of Discharge (DOD), surpass 6,000 cycles at 80% DOD, and exceed 15,000 cycles at a 60% DOD.

When charging a LiFePO4 lithium-ion battery with the correct voltage settings, it is safe to leave the battery on the charger overnight. Power Queen batteries, which use LiFePO4 cells, have a nominal voltage of 12.8V and reach 14.6V when fully charged. To charge these batteries, a charger with a constant current/constant voltage (CC/CV) output between 14.4V and 14.6V is ideal, ensuring the current output does not exceed approximately 1C. By adhering to the CC/CV charging profile, maintaining the appropriate maximum voltage, and avoiding excessive current, you can achieve a safe and complete charge for your battery.

It's crucial to ensure your charger provides the appropriate current and voltage for the LiFePO4 lithium battery you're charging. For instance, using a 24V charger on a 12V LiFePO4 battery is not advisable. It's also essential to use a charger specifically designed for your battery's chemistry. Moreover, when using a standard lead-acid charger for a LiFePO4 lithium battery, make sure it lacks features like desulfation or dead battery mode, which could be harmful to the LiFePO4 battery.