We recommend using these three methods when charging lithium batteries, depending on your situation: 1. Using a power outlet and a compatible AC to DC battery charger. 2. Using solar panels and a compatible MPPT charge controller. 3. Using your car’s or RV’s alternator and a compatible DC to DC onboard battery charger.

But, in short, you can use a normal SLA charger (without the de-sulfate mode) to charge a lithium battery. Power Sonic does recommend charging batteries with a charger suitable for their chemistry. We also recommend checking all lithium batteries for low voltage every 3-4 months and charging as needed.