LithiumHub chargers are smart chargers that work with our lithium-ion batteries. The chargers provide a constant current and voltage and stop charging once it reaches 14 volts. It’s designed to maximize the life of your lithium battery.12V LiFePO 4A charger works with any of our batteries up to 30 Ah and will work with lead-acid as well.For safety reasons, the charger times out and stops charging after 72 hours of continuous use. This is indicated by blinking red LEDs. To activate the charger again, simply disconnect and reconnect the power cable.