What is the float and boost charger?

A float charger is a type of battery charger that maintains a battery at a full charge by applying a low, constant voltage to keep it topped up without overcharging. In contrast, a boost charger provides a higher voltage to quickly charge a depleted battery, typically used for charging lead-acid batteries. The boost phase delivers a bulk charge to restore the battery's capacity, after which the charger switches to float mode to maintain the charge. Together, these chargers help ensure the longevity and reliability of battery systems.