Besides my SUV, I’ve used trickle chargers on 12-volt lead-acid car and deep-cycle golf cart batteries. They also can be used on 12-volt lithium-ion, absorbent glass mat (AGM) and gel-cell batteries.
They are more expensive than lead acid batteries, a type of rechargeable battery that accounts for almost 60% of all batteries sold worldwide. Battery chargers for lithium batteries ... slightly ...