A Lithium-ion or Li-ion battery is a is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy.
Lithium-ion is a low maintenance battery, which are commonly used for energy storage system off-grid and hybrid battery system.
For home use lithium battery most popular model are 48V 51.2V, main capacity 5kwh or 10kwh for each single module.