-High Energy density : Higher capacity is possible
-Relatively low self-discharge : self-discharge is less than half that of NiCd, NiMH and Lead-acid
-Low Maintenance: no periodic discharge is needed; no memory effect
-Lightweight compared to NiCd,NiMH and Lead-acid.
-Requires protection circuit: protection circuit limits voltage and current. Battery is safe if not provoked.
-Subject to aging, even if not in use : storing the battery in a cool place and at 40 percent state-of-charge reduces the aging effect.
-Shipment is needed to do special packaging and handling as dangerous goods for air and ocean shipment.