The IN2102000 18V smart battery charger for lithium ion battery extends battery life and optimizes battery performance. The battery charger 18V will accept a wide 85 to 265Vac input and has nominal 18V outputs for use with 5S lithium packs. Featuring pre-charging, the smart li-ion battery pack charger is able to auto distinguish bad battery and indicate malfunction, activate over-discharged cells. The smart lithium battery chargers automatically stop when battery pack is fully charged. Like our other lithium charger models, it is safety certified and comes with excellent EMI performance.