UltraPower UP100AC QUAD Balancing Charger for LiPo, LiIon, LiFe, NiCd, NiMH, Lead Acid battery packs. Terminal voltage control in 4. 18v to 4. 30v. Delta-peak sensitivity (nimh/nicd). Individual cell balancing charge & discharge. Battery meter function. One button control factory setting,data storage (store up to 10 packs in memory).