★Package: 1*Li-ion battery + instruction manual, color: black
★Battery type: rechargeable lithium ion, U=: 22.2V, capacity: 3000mAh
★Patented battery balancing technology, built-in overcharge, overvoltage, short circuit protection, CE and UL certification
★Advanced lithium-ion technology provides higher energy density, no memory effect, low self-discharge rate (1% per month)
★Please fully charge the battery before the first use, and please charge it after long-term storage, because NiCd/NiMH and Li-ion batteries will self-discharge during storage.