Combo: 4pcs Tenergy 9V 600mAh Li-ion Rechargeable Batteries

Tenergy's 9V Li-Ion rechargeable battery is a safe and reusable battery, fit to replace all of your current 9V batteries. When compared to 9V Alkaline batteries, Tenergy's 9V Li-Ion battery can be charged and discharged hundreds of more times, eliminating frequent costly replacements, and greatly reduces the number of batteries and toxic chemicals disposed into the environment. The Tenergy 9V Li-Ion battery is a direct replacement for Alkaline or NiMH 9V battery and prevent battery damage and fire hazards caused by overcharging and over-discharging, so you never have to worry about battery related incidents. Save Money and the Environment The Tenergy 9v Li-Ion rechargeable battery can be charged and discharged hundreds of time, greatly reducing the number of batteries you need to replace and dispose of Direct replacement Tenergy 9V Li-ion rechargeable battery can be used as a direct replacement for 9V Alkaline or 9V NiMH battery Multiple Protection Mechanism Built-in protection mechanism will help prevent overcharging, over-discharging, and short-circuiting to prolong the life of the battery Specifications: Voltage: 7.4V Life cycle: > 300 cycle life Dimension: 17 x 28 x 49.5 (mm) Common Applications: - R/C controllers - Smoke detectors - GPS - LED lighting devices - And more