GP ReCyko battery 200mAh 9V (1 battery pack). A NiMH rechargeable 9V battery with eco-friendly properties, putting less stress on the environment and your wallet. With a cycle life of up to 1,000 times, this battery can lower single-use battery usage enormously. Pre-charged and is ready to use, it can stay charged up to 80% after 12 months thanks to the low self-discharge rate. Reliable performance even in extreme environment and operating temperature ranging from -20 °C to +50 °C.