Power various electronic devices with this ready-to-use 9V Precharged Rechargeable NiMH Battery from Powerex. It is capable of outperforming a standard 9V battery because it features a slightly higher 9.6V of output power. Thanks to its very low self-discharge rate, the unit will retain up to 85% of its 230mAh capacity after 1 year in storage. Additionally, it can be recharged hundreds of times. The NiMH cell is compatible with Powerex's MH-C1090F 10-Bank Charger and MH-C490F Stealth Charger.