Nice Value Rechargeable Ni-Cd Batteries:These NiCd batteries are high performance rechargeable batteries. The standard voltage of 1.2V is perfect for a wide range of small and medium sized electronic devices, and 2200 mAh is used to meet the equipment's power needs over long periods of time. There are soldering tags on both ends of the battery, which are ready to rebuild the battery pack. You just need to replace the old battery pack to get the electronics to work again as if they were new. We also care about the environment The minimum times of charges is 500 times to save raw material resources, and you don't have to buy new batteries as often - saving money. Please note: Make sure the battery of the electronic device is 4/5 Sub C rated before purchase.