The Gsyuasa Enitime pre-charged Ni-MH rechargeable AA batteries adopt universal standards most of them suitable for cameras toys and many other electronic devices. Except that it features extensively long working life and high efficiency great for use. And it is compact and rechargeable so you can carry it anywhere anytime convenient to use. The battery is really durable and reliable. - 1.2V 2000mAh capacity - Can be recharged 1000 times - Pre-charged usable right out of the package - Japanese Nickel Metal Hydride (Ni-MH) rechargeable battery technology - Low self discharge rate -- can be recharged and stored for a long period of time - Elegant packaging and battery design