Maha Powerex Precharged AA 2600 mAh batteries, 4pack with case

A new technology breakthrough – MAHA’s next generation of NiMH battery technology
Unlike traditional NiMH batteries, Precharged batteries can be stored for an extended period of time without substantial loss of power, and are ready to use out-of-package. As the name suggests, the Powerex Precharged batteries will be ready immediately

A common problem with rechargeable batteries is that they need to be recharged about once every three months, even if they are not used. Maha tackled this issue by developing advanced electrode materials to reduce the rate of power loss during storage. As a result, the Precharged batteries retain up to 85% of its charge even after one year of storage (at a room temperature of 20 deg C).

Never reach for your camera again, only to find the batteries have gone flat since you last used the camera.
Low internal resistance makes them ideal for use in hiigh power devices such as speedlight camera flashes.
Low discharge rate also makes them ideal for lower drainage devices such as wireless flash triggers, where the discharge rate makes normal NiMH batteries inappropriate
Can be recharged up to 1000 times
Precharged batteries can be charged in any Maha Powerex battery charger or any other NiMH battery charger
2600 mAh capacity has been tested as the highest capacity low discharge battery on the market. These really are the best of both worlds, offering great capacity and a low self discharge rate. For once you can have you cake and eat it too!