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Today, the best rechargeable batteries are the new hybrid Nickel-Metal Hydride (Ni-MH) cells. These hybrid batteries have a lot going for them: they come fully charged (like alkaline batteries), and they can hold their charge over may months (unlike regular Ni-MH rechargeables). Because they can hold their charge for so long, they are suitable for low-drain devices like remote controls and flashlights. But they are also ideal for use in high-drain electronic devices like digital cameras.
http://www.metaefficient.com/rechargeable-batteries/best-rechargeable-batteries-battery-chargers.html (http://www.metaefficient.com/rechargeable-batteries/best-rechargeable-batteries-battery-chargers.html)