Batteries

The Best 9V Rechargeable Batteries

The Details Low-self discharge 9v Ni-MH batteries have become available in the last few years. The “low-self discharge” label means these batteries will hold their charge for a year, unlike previous NiMH batteries. This makes this 9V battery much more compelling, because 9V batteries are often used in applications like fire alarms, where the battery must …

The Best 9V Rechargeable Batteries Read More »

The Longest Lasting Rechargeable AA Batteries

For powering high-drain electronics such as digital cameras, the most efficient batteries to use are Nickel Metal Hydride (NiMH) cells. Higher capacity batteries store more charge and they can power your devices longer. The highest capacity rechargeable AA batteries are: Ansmann’s 2850 mAh batteries and Powerex’s 2700 mAh batteries. Of these two batteries, Powerex’s 2700 mAh gets the most positive …

The Longest Lasting Rechargeable AA Batteries Read More »

A Review Of NiZn Batteries

NiZn (Nickel-Zinc) batteries are a type of rechargeable AA battery that operates with a nominal voltage 1.6 volts, which is very close to the 1.5 volts of alkaline batteries. This makes NiZn battery perform well in high-drain devices like handheld games.