The number of portable, high-tech gadgets that run on batteries has increased dramatically over the past few years. In response to all these power-hungry devices, battery manufacturers have come up with a number of high-capacity options to keep your gadgets going.
The most popular are:
- Rechargeable nickel metal hydride batteries: Clearly the cheapest if you use a lot of batteries. Manufacturers claim that some can be recharged up to 1000 times, but while this may be true, we found in the past that for some models, how long the charge lasts decreases with use. To make the most of rechargeable batteries you need to make sure you use a charger designed for the type and capacity of battery you’re using.
- Lithium batteries: These last the longest in high- drain devices like digital cameras and DVD players. If you want to use rechargeables but keep lithiums for emergencies, they should last OK, manufacturers say they have a shelf-life of around 10 years.
- Other options: Other kinds of battery are marketed as being designed for devices such as digital cameras. The most common of these is high-capacity or premium alkalines. They’re cheaper to buy than lithiums but don’t last as long.
- Rechargeable batteries are the most economical option if you frequently use appliances that consume a lot of power, such as a digital camera.
- Lithium batteries lasted the longest in our test and are a good option if you’ll be in a situation where you can’t recharge.
- DICK SMITH ELECTRONICS
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