![]() You don't want to risk a battery leaking in your device Long shelf-life (i.e., want the battery to hold a charge after months of non-use) You're worried that excess voltage could fry your device You want the brightest light from your flashlights or headlamps Use is for low-drain devices (clocks, remote controls, blinky lights) You want more than 50 deep-discharge cycles (i.e., you fully use up the battery before charging) (These 2 are okay, but since cameras go through batteries fast, you're better off with a rechargeable battery that you can reuse.) Use is for Digital Camera or other high-drain device Good only for low-drain devices like clocks and remote controls. Great in smoke alarms,lasts up to 7 years.Ĭheapest & least powerful. Powerful, but can't be charged, and small risk of explosion. If you've got a high-drain device, a rechargeable is probably better, so you don't have to keep buying batteries. ![]() But capacity drops each cycle, and prone to leaking.Ĭheap, widely available, but usually can't be recharged, and can leak. Longest shelf life of any chargeable, so it's good when batteries aren't replaced often, e.g. digital cameras), but the high voltage could burn out lights & fry electronics. Good for devices which can use extra voltage (e.g. Good for most uses, including needing long shelf life. Good for most uses, except where you need long shelf-life. Your guide to types of household batteries (AAA, AA, C, D, and 9V sizes) Which kind of battery is best for which purpose?
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