Digital cameras, some toys, handheld game systems, and other devices that draw bursts of power or are used often.

Digital cameras and other high-draw devices if you don’t want to always use rechargeables.

CD players, remote controls, flashlights, and other gear with a low or medium power draw.

Rechargeable nickel metal hydride (NiMH)

Disposable lithium

Disposable alkaline

Reaction between nickel hydroxide and a metal alloy is chemically stable and thus suitable for recharging.

Lithium creates high energy density, so batteries are the lightest and longest lasting.

Based on reaction between zinc and manganese dioxide. Cheap, with a good shelf life.

Recharger adds to cost, though still the best value. Cells discharge when not in use, so not good for gear that sits idle. Must charge battery before first use.

Higher priced than other disposables, though a better value than most; few choices among brands.

If you use lots of batteries, these can be more costly in the long run.

Don’t mix rechargeable and disposable batteries; use a suitable recharger.

Have these on hand as backup even if you use rechargeables.

Buy by cheapest highly rated cells; store-brand batteries are fine.