D rechargeable batteries in Rechargeable Batteries(78)

How long do rechargeable batteries last?

Rechargeable batteries can last up to five years under the right conditions. Store them in a cool, dry place that doesn’t have temperature fluctuations when you’re not using them. Use rubber bands or zip ties to keep the batteries sorted so the ends don’t touch while in storage to prevent battery damage.

How often do you have to recharge rechargeable batteries?

You’ll want to recharge your rechargeable batteries when they have about 25 percent of their charge cycle left. The exact length of time it takes to reach this point will vary depending on the device you’re using them in and how often you use it. Some devices draw more power than others. Keep in mind that you may need to recharge batteries that have been in storage, as they do self-discharge even when not in use.

Do you need special equipment to recharge batteries?

You need a battery charger designed for your battery’s chemistry, either the one that came with them when you bought them or a similar charger recommended by the manufacturer. If you mix chargers and batteries, you can damage the batteries. Make sure the charger has the capacity to hold the number of batteries you plan to charge at a given time and note the charge time—how long it will take to completely charge the batteries without overcharging them.