Should Nicads Be Stored Charged?

Nickel Cadmium (NiCad®) battery: Store in a cool, dry place. The battery should be discharged before storage. If the battery is to be stored longer than a year, it should be fully charged and discharged at least once a year to maintain performance.

Is it better to store rechargeable batteries charged or uncharged?

- Store the nickel and lithium based rechargeable battery at about half their charge. Storing them at full charge will drastically shorten their life. It depends on the specific battery type, but in general about half charged or 40% charged is good. Also, don't store lithium batteries that have no charge.

Should you store rechargeable batteries fully charged?

Storing a battery in the discharged state can push it to the point where it won't recharge, and storing a battery fully charged can shorten its life. Long-term storage is best done as close to room temperature as possible.