Depending on the climate they're used in, NiMH rechargeable batteries typically last from 2 to 5 years. When they're replaced, be sure to do the following:
- Contact your local waste disposal management authority for guidelines concerning NiMH disposal.
- Discharge the batteries fully prior to disposal.
- Do not incinerate.
- Do not open or puncture the batteries.
- Observe all national, state, and local rules and regulations for disposal of rechargeable batteries.
Is is recommended to replace the NiMH rechargeable batteries with another set of NiMH rechargeable batteries.