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Skip Navigation LinksHome > Products > High Tech Batteries > Energizer® Rechargeable > FAQs
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Energizer® Rechargeable Batteries and Chargers: Frequently Asked Questions

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  1. Do Energizer® NiMH Rechargeable batteries need to be charged before using them for the first time?
  2. Do Energizer® NiMH Rechargeable batteries have to be fully drained before recharging? Do they have a “memory”?
  3. What is the difference between NiMH and older NiCd rechargeable batteries?
  4. What is mAh (milli-amp-hour)?
  5. How many charge cycles will I get out of my batteries?
  6. Do rechargeable batteries lose their charge when not in use?
  7. Why do rechargeable batteries become warm while charging?
  8. How long can I store NiMH Rechargeable batteries?
  9. Can I use alkaline batteries in an Energizer® battery charger?
  10. Can I use other NiMH batteries in an Energizer® charger designed for NiMH batteries?
  11. Can I use another manufacturer’s charger to charge my Energizer® NiMH Rechargeable batteries?
  12. Why are rechargeable batteries 1.2 Volt?
  13. How can I recycle my rechargeable batteries?
  14. What should I consider when choosing a NiMH battery charger?
  15. What is the difference between a smart versus a timed charger?
  16. How do I know if a charger is dual voltage and can be used overseas?
  17. Why do the lights blink on my Energizer® battery charger?
  18. What if I have a question about Energizer® Rechargeable batteries and/or chargers, but can’t find the answer on your site?
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