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How do I charge my rechargeable battery

Your rechargeable battery can be charged by using an adapter that came with your original device. For example, a wall charger/cord, USB cable, or car charging adapter. The device you use to charge it depends on your device's capabilities and originally included accessories.

Initial Charging, Recharging, and Charging During Storage:

Initial Charging: When you first get your battery you should charge it until your charger or device indicates that it is fully charged. If your device/charger does not indicate whether or not it is fully charged, then check your device/charger manual for charging times. It can take 1-12 hours to fully charge depending on the chemistry of your battery and the type of device and charger. After that it is good to charge it as needed while making sure you do not leave it at a low charge level for long periods. Also, please keep in mind that it can take 2-4 initial full charges/discharges before a new battery begins to provide maximum performance/runtime.

Recharging: Your battery was designed to be charged regularly and should NOT be left at a low charge level for long periods. You should charge it as often as needed to prevent the charge level from getting much below 15% of full.

Charging During Storage: During storage your rechargeable battery will trickle discharge naturally (or slowly lose its current charge). Long storage periods can permanently diminish the overall life of the battery especially when the battery is left at a low charge level for too long. If you will be storing your battery for a long period of time, be sure NOT to store it at a low charge level. Bring the charge level up to full before storage and then top off the charge level as needed during storage (to prevent it from sitting too long at low charge). It is highly recommended, even during storage, that you charge the battery regularly to prevent the possibility of the battery sitting at low charge for too long (sitting at low charge for too long will cause deep discharge which can permanently damage the cells and render the battery useless). Damage from deep discharge is NOT a defect and therefore it is not covered by warranty. For rechargeable lithium batteries in storage (including lithium ion and lithium polymer), a full recharge might be needed every 3-6 months. For rechargeable nickel batteries in storage (NICD and NIMH), a full recharge might be needed every 1-2 months. Nickel batteries trickle discharge in storage faster than lithium batteries.

More Info:

  • Each chemistry has different charging times. NiCad and NIMH batteries require 10-12 hours to fully charge while Lithium Ion batteries can be charged withing 1-4 hours (depending on capacity).
  • A portable device should be turned off while charging. This allows the battery to reach the threshold voltage unhindered and reflects the correct saturation current responsible to terminate the charge.
  • Charge at a moderate temperature. Do not charge below freezing.
  • Lithium-ion does not need to be fully charged every time. This holds true with NiCad or NIMH batteries.
  • Chargers use different methods for “ready” indication. The light signal may not always indicate a full charge.
  • Discontinue using charger and/or battery if the battery gets excessively warm.
  • Before prolonged storage, charge the battery so that it won't trickle to a low charge too quickly.
  • Over-discharged batteries can be “boosted” to life again, but not always.
  • Deep-discharging batteries is not something you need to do with each charge but only once in a while (example: if you are trying to diagnose the battery's condition or test your device's battery gauge). Fully discharging Lithium Ion, Lithium Polymer, NICD, and NIMH batteries is not recommended on a regular basis.


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