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Technical OEM Information
General rule for charging NiCd & NiMH batteries
Assuming the battery is in a fully discharged state (1V per cell), calculate the charge time in Hours for a Nickel Cadmium (NiCd) or Nickel Metal Hydride (NiMH) battery pack using the following formula:
| Charge Time Applicable in Hours = |
Capacity
(C) rating of battery in (mA) x 1.4
Output current in (mA) |
In general, for standard
charge you need to put up to 140% energy in to obtain 100% energy out
of your batteries.
For fast & rapid charge techniques this figure of 1.4 (140%) may need
to be reduced by up to 15%. This is dependant on your charging parameters
and charger termination method.