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Project Notes

#691 CH2PC4 NiMH Charger

A few quick notes on the Energizer NiMH charger CH2PC4.



The CH2PC4 is an NiMH battery charger from Energizer. It was distributed in Latin America, Europe and Asia-Pacific markets.

The basic specs:

  • Battery Chemistry: NiMH
  • Cell Size(s): 1 or 2 AA, 1 or 2 AAA
  • Charge Rates: AA 170-200mA, AAA 80-100mA
  • Charge Control: Yes
  • Weight: 65g
  • Size: 115x45x70mm

Estimated Charging Times

Battery Capacity Charge Time
AA 1300-2000 mAh 7-10 hrs
AA 2000-2300 mAh 10-12 hrs
AAA 500-800 mAh 8-10 hrs


Credits and References

About LEAP#691 Power
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This page is a web-friendly rendering of my project notes shared in the LEAP GitHub repository.

LEAP is just my personal collection of projects, usually involving an Arduino or other microprocessor in one way or another. Some are full-blown projects, while many are trivial breadboard experiments, intended to learn and explore something interesting (IMHO!).

The projects are usually inspired by things found wild on the net, or ideas from the sources such as:

Feel free to borrow liberally, and if you spot any issues do let me know. See the individual projects for credits where due. There are even now a few projects contributed by others - send your own over in a pull request if you would also like to add to this collection.