1) Three in one charger, can be charging by car cord,by plug, and pin..
2) Four individual charging slots for mixed AA and AAA Ni-MH or Ni-Cd cells.
3) Multi-level protection circuit providing over-charge, over-voltage and short circuit protection, Reverse polarity protection.
4) Micro processor (MCU) controlled with built in timer and auto cut-off with:
a) International standard charging circuit: Delta V and zero slope voltage detection.
b) Non-rechargeable, fully charged battery, defective and poor quality battery detection.
5) LED indication for power and charging status.
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