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Circuits designed by David Johnson, P.E.

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Last Updated on:  06/21/2009 05:58:48 AM

 Battery Testers   Constant Current / Current Sink

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6V NiCd/NMH Battery Test Circuit - 10 Amp Constant Current Load
I designed this circuit to test rechargeable six volt battery packs under constant current conditions.  As designed, the circuit applies a 10 amp load to the battery pack.  A heat sink must be used on the main power transistor.

Circuit 6V Battery Test Circuit designed by David A. Johnson, P.E. (Dec 12, 2004)

 Battery Testers   Constant Current / Current Sink

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