The Wahl IsoTip NiCD destroyer

Well that decades old mystery is solved: why your damn IsoTip battery is always shot.

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Dumb charger
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Sadly digikey no longer has this part, but it's not exotic, it's two nicd sub-c's
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The pins are simply connected across the battery
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The bottom of the red plunger pushes the brass contact down to close the circuit when you desire heat

A replacement is available from Amazon and PartsExpress for $17. Unfortunately the dumb charger will eventually kill it. If I buy one of these I’m stripping out the charger guts and wiring it to a smart charger that stops when the battery is full.

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