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Re: (ET) Weird charger failure



           I have NO idea what the voltages present should be. :) I would disconnect and insulate the capacitor leads and retest. BTW all the OEM capacitors I have encountered DO contain PCBs, so keep that in mind.

RJ

On 12/5/2015 5:12 PM, Christopher Zach wrote:
So the old charger on my E15 (wreck-trak) stopped working this summer, and this fall I figured I would check it.

Symptom was no charging, 110 on primary, transformer was very hot after being on all night.

Power to 36 volt molex line into charger: Check and ok.
Voltage across diodes: .6 volts, check
Voltage across secondary BOOM shorted a diode by mistake.
Raw AC from secondary: 8-10 volts or so. Odd.

So on a lark (and since I blew a diode) I replaced both diodes, cleaned up the connectors, and tried it this evening.

Fail. No charging at all.

Did I actually have the transformer fail? What kind of voltage AC should I see between the transformer secondary poles and what DC should I see on output with the charger disconnected from the pack?

Drat.
C

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