Thursday, March 15, 2018

examined the charging circuit

I examined and traced the circuit paths on the main PCB in the MotoMaster Nautilus 800A booster pack. Learned that charging via the built-in jack would directly send inlet power to the SLA battery. That is, there was no "smart" circuitry for managing the incoming power to the battery. That was bad news and good news. It suggests a smart external charger will avoid cooking the battery. All that needs to be done I believe is to hack a custom cord (with the correct polarity).


Tested the super-heated diode. 0.485 one way; infinity the other way. Looks OK.

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