adapt 48v 3 led battery indicator to 72v

jimmyhackers

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May 11, 2015
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is it as simple as just adding a correct value resistor?
 
jimmyhackers said:
is it as simple as just adding a correct value resistor?

Two in a voltage divider arrangement seems like it would work. You want a divider that divides the voltage by 13S/20S.
 
ah ingenious. or me dummy. probably both.

i guess a voltage divider compared to a straight single resistor maintains a better "synergy" with the exsisting led "off/on" values.
 
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