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Originally Posted by Morebits
(Post 14558823)
That math doesn't work out. 40a X 24v is 960 watts. Your resistors can only dissipate 400 watts and that's assuming you can provide adequate cooling to keep them from burning up at their 100watt Max each.
If your feeding 24v into a 1/4 ohm equivalent load you are drawing 96 amps. V = IR At 4x 1 ohm in parallel it pulls 12v at 40a. |
We must not be talking about the same setup or something. 40 amps at 12v is 480 watts which is too much power for 4x 100 watt resistors In parallel, which I believe is the topic. If you actually have 5x resistors and not 4 then the wattage would work out.
Originally Posted by HBRob
(Post 14559691)
Didnt say I was pushing 24v to the resistor, just that the charger can push this so many ways to get there.
At 4x 1 ohm in parallel it pulls 12v at 40a. |
1 Attachment(s)
If you are only discharging a 2s(8.4v) LiPO, the charger will output ~12V at the outboard load. Make sure the channel is in regen mode.
This is the resistor bank I bought from a guy here on rctech. |
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