Quote:
Originally Posted by tc3_racer_001
here are some pics of the underside of the board. there are no pots that i can see, are there different types which look completely different to those commonly seen? thanks
see how closely the 2 rails are divided, do you think that there would be any way without blowing it up to try it?
o yeah i forgot... the 2 smaller blobs near the side, in the middle of photo 1 are the 12v rails... the other HUGE blob is the common rail. hope that makes sense!
yeah i was planning to turn it off use an insulated screw driver (wait till the voltage hasdrained from the caps of course) then adjust it a 1/16 of a turn or something then turn it on and re measure. im not keen on touching it while its connected to 240v!!
btw, where would the pots be??
|
Well, you can try paralleling the two rails and watch temps. It might run fine, it might not. Also, if possible, get a voltage reading under load when seperate and then again while paralleled. It should dip less when paralleled. If not, then you aren't gaining anything.
The pots (if present) could be anywhere on the component side. They are typically small and may have a bit of goop on them to prevent them from "drifting".
@e-rev project: 25A @ 13.8v is 345w. Accounting for charger efficiency, that leaves you with around 276w for the batteries. If you can tweak up the voltage a tad to something like 14.5v, it would take less current.