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Cm3024z charge controller

maxs

Feb 19, 2012
4
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Feb 19, 2012
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4
I have a cm3024z charge controller i bought off ebay ( its the fake one i think) as it doesnt have the full programming perammeters but my problem is the volt meter is off by 5 volts and overcharged my battery pack can someone please help me find the proper resistor or resistors that sample the battery voltage so i can replace then/it with a trim pot so i can sorta get it calibrated correctly..
The pic with the micro is under the lcd screen....thanks for any help u may provide... oh and the number on the micro is stm8s005c6
 

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CDRIVE

Hauling 10' pipe on a Trek Shift3
May 8, 2012
4,960
Joined
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Is this an ebay or amazon item? You should post the link.

Chris
 

maxs

Feb 19, 2012
4
Joined
Feb 19, 2012
Messages
4
Yes its an ebay item as i mentioned in the above post but ive been trying to find a schematic for this model and cant seem to do so im assuming that tge resistor or resistors in question may be r7 r11 or r12 but i could be wrong as the positive terminals pass through a diode (to protect against reverse leakage ) tward tge solar array i guess...then through r2 this could be it also but i doubt it thats y i asked for help.... forgot to mention r1 as it goes to one of the mosfets
 

maxs

Feb 19, 2012
4
Joined
Feb 19, 2012
Messages
4
Yes but itsa a one page sheet of paper with nothing about my issue i can post pics if i need too
 

CDRIVE

Hauling 10' pipe on a Trek Shift3
May 8, 2012
4,960
Joined
May 8, 2012
Messages
4,960
After opening the user manual pdf I spent the better part of the day extricating my system of some unwanted trash. I'm afraid that I'm now too gun shy to continue participating with this topic. Good luck.

Chris
 
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