I built a parallel 18650 mosfet box. At first she worked great & no problems, something happened and idk what. My batteries started coming out at different voltages. I did a test...put in both batteries at measured 4.18v (theyre MXJO 2500mah 35a). Vaped a little and one battery was at full charge and one was at 4.03. Switched batts and the full charge one was at 4.11v and the other stayed the same 4.03v. So it seems to me that one battery slot isnt working?? I tried testing the connections but to be honest ddnt really know what to do. With a full charge batt in the left slot i could measure 4.18v from Neg terminal to 510 positive. The other slot i got 0.00 on the MM. I wasnt sure if i was getting a good connection on the probes or not. Anyone have any advice? I can post pictures. The weak points might be solder joint on right battery contact + solder joint connecting (positive to 510) with (pos to switch) + switch connection to positive (i just screwed it down instead of soldering)
Parallel Box Batteries coming out different voltages, Please advise!
- Thread starter roguly
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You are on to it. Put on battery in one slot. Test then move it to the other slot. If you get 0, then you have a short in that slot, either in the ground wire or the hot wire. A dual parallel mode should vape with one battery in either slot.
make sure they are close in charge when u do figure it out and put them back in the mod
one charging the other has been known to cause an explosive reaction..
They should always be within .02v of each other always
one charging the other has been known to cause an explosive reaction..
They should always be within .02v of each other always
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