Anyone out there know why or have there cutoff kick in with 3.77v in all cells (sometimes it's 3.75s) or similar? I thought it was just my esc but I ran this 6s pack in my buddies talion today and it did the same thing in it.
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chevys10zr2003
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What mah, cell count, brand and C rating batteries are you running? I noticed with my 5200mah 3s Lectron Pros that after cut off they are at 3.60-3.65 per cell while my 5000mah 2s gensacearespammers are 3.40-3.45 per cell. What that means is that under load my Lectron Pros have greater voltage sag which is triggering the low voltage cutoff.
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There smc 6s 7400mah 90c, but my buddy has the same lipo n we got them same day and his will run down to 3.34 every time in his or my arrmas ... that's funny I had 3 lectron 6s 5200s and they cut out lower....untill 3 months went by n they all dropped a cell in the same week I just made them into 4s packs today
On another note these smc 7400s last like a hr...4 $120 there a deal
On another note these smc 7400s last like a hr...4 $120 there a deal
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chevys10zr2003
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That is odd that a large capacity, high discharge SMC battery would have that much voltage sag under load. I wonder what the heck is going on there. The battery doesn't get hot, swell up or connectors get hot? I guess since you narrowed it down to a battery and not an ESC issue, you could see if maybe it's a bad solder job on the battery connector maybe.
Yeah I haven't had good luck with Lectron Pros but my one buddy has had nothing but good luck with them.
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That's what I was thinking, maybe a bad soldering job on the wires or on one of the tabs, I'm pretty sure it's only under full load cuz I can switch the esc off and on and it will run full power again until I get on the gas hard 4 a few seconds, the lipo and connectors don't get crazy hot or anything either but it must b voltage sag from a weak connection somewhere rite? The cells r always exactly the same ,all 3.77 or close sometimes it's all 3.75
As for the lectron pros they could b good lipos they just need to match the cells a lil better,in 2 of my 6s 5200 packs the cells that stayed good are all exactly the same and 2 are now 4s packs and I used a spare cell to replace 1 in my 3rd 6s that was the same voltage, and the cell or cells that died were always a lil off the others n got worse as time went on even thou i balance every time n pack i charge
chevys10zr2003
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Yeah that's the only thing I can think of. If nothing is getting hot and you are still getting good performance and good runtime, I personally wouldn't worry too much about it.
Yeah I got four 3s Lectron packs with my 2wd Slash 3 years ago and then last year I got four 2s Lectrons. Then in one month two of the 3s batteries dropped a cell and then two of the 2s batteries started getting way out of balance to the point that they each killed a cell within 2 months. I haven't bought another Lectron battery since.
chevys10zr2003
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No problem. Not sure if I really helped though lol. Let me know if you decide to check the solders and if you find anything else out.
chevys10zr2003
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Sounds good. Let us know if that helps this issue.
