mini E Revo battery prob

[Mattyfats420]

i got 2 venom 1200 6 cell packs for my mini revo. i charge them up with my peak charger, slap them in with my series connector. than 1 min later the speed gets cut in half like it lost a battery pack.

recharged and than the same thing happend.

trying to figure out whats the problem. connector, battery pack, ESC

let me know what you guys think

 

[sweetdiesel]

Are the packs warm after you pull them off the charger? You could be false peaking.

 

[robmob]

I had a similar issue on my old EMaxx brushless conversion when I didn't run lipo's.

Turns out I had a bad cell in one of the packs.

Measure the voltage in each pack after you notice the drop in speed.

 

[Mattyfats420]

yeah the packs get slightly warm after charging (which I'm pretty sure is normal), but not hot in any one area like I've seen in some packs that had a dead cell.

ill check the voltage after there charged than when i get the drop in speed.

Thanks everyone, ill keep this posted just in case someone else has the same problem

 

[robmob]

Check the voltage at the series connector as well.

 

[x_doug_x]

may also be the low voltage cutoff, i had this problem with my brushless s systems a couple times, come to find out the esc/motor was drawing to many amps for the packs i had. when i turned the low voltage cutoff off, i had no more problems, i don't use the low voltage cutoff for any of my lipos, when they slow a little i pull the packs out and charge them. eventually it will bite me in the butt, but crap happens.

 

[Mattyfats420]

the problem seems to be that one of my packs is only holding like 6 volts at full charge

I'm guessing that means its a dead cell?

 

[robmob]

Sounds like it.

To be sure you will need to check the voltage of each individual cell.

Everything you are describing is a carbon copy of what happened to me though and I had a dead cell.

 

[Mattyfats420]

i only bought the packs like a week ago. I'm going to call Venom and see if its covered

Thanks everyone!