rc8be and puffed lipo's :(
#1
rc8be and puffed lipo's :(
So i am lost here. I have a rc8be with a mamba monster 2200kv setup. The gearing is 15 46. I was running 2 newer (always balanced charged) Trak power 5600mah 60C packs on the street. After about 5 min i stopped and both packs were puffed. The motor temp was 150F and the esc was not hot.
I checked the lipo's cell voltages battery 1 had cell voltage of 3.93 and 3.94 and the other lipo had cell voltage of 3.97 and 3.98.
With the temp being around 150 i thought i was good. was i under geared?
thanks for any help here, Joe
P.S i just recharged 1 of the lipos it took 1387 mah and finished with cell voltages of 4.204 and 4.206
I checked the lipo's cell voltages battery 1 had cell voltage of 3.93 and 3.94 and the other lipo had cell voltage of 3.97 and 3.98.
With the temp being around 150 i thought i was good. was i under geared?
thanks for any help here, Joe
P.S i just recharged 1 of the lipos it took 1387 mah and finished with cell voltages of 4.204 and 4.206
#2
so i recharged one of the lipos and it took 1387mah and cells ended at 4.204 and 4.206
#3
Tech Adept
You should run with a timer like 5-6 min.
A lipo don t like to be full discharged. It may be cause your "puff"
A lipo don t like to be full discharged. It may be cause your "puff"
#4
Suspended
It might be too much of a load for your batteries to handle.
#5
#6
Tech Elite
iTrader: (71)
I agree that it is more than likely too high a draw. Running on concrete/carpet provides alot of traction and will result in a higher draw than running on dirt or grass.
You seem to have decent batteries so this is kind of perplexing.... Were the lipos warm? How many cycles are on your batteries? Ever puffed before?
#7
Packs had about 10 cycles on them. It was fresh blacktop the car was hooking up great.its going to be on a clay track. So guess i can just hope it was the blacktop that caused it.
#9
Tech Addict
It may have been the at battery did go much lower than that but then recovered by the time it was measured. A high load will also cause low voltage.
#10
guess The answer is to keep the car for the track and off the street. lipos are to expensive lol
#11
Suspended
Just change your gearing depending on what kind of driving you are doing and you should be fine.