I have a couple Integy 4100 NIMH 6-cell 7.2V packs that started to drop. I found one Single Cell in each pack that reversed polarity. I was able to jump start one of the by hitting it with two seconds off a 12V battery and it is holding at 1.27v nicely. The other one I hit a few times and it goes up to about .90v or so but then drops the charge right away. My question is that I am trying to find one Single Cell 4100 NIMH to replace this dead cell but can't seem to find anyone who cells them anywhere. Does anyone know where I can pick one of these up or do you think someone around here might have one that i could purchase? I have tried the usual sources like All-Battery, Battery Junction, etc. but no luck.

Thanks in forward for your help....

Erik

ebay theres a few guys that sell em for a few bucks each
thing is I dunno if its a good idea seeing they won't be impedance matched to the others

go lipo, nimh is dead tech, and finally, its one change im happy with.

I would love to go Lipo but it is for my sons E-Maxx 3906 which is basically stock electronics except servo. It is running like a top and have never had issues outside of the batteries. The only issue with going Lipo is that the investment isn't just batteries and a servo swap. I would have to change out to brushless, all gears and drivetrain, etc. I can only imagine the amount of outlay of cash verse rewards. Unless someone knows a simple way to switch it to Lipo without swaping out everything, let me know. It certainly would be nice to get rid of the NIMH's.

E

um, if im not mistaken, as long as you run a 2s and a lipo alarm your good to go. chargers on hobby partz are cheap, good, and some even charge NIMH for $30

Low Voltage Alarms are $4 on ebay shipped (I just got 2 last week )
You plug those in to the balance port on the lipo and it will emit a loud alarm when any of the cells hits 3.4V
I run 2S lipos on a few brushed systems using those.