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A4DTM
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06.03.2007, 03:38 AM

so I think I might have a lipo pack going bad?
one of the packs is fine, and takes maybe 10 minutes to balance, while the other pack..
cell 1,3,4,5 were all higher voltage than cell 2.. It's been balancing for 2.5 hours now, and cell 1 finally dropped to be in balance w/ cell 2.. but 3-5 are STILL discharging. (*EDIT-cells 1,3,4,5 are all still high.. 3+ hours later..) This pack has been abused much more than my other pack, but it still charged fine the last time I charged it, and the truck ran normal. If I can ever get the rest of the cells to balance, I'll see what the charger says, compared to the other pack.. I usually balance before and after charging, and this is the first time it's taken this long to balance, and it's still not balanced :(
Here's two pictures of the pack that is taking forever to balance. The pinion came loose on the motor shaft, and slid into the battery (batteries have yet to move), and kind of dented two of the cells, and "cut" into one of the cells a tiny bit.. but I've cycled the pack a few times since that happened, and never had a problem getting it to balance until tonight..



How long does it normally take to balance your packs, if you balance off the charger? Think True-RC would be able to replace the 2nd cell if it is indeed bad?

Here's some other pictures of the truck. First picture, I had cracked part of the rear diff case, you can see the screw tried to rip out of the bulk. This made the front of the suspension arm raise, and was binding the suspension, so I went and ordered $125 worth of random extra parts, so I have less downtime in the future.


fan/heatsink




and my box-o-goodies :)

Last edited by A4DTM; 06.03.2007 at 04:30 AM.
   
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