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Does my 3s lipo have a dead cell? Plz help.

Does my 3s lipo have a dead cell? Plz help.

Old 08-24-2009, 07:09 PM
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Default Does my 3s lipo have a dead cell? Plz help.

I have a Thunder Power 3s lipo battery that has like 2 charges on it. I tryed to charge it on a GT power lipo charger and it says that the voltage is to low when I pick 3s to charge up the battery? does this mean that I have a dead cell? I cant plug in the balance port as I need a adapter for it to work.. If the cell is dead will Thunder Power replace the battery?

Thanks, Nick
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Old 08-24-2009, 07:30 PM
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Whats the voltage of the pack? Sounds like you ran it below the minimum safe limit for a 3 cell 11.1 pack (9ish volts) If you can try to use a charger that will "repair" the pack by trickle charging it until it brings it out of the minimum limit. Or if you have a charger that will try charging it regardless of what the voltage is, you can throw it on that charger and try feeding it a really low charge, like under .25 mah per hour.
I have seen a lot of people running packs a little low on there Slashes and were able to repair the packs. Be careful about trying to repair the packs.
Thunder Power is really good about replacing batteries that are truely defective.
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Old 08-24-2009, 08:20 PM
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Originally Posted by dhc8guru
Whats the voltage of the pack? Sounds like you ran it below the minimum safe limit for a 3 cell 11.1 pack (9ish volts) If you can try to use a charger that will "repair" the pack by trickle charging it until it brings it out of the minimum limit. Or if you have a charger that will try charging it regardless of what the voltage is, you can throw it on that charger and try feeding it a really low charge, like under .25 mah per hour.
I have seen a lot of people running packs a little low on there Slashes and were able to repair the packs. Be careful about trying to repair the packs.
Thunder Power is really good about replacing batteries that are truely defective.

I figred it out, My roomate had the power suply for the charger so I hooked it up to my truck, When he got home I hooked it to the power suply and it worked. Why I do not know... But all is good!
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Old 08-25-2009, 06:17 PM
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You need to get the adapter so you can balance (and charge) as soon as you can. Either than or use a DVM and find out what each cell reads for voltage. That way you'll know if you have a weak cell or not.
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Old 08-26-2009, 03:08 AM
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Your battery on your truck might be on its way out, if it worked on the power supply, and not on the truck!

Did it say that the input voltage was too low?

Either way, get a balancer!
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Old 08-26-2009, 04:06 AM
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it can be done, i've brought a pack back from the dead.

thunder power does have a lifetime warranty though also, i don't know if over discharging falls under that though
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