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#1
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Battery Help
After taking my car for a spin yesterday, I've come to recharge the battery and it looks knackered. One cell reports a voltage of 0.00 and the other cell reports 3v, but when I try and charge it on its own (1s 3.7v) it says its full after about 30 seconds, and when I discharge it it says its empty after about 30 seconds..
Its an Orion 4000 ultimate high voltage shorty. Is there anything I could try to shock it back into life, even if its not as performant? I've not had it long :-( (The only mistake I think I made was leaving it plugged in overnight, even though the ESC was turned off. (A reedy black box)) After blowing up my ESC a few weeks back, I feel I'm not having much luck with electrics... Stuart. |
#2
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it's odd that you only left plugged in overnight I have left stuff plugged in for weeks carelessly with no problems
is this a two cell stick pack ? it is possible connecting wire inside pack is dislodged but that's rare you could try charging bad cell on a nimh setting see if it recovers but you must watch carefully and swop to lipo setting once voltage gets to approximately 2.8 v again this is not successful that often cheers Dave |
#3
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I had a similar issue it turned out to be a break in the wire of the balance port connector so if you can try a different charge lead
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#4
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Cheers guys,
Its a shorty. I'll try on Nimh. I've already tried different leads and I've check the voltage with a multimeter. I can get the ~3v reading from the positive and negative connections and I can get the same on the left side (i.e. one of the cells) from the balance connector and the negative connector. I get 0.0v from the positive and balance connectors. Is it feasible to open the battery up and check for broken connections? Stuart |
#5
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and just to add, I've just check the continuity between the connections on the battery. Between positive and negative I get a reading of 569 (which I guess is the internal resistance). Same between negative and the balance port.
I get 000 from the positive and balance port. Does that support the theory of a broken connection?? Stuart. |
#6
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You should never continuity test a live circuit - i.e. a battery. This could possibly damage your meter.
It does sound like a dead cell, but as someone else mentioned every time I've had this in the past it was the charge lead itself, the balance pin had come unsoldered.
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Back from 30 year retirement finding use for my thumbs again, slowly getting faster! |
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