8C 11.1V 1250 mAh ooopsie!  
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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Common Sense RC Support >> 8C 11.1V 1250 mAh ooopsie!
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8C 11.1V 1250 mAh ooopsie! - 3/22/2008 2:27:08 AM   
ArrowNaughtic



Posts: 1721
Joined: 11/20/2006
From: Seattle, WA, USA
Status: offline 		Ok.......so i was working on one of the helis last nite and was using one of my CSRC 1250mAh lipos and somehow it ended up discharging the lipo down to about 5V total. I never realized it went so low as i thought my ESC had a cutoff at 9V for a 3 cell lipo. Is there any chance of bringing this one back to life? I have heard of guys charging thier lipos on a NiMH charger and slowly bringing the voltage back up to the 3V per cell.
I have a MRC 989 SuperBrain and do have the ability to charge it at a much lower rate (.10A) but with it set on lipo setting and 3 cell it won't even try. I am pretty sure the battery is toast but would like to at least see if i can revive it. I actually use that battery on my Slow Stick and it sits just under the stick and is visible and air cooled at all times.
it is not puffed or deformed in any way, so should I go ahead and see if i can revive it?


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Of all the things I ever lost....................................... I miss my mind the most!
       Post #: 1

RE: 8C 11.1V 1250 mAh ooopsie! - 3/22/2008 6:37:19 PM   
Tram



Posts: 537
Joined: 9/5/2004
From: Florence, AL, USA
Status: offline 		The pack will probably not perform like it did prior to the drain.. 5v on the pack is ~1.6v per cell.. A fully discharged lipo cell is 3.0v.. I'd say it's toast..

Also, this an an $18 pack... For the price versus involved, I'd just buy a new one..

Due to the risks involved, Common Sense RC does not advise reviving it..


Jeff
www.CommonSenseRC.com

_____________________________

Jeff Williams
www.CommonSenseRC.com

(in reply to ArrowNaughtic)
       Post #: 2

RE: 8C 11.1V 1250 mAh ooopsie! - 3/23/2008 10:04:20 PM   
ArrowNaughtic



Posts: 1721
Joined: 11/20/2006
From: Seattle, WA, USA
Status: offline 		Thanks Jeff.......... should i go ahead and hook up a couple of 12V auto lites and drain it completely?


_____________________________________________________________________________________


Of all the things I ever lost....................................... I miss my mind the most!

(in reply to Tram)
       Post #: 3

RE: 8C 11.1V 1250 mAh ooopsie! - 3/28/2008 5:16:23 AM   
Tram



Posts: 537
Joined: 9/5/2004
From: Florence, AL, USA
Status: offline 		You could do that..

Just make sure you don't throw it away charged...

_____________________________

Jeff Williams
www.CommonSenseRC.com

(in reply to ArrowNaughtic)
       Post #: 4

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All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> Common Sense RC Support >> 8C 11.1V 1250 mAh ooopsie!
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