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Old 03-08-2012, 03:59 PM   #1
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Default Lipo safety question. I dont want any fire

I was attempting to cycle my new 2s LiPo and accidentally discharged it way below 3V per cell. I pulsed in on the charger a few times because it would not take a charge for longer than 10 seconds during each pulse. I accepted failure and went along with my day and then a few hours later it was able to accept a very slow charge (@ 2A) up above its nominal voltage.

Should I still be very worried about using this Lipo even though it is back in the acceptable volt range??
Has anybody ever been able resurrect a battery like this and still uses it??
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Old 03-08-2012, 04:32 PM   #2
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Quote:
Originally Posted by warnked View Post
I was attempting to cycle my new 2s LiPo and accidentally discharged it way below 3V per cell. I pulsed in on the charger a few times because it would not take a charge for longer than 10 seconds during each pulse. I accepted failure and went along with my day and then a few hours later it was able to accept a very slow charge (@ 2A) up above its nominal voltage.

Should I still be very worried about using this Lipo even though it is back in the acceptable volt range??
Has anybody ever been able resurrect a battery like this and still uses it??
I have known people manage to use batteries like that again, but I would be very careful when doing so, store it in a lipo bag away from anything when not in use and check when using.

Why did you cycle the cells? there is absolutely no need to do that sort of thing with lipo's.

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Old 03-08-2012, 04:40 PM   #3
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Don't cross post please. I understand you want an answer but patience works well too.

http://www.rctech.net/forum/electric...-any-fire.html
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Old 03-08-2012, 05:10 PM   #4
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Quote:
Originally Posted by warnked View Post
I was attempting to cycle my new 2s LiPo and accidentally discharged it way below 3V per cell. I pulsed in on the charger a few times because it would not take a charge for longer than 10 seconds during each pulse. I accepted failure and went along with my day and then a few hours later it was able to accept a very slow charge (@ 2A) up above its nominal voltage.

Should I still be very worried about using this Lipo even though it is back in the acceptable volt range??
Has anybody ever been able resurrect a battery like this and still uses it??
Theirs no reason to "cycle" a Lipo. balance once and a while is all you'll need. discharging below 3.7 for an amount of time can cause internal cell damage. i'm sure the battery will still work. but it will be more resistant. heat up a little more and will have less "punch" may be noticeable, may not be. but if you keep doing it it will lower its life time
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Old 03-09-2012, 05:16 AM   #5
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the pack was new and i thought that it would be best to discharge the old factory charge before putting it through the rough style of a lap. I read that it was healthy to cycle a new lipo before use.
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Old 03-09-2012, 09:04 AM   #6
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...I read that it was healthy to cycle a new lipo before use.
Where did you read that?
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Old 03-11-2012, 06:50 PM   #7
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I cannot remember, somewhere on the internet, some forum probably. Nowhere worth citing. thanks for the support!
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Old 03-11-2012, 07:35 PM   #8
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the pack was new and i thought that it would be best to discharge the old factory charge before putting it through the rough style of a lap. I read that it was healthy to cycle a new lipo before use.
Probably what they meant by cycling was to run it thru a run (4-6 min.) cycle in the vehicle and then charge. Some guys will do a cycle every couple of months to see what the drop-off is with running and age.
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