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Thread: 7 volts in a 3 cell lipo, how dumb am I?

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Old 07-10-2011, 08:13 PM   #1
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Default 7 volts in a 3 cell lipo, how dumb am I?

Does that mean I have 2 and a 1/3 volt per cell?

Am I that dumb?

Thanks.
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Old 07-10-2011, 08:20 PM   #2
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Quote:
Originally Posted by opek View Post
Does that mean I have 2 and a 1/3 volt per cell?

Am I that dumb?

Thanks.

Kinda sounds like you have a dead cell.
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Old 07-10-2011, 08:33 PM   #3
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Kinda sounds like you have a dead cell.



Now I go on with the whole nimh dead cell recovery thing? Sounds like fun.

Last edited by opek; 07-10-2011 at 08:35 PM.
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Old 07-10-2011, 08:53 PM   #4
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Whoa man, fire up the video camera and have a fire extinguisher ready.
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Old 07-10-2011, 09:04 PM   #5
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Quote:
Originally Posted by opek View Post
Now I go on with the whole nimh dead cell recovery thing? Sounds like fun.
No. But if you do...

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Originally Posted by crunky View Post
Whoa man, fire up the video camera and have a fire extinguisher ready.
Be sure to get it on film so we can all see it.
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Old 07-10-2011, 09:10 PM   #6
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The battery only has 1 cycle on it and has been below threshold for under 10 hours. It is currently on a trickle charge, outside on concrete away from anything. I am sitting here on my laptop waiting to swap it onto the good ol thunder power.

As I understand it I have a low chance of some sort of permanent damage which would result in ballooning given the short period of time the battery has been undercharged.

FWIW I do have a fire extinguisher ready
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Old 07-10-2011, 09:14 PM   #7
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It just started to balloon slightly in one of the cells. Oh well, to the trash with it.
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Old 07-10-2011, 09:43 PM   #8
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Quote:
Originally Posted by opek View Post
It just started to balloon slightly in one of the cells. Oh well, to the trash with it.
Be sure to properly discharge it before you do that.
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Old 07-10-2011, 09:47 PM   #9
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Be sure to properly discharge it before you do that.
Or film the bin...


Cheers
Dan
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Old 07-10-2011, 10:47 PM   #10
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Be sure to properly discharge it before you do that.
Light bulb = safe discharge.
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Old 07-10-2011, 10:58 PM   #11
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Cut the plug off, then tie the + and - wires together and call it good.


























J/K DON'T DO THAT!!!!!!
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Old 07-11-2011, 01:32 AM   #12
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poke it with a stick lol
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Old 07-11-2011, 01:20 PM   #13
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I think to properly discharge for disposal you put the battery in a bucket of saline. (salt water) for like 24 hours.
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Old 07-11-2011, 04:59 PM   #14
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Take it behind the shed out back and shoot it, it's how I put down all good things that stopped working.....
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Old 07-11-2011, 05:05 PM   #15
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Quote:
Originally Posted by opek View Post
Light bulb = safe discharge.
No.

Quote:
Originally Posted by 92LILREDYJ View Post
I think to properly discharge for disposal you put the battery in a bucket of saline. (salt water) for like 24 hours.
Yes.
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Old 07-11-2011, 05:11 PM   #16
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just save the other 2 cells make a 2s
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Old 07-11-2011, 07:35 PM   #17
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Quote:
Originally Posted by 92LILREDYJ View Post
I think to properly discharge for disposal you put the battery in a bucket of saline. (salt water) for like 24 hours.
I have read to soak it in salt water from as little as 12 hours to as much as 2 weeks. But I have also read the salt water occasionally causes the contacts to corrode and the battery will remain with an unknown charge (and even worse may read 0 volts while still containing a dangerous charge). A light bulb seems like a fail safe way to discharge the battery safely.
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Old 07-11-2011, 07:38 PM   #18
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Quote:
Originally Posted by shelby View Post
Cut the plug off, then tie the + and - wires together and call it good.
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