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is a puffed out lipo battery safe to use?

Old 01-03-2006, 07:31 PM
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chris_s
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Default is a puffed out lipo battery safe to use?

so my lipo battery went all puffy and oversized while charging, and I figured it was dead. but I checked the voltage after the weekend and it had some power left, so I put it on the charger under careful watch for 15 minutes and it was up over 9V again (although still marshmallowy)

I've got a new thunderpower battery in the mail on it's way here but I'm impatient and want to play with my new toy

if I charge it up to 11v is it safe to use, or will it fry the electronics in my heli (honey bee cp2)

Thanks!
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Old 01-03-2006, 07:56 PM
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qban_flyer
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I know a character in our e-club that has several Watermelon like T/P packs. They get hot under use, they get hot while he charges them, yet he keeps on using them.

I'm waiting for one of his planes to go PUFF! in mid flight. He also charges under the hood of his SUV. I take my camera with me whenever I go to that field. I know sooner or later I will catch some extaordinary fireworks in action.:o

Everyone there avoids him like the plague, by order of the safety officer he has to park as far away from others as possible.
 
Old 01-03-2006, 08:06 PM
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watt_the?!
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Chris,

Please do a search for lipo fires here at this site...

dont use it...

Tim
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Old 01-03-2006, 08:54 PM
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hoppy
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There have been a number of cases reported of "puffed" batteries catching fire during subsequent charging. For myself, I'd discharge them with a lightbulb and toss them.

Here's one to read about - http://www.rcgroups.com/forums/showthread.php?t=434713
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Old 01-03-2006, 11:31 PM
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Originally Posted by watt_the?! View Post
Chris,

Please do a search for lipo fires here at this site...

dont use it...

Tim
Good advice Tim!
 
Old 01-04-2006, 03:47 AM
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toecutter
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No sir.
2 of my TP2100s Whent Blowfish on me and since they Are like 70 bucks Each,
I decided to make sure I Had gotten my Moneys worth out of them
So I let Them Cool Down And used them again. While Charging they
Remained in Shape but In the helis They balloned after A few Mins,
And had no power left in them.
I Decided To discharge them And dump Em. they Are some Dangerous Critters,
If ya Push them Beyond there limit, from what I've seen.
Please be carefull!!!!
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Old 01-04-2006, 01:48 PM
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chris_s
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ok, I'll have to sit tight until the new battery arrives.
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Old 01-04-2006, 02:32 PM
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Good move!!!
 
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