Puffy Battery

CajunFlyer

CajunFlyer

Well-Known Member
One of my 3.7V 800mAh LiPo's has gotten puffy like a balloon. What causes this and can it still be used? It is not old and has been charged maybe 3 times. Thanks.
 
I have always heard that is bad, even dangerous. I have never taken a chance with those, always thrown them away.
As I was told when asking if they were safe to use is "the safe answer is no".
 
rsava said:
I have always heard that is bad, even dangerous. I have never taken a chance with those, always thrown them away.
As I was told when asking if they were safe to use is "the safe answer is no".
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Yeah, thought so. Haven't been using it, so guess i'll chunk it and order some extras again. Thanks
 
Check what the battery's voltage is right off the charger with a multimeter. Might be a faulty charger that is overcharging and may ruin all of them.
 
"Do yourself a favor get a $10 multimeter."
Don't have one yet.
Guess ya right tho, second, 600mAh battery puffing too.
Bought a 4 batt+charger setup from the slow boat from chiner, probably the prob.
 
Dang. If it's swelled up chunck as far as you can!! Punctured one with a needle and it exploded like fireworks. Smoked up the house and stinks awful bad. Venting with a blower now! Hope not a health hazard.
 
Batteries typically puff not so much from overcharging, but when discharged below 3 amps. Don't fly until your craft loses power, that means your battery is drained too far.
 
With the toy quads I got, in my experience when they drop out of the sky, a quick check shows the battery to be at ~ 3.6-3.8V. I guess if you leave it sitting there after a flight with the lights blinking and forget about it can drop too low.

@ CajunFlyer

What do you have?
 
RENOV8R said:
Batteries typically puff not so much from overcharging, but when discharged below 3 amps. Don't fly until your craft loses power, that means your battery is drained too far.
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Thanks for the info, that's what I've been doing! Once they puff are they any good?
 
Jackson said:
With the toy quads I got, in my experience when they drop out of the sky, a quick check shows the battery to be at ~ 3.6-3.8V. I guess if you leave it sitting there after a flight with the lights blinking and forget about it can drop too low.

@ CajunFlyer

What do you have?
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I have a Syma X5sw-1 with 3.7 800mAh and 600mAh batteries. I guess I am flying too long after lights blink. Good flights can do that I guess. Thanks
P.S. My $12 mulimeter is on the way from Walmart.
 
Dang, 4 of my batteries have died out since yesterday. Have more ordered, guess I need to cut back on flight time per battery. Especially in this 98 degree heat.
 
You can take it to any large electronics store like Best Buy, they have a battery disposal bin. Or if you want to do it your self, mix up a pail of salt water and throw the battery in it and leave for a few days, then it's good to throw in the trash.
 
RENOV8R said:
You can take it to any large electronics store like Best Buy, they have a battery disposal bin. Or if you want to do it your self, mix up a pail of salt water and throw the battery in it and leave for a few days, then it's good to throw in the trash.
Click to expand...
I punctured mine with a hoe to watch em flame out. They can get violently combustible, hehe. Then I trashcan em.
 
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