7.4 lipo showing 2 volts
#4
Tech Adept
The cut off won't work if the ESC isn't turned off.
You can't leave it plugged in over night, your battery is dead.
There's ways of trying to revive it slowly on low amps on your charger's NiMh mode, but its not exactly the safest thing to do.
You can't leave it plugged in over night, your battery is dead.
There's ways of trying to revive it slowly on low amps on your charger's NiMh mode, but its not exactly the safest thing to do.
#6
Packs dumped like that can usually still be charged and still have some life left in them, but do so at your own risk and expect it to puff and die eventually.
#8
Tech Adept
Pop it in a bucket of salt water to kill it (whats left rather) before discarding, I believe thats the proper way to dispose of LiPos.
#10
Tech Adept
Yes, thats exactly what happened here.
#11
Depends on the esc... some will draw a small current and slowly drain the battery, but some don't.
Lipo disposal:
Rather than messing with a salt bath, simply discharge it slowly to 0 volts. That's the idea of the salt bath... saltwater conducts some electricity and will slowly dump the battery. But it's not necessary. Once the voltage is 0, there is no energy in the pack to do anything destructive. But if it gives you peace of mind... go ahead, it can't hurt.
Flames, smoke, heat... require stored energy. A fully dumped pack is just an expensive paper weight.
Lipo disposal:
Rather than messing with a salt bath, simply discharge it slowly to 0 volts. That's the idea of the salt bath... saltwater conducts some electricity and will slowly dump the battery. But it's not necessary. Once the voltage is 0, there is no energy in the pack to do anything destructive. But if it gives you peace of mind... go ahead, it can't hurt.
Flames, smoke, heat... require stored energy. A fully dumped pack is just an expensive paper weight.
#13
Tech Lord
iTrader: (21)
If yourh batt has a lot of use on it - its pretty much done. If it was fairly new, can try charging as nimh at low amps (like 0.5a) and see if voltage will come up. If it does, soon as its above 6v, stop charging as nimh and switch to lipo. Monitor it thru the rest of the charge. How much it takes will give you an idea of how much it was damaged by the overdischarge.
Never leave batt connected, period.
Never leave batt connected, period.