Hey guys, I just had a pretty bad crash with my T-rex 450, amongst the damaged bits was the battery. There was no piercing or series bending or break ing of the battery but the far corner (away from battery leads and wires) is pressed down a little. All three cells appear to be just slightly bent from about an inch two half an inch back. I unwrapped the battery (DID NOT DISASSEMBLE) to inspect the cells, the cells are totally undamaged except that slight bend. It's an Apex battery. Voltage reads fine, charged it a little and nothing bad happened. Is it alright to re-use? Would Pics help???

I have some also with small dents and dings. I would be very carefull charging them. Watch them as you are charging , also put them in or on a fire proof substance like pottery or concrete. Have nothing that will burn within 3-4 feet of them so if they go off they will not catch anything on fire. Also store them in a fireproof container like a BBQ grill or something similar outside . Or you couldjust go the safe route and kiss them off. Your choice, but remember they are capable of burning you house down, thats a proven fact!!!!!!!!!!!!!
Be Carefull
Bob

Providing that you have re charged them again and they haven't puffed up or anything (keep a regular close eye on them though after damaging them) then you have either been totally lucky and got away with it, or in some cases you can partially lose some of the batteries capacity, how much loss will depend on how much damage there is usually, but in other cases it may just wipe out one cell.

But as you said that the voltage reads fine then you may be lucky.

Do you have a balancing plug on that lipo ?

If so, then I would not only check the total voltage, but also check the voltage of each individual cell, to make sure that they are still in balance with each other by being no more than 1/20 of a volt ( 0.05 volts) difference between all cells.
This will give you a good idea if any single cell is either damaged, or maybe just out of balance from normal use.