Dead lipo

Hareton

I over discharged my Firefox 7.4v lipo. Charger won't recognise it now. It's just a basic charger and balancer. Any know if I can recover the battery somehow?

Hareton

Anyone?

glicster

as far as im aware it cant be done with a lipo. i ran one down aswell and just binned it straight away

Lemming

Ask someone who has a configurable charger (i.e. the charge rate can be set according to the maH value of the battery) that also outputs status messages if they'll have a go at trying to charge the battery.

For example, I have a Kong power charger and I've "resurrected" a few LiPos that other chargers couldn't; simply because I could set a very low trickle charge rate whilst also auto-balancing the individual packs. I've been handed a few that it simply couldn't either due to being knackered; but at least the charger told you "why".

Short answer: there is no reliable "yes"; the battery pack may just need a bit of balancing which your charger can't handle; or your battery may indeed be past the point of no return in the voltage stakes. If you can't find someone to hand with a more advanced charger, you don't have much option unfortunately.

Hareton

Lemming wrote: »

Ask someone who has a configurable charger (i.e. the charge rate can be set according to the maH value of the battery) that also outputs status messages if they'll have a go at trying to charge the battery.

For example, I have a Kong power charger and I've "resurrected" a few LiPos that other chargers couldn't; simply because I could set a very low trickle charge rate whilst also auto-balancing the individual packs. I've been handed a few that it simply couldn't either due to being knackered; but at least the charger told you "why".

Short answer: there is no reliable "yes"; the battery pack may just need a bit of balancing which your charger can't handle; or your battery may indeed be past the point of no return in the voltage stakes. If you can't find someone to hand with a more advanced charger, you don't have much option unfortunately.

Would you be willing to give it a go if I posted it to you with a few quid to post it back. I don't know anyone else with that kind of charger and don't want to get rid of it without knowing if it could be saved

thermo

Hareton wrote: »

Would you be willing to give it a go if I posted it to you with a few quid to post it back. I don't know anyone else with that kind of charger and don't want to get rid of it without knowing if it could be saved

for the price of posting a battery with "a few quid" to post it back, you would buy a new one here
http://www.hobbyking.com/hobbyking/store/index.rc

Lemming

As thermo has said Hareton, for the cost of a Lipo getting over to me and back (being in the UK and all), you'd be better off getting a new battery for the value of your money.

Sorry dude.


Edit. If you know anyone travelling to the UK for a TA-Events game next year, I will be there. So if you want to give the battery to them to see if it can be resurrected I'd be more than happy to have a go. But again that doesn't solve your immediate issue as you'll still be better off getting a new battery if you don't know anyone to hand with a configurable lipo charger.

Hareton

Lemming wrote: »

As thermo has said Hareton, for the cost of a Lipo getting over to me and back (being in the UK and all), you'd be better off getting a new battery for the value of your money.

Sorry dude.


Edit. If you know anyone travelling to the UK for a TA-Events game next year, I will be there. So if you want to give the battery to them to see if it can be resurrected I'd be more than happy to have a go. But again that doesn't solve your immediate issue as you'll still be better off getting a new battery if you don't know anyone to hand with a configurable lipo charger.

No hassle. Didn't realise you we're in the uk.

@ thermo. Just got a delivery of batteries form there. I can't find one anywhere else the same size as the one that's dead

thermo

Hareton wrote: »

No hassle. Didn't realise you we're in the uk.

@ thermo. Just got a delivery of batteries form there. I can't find one anywhere else the same size as the one that's dead

hobby king list the dimensions of the batteries on their site, it just a matter of sitting down and going through them.

Hareton

thermo wrote: »

Hareton wrote: »

No hassle. Didn't realise you we're in the uk.

@ thermo. Just got a delivery of batteries form there. I can't find one anywhere else the same size as the one that's dead

hobby king list the dimensions of the batteries on their site, it just a matter of sitting down and going through them.

I did and none were what I was looking for. The ones I have will work just a really tight fit.

thermo

what gun is it for and where is the battery placement?

Hareton

thermo wrote: »

what gun is it for and where is the battery placement?

It's to go in the stock tube of a Madbull ace skeleton stock(short version). I have the wires on the batteries as short as possible and they still get a little pinched when the back of the stock is put on.

thermo

what are the dimensions of the dead battery.

<edit what voltage too>

Hareton

thermo wrote: »

what are the dimensions of the dead battery.

<edit what voltage too>

104x2012 and its a 7.4v 1100mAh

thermo

Hareton wrote: »

104x20x12 and its a 7.4v 1100mAh

??

thermo

hobby have 7.4v 20c 1300 Mah li-po's that are quite good but they 120 x 20 x 12 mm.
you could just go into any of the retailers with your stock and see what fits