LiPo Experts?

[Brother D]

Posted elsewhere I've recently obtained a 800mm Draco plane. I went to the local model shop and purchased their last 4S 300mAh battery today (and a Spektrum NX8+).
Came home, charged the battery and installed it in the Draco while messing trying to sort out programming the controller. Anyway I left the battery connected when I got distracted for about an hour, and somehow the LED light running on the plane depleted the battery : /

Now I can't charge it as all cells read 0.00V

Have I properly killed it or can it come back? (if so how, as the charger won't recognise it)....

[clockworks]

Might be possible to revive it by using the NiMh setting on your charger for a few minutes. Choose a suitable voltage, and a low current setting, then try again using the lipo setting.
For safety, do it outside!

[Stiggolas]

I wouldn't leave a flat Lippo no the Nimh setting for more than a few seconds at a time. try it for 10 seconds and you should get enough of a reading to charge it on the Lipo setting. don't go above a 300mA charge current either, and charge it in a fireproof bag. I have rescued a couple of lipos doing it this way.

[-Pete-]

Take it back to the local model shop, tell them it won’t take a charge. FYI, there’s no way an LED would flatten your LiPo pack in such a short space of time. So your charger… didn’t

Edited by -Pete- on Monday 2nd September 13:20

[dom9]

-Pete- said:

Take it back to the local model shop, tell them it won’t take a charge. FYI, there’s no way an LED would flatten your LiPo pack in such a short space of time. So your charger… didn’t

Edited by -Pete- on Monday 2nd September 13:20

This. Got to be a faulty pack!

[Brother D]

Stiggolas said:

I wouldn't leave a flat Lippo no the Nimh setting for more than a few seconds at a time. try it for 10 seconds and you should get enough of a reading to charge it on the Lipo setting. don't go above a 300mA charge current either, and charge it in a fireproof bag. I have rescued a couple of lipos doing it this way.

Thanks - it did bring 3/4 cells back to life but can't get any reading on the last one...

[Stiggolas]

Brother D said:

Thanks - it did bring 3/4 cells back to life but can't get any reading on the last one...

If there's only 3 of 4 cells showing, its a gonner i'm afraid. Chalk it up to experience and buy a new one.