Model Boat Mayhem
Technical, Techniques, Hints, and Tips => Batteries & Chargers => Topic started by: lesfac on October 12, 2017, 01:20:07 pm
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I just took my Perkasa for a sail. I am aware of the low voltage cut off and the esc is set and I have a bleeper fitted to sound before reaching the esc cut off. (However my deafness makes the bleeper hard to detect).
The boat just stopped and I had to recover it to find the battery was extremely low and a little puffy.
I am unsure if I missed the bleeper sounding but even so the esc should then have kicked in and when this happens a short wait usually let's you restart and gently sail back but not this time.
I have come home and put the battery on a balance charge and it seems to be taking the charge and the puffiness has gone away.
As I write this the 5 cell Lipo is approaching 3.9 volts per cell.
My concern is how safe is it to use this battery again? I don't mind taking a chance on it giving up but obviously the worst scenario is it catching fire while sailing the boat.
Can anyone comment on this?
Les
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If it's started puffing I really wouldn't risk it.
A battery is a battery and a boat is a boat, I know which I'd rather be chucking in the bin! (Ps you should take LiPos to be safely disposed of, don't bin them!)
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bucket of salt water, chuck them in and leave to go totally flat.