do Li Poly batteries self discharge
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do Li Poly batteries self discharge
I started to fly my electric plane a few weeks ago and decided to pack up and go home. The wind started gusting up to 25 mph and I didn't want my 1st flight using electric equipment to be done in a hurricane. I am an experience flyer but didn't know the actual power of the electric gear I have since i've never flow with electric before. The battery pack I'm talking about is a Zippy 20C , three cell 2650 Mah. Its been about 5 weeks since that happened. Will the battery still have its full charge or will I have to re-charge it? If in the event I do have to re-charge it, will I have to cycle it down or what is the procedure?
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RE: do Li Poly batteries self discharge
Yes, they do self discharge but at a very low rate. Since man has not yet invented a perfect insulator, all batteries will self discharge with the rate determined by the quality of the insulation between the plates and contamination between the two poles.
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RE: do Li Poly batteries self discharge
Thanks for all the quick responses to my question. I appreciate very much the ones that took the time to answer my questions. As I've said before, theres a wealth of information on batteries all over the internet, but digging out the information as it pretains to me can mean hours of scouring the posts and threads trying to find my specific inquiry. Thanks Rodney,Aeajr and Barracudahockey.
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RE: do Li Poly batteries self discharge
ORIGINAL: Rodney
Yes, they do self discharge but at a very low rate. Since man has not yet invented a perfect insulator, all batteries will self discharge with the rate determined by the quality of the insulation between the plates and contamination between the two poles.
Yes, they do self discharge but at a very low rate. Since man has not yet invented a perfect insulator, all batteries will self discharge with the rate determined by the quality of the insulation between the plates and contamination between the two poles.
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RE: do Li Poly batteries self discharge
I believe that the lower resting voltage after charge is due to higher internal resistance. As the battery ages, IR goes up and you can see this during the charge cycle where you reach CV much quicker. Since the charger will not exceed 4.2v per cell, and part of that potential is dissipated by the IR, it stands to reason (at least to me!) that the battery will come off the charger at a slightly lower voltage.
My tired 10S packs will be 41.7v after resting off the charger but the lower cycle batteries will maintain 42v.
My tired 10S packs will be 41.7v after resting off the charger but the lower cycle batteries will maintain 42v.