How long a lipo can hold power without use?
Took out 4 small 2s lipos not used in
six years!. Stored at around 3.85v per cell.
Nine Eagles 180 & 250 mah, two Zippy 350s.
All still showing between 3.78 and 3.85v per cell.
Of course voltage alone is not a sufficient indicator, the ability to provide enough current also needs to be checked.
I was surprised that all four are still able to take full throttle on an Emax 2805 with 6x3 prop without sagging.
(On the other hand, a brand new Turnigy 2200mah 3s, left fully charged, bloated up in 2 months. Still shows 3.80/3.82/3.84 but is no longer able to supply useful current, ie, sags badly after 1/4 throttle. Of no use in a model. Perhaps I'll put it in a Tx!)
Regards