ORIGINAL: Rufcut
I had time this afternoon to pull the old battery out and found 3 dead cells and 1 with 0.75 volts. Just curious how 3 cells would suddenly go bad. There was no evidence of a short, no burn marks, no discoloration, nothing visible at all. This pack was about 6 years old. Is there a way to tell if a cell is open as opposed to shorted? Also, where do I recycle these dead batteries?
Thanks for all the feedback
Rufcut
Yeah, that's what happened to one pack in my Venus II. I flew it three or so times one day then one of the two packs was just about dead. I'm glad it caught it, but also glad I had two battery packs in that plane that day.
Although it may.. could.. take a charge, it is not a battery I would rely on for flight. It may be fine for bench testing and other stuff, but not for flying. Replacement batteries are cheap enough that it just isn't worth the chance you will take using a questionable battery in flight.
CGr.