They age out whether you use them or not. Keeping them in storage mode only slows the aging process. I sometimes get calls from people saying that their plane has no punch or power. First thing I as is "how old is the battery?" Typical answer, "it's new I never used it before" Next question, "When did you buy it?" Answer "5 or 6 or 7 or more years ago but I never used it so it is new". Sorry but your battery is no good , it aged out, buy a new one. Speaking of my own batteries I never keep them charged unless I am going to fly them. I put un-flown and flown batteries back in storage mode that same day. I tend to buy 6 new batteries each year, Those are my NATS batteries, It insures I will never have a battery failure at the NATS. I will fly those batteries for another year or 2 and they work fine. Then I pass them to a friend or someone who needs a few batteries. They generally get another year or 2 out of them. So if they are well taken care of, I would say 3-5 years would be the lifespan for batteries for most flyers. If they get soft or puff I stop using them immediately. I will not risk a plane for a bad battery. This year I switched to LION packs. So far they have been great. It will take a while to figure out what a reasonable lifespan will be on those. I passed on my 2019 and 2020 packs at this years NATS to fellow competitors. I can tell you that all those packs flew at this years NATS. How much longer they will last? I don't know.
Topic: Life Span of a battery? (Read 562 times)