I purchased a LIP battery for my trolling motor. I researched the you know what out of this - especially safety. I also purchased the recommended charger for it. Had it for 2 years - loved it. Performance is amazing. This summer I put it on the charger as usual (in my screen room). After several hours smelt like a chemical burning. The battery was still charging. The case was molten plastic and swollen 30-40% bulging out. It was so hot I could not get close to it. It would have caught fire soon. Don't know what to recommend re my experience. I was the guy that bragged about these batteries. After this experience I would not leave this type of battery unattended when charging. I am so disappointed because I loved the performance. Half the weight of lead acid and maintains peak performance throughout the usage cycle.
Why Do LiPo Batteries Swell Up And What Are The Causes?
To add insult to injury I can not find a recycle center near my summer home willing to dispose of the battery.