Late last winter I bought a lithium battery for my Vexilar FL18. I only used it a couple of times for a short period.
On Friday, I charged the battery and ran up to Red Lake. After an hour of run time it died on me. I came back home and have charged it three different times with the same results. The very last time I watched the battery indicator start at 100%, and when it hit 62%, it shut off.
I didn’t have this problem with my old, non lithium battery.
What do you think, defective battery?