I have the fancy Ipilot link remote with the rechargeable battery rigged new in 2018. Never really gave the battery a second thought but this year I found it to be low on charge so i had to keep it plugged in while running. Previous outing I left it plugged in to charge overnight while the batteries charged. Unplugged the next morning and parked in storage. About 2 weeks passed and decided to get out fishing. This time I knew I wanted to be sure it was working so I snagged it out of the boat and sure enough, dead as a doornail. Would not even fire up unless plugged in so I charged it in the truck on the way to the lake. An hour later still charging so I ran with it plugged in most of the day. Took it with me in the truck and plugged in to top off. Left it sit overnight and still shows full charge. I see that the batteries are available and plenty of reviews so they must be selling a bunch, but 3 years out of a lithium ion battery? That's pretty sad. These units have only been out since 2018 from what I have seen.
Deep down I guess I know that I need to order a replacement, but the fact that it held overnight gives me pause. Do these things play possum or is the writing on the wall and just replace?