battery or charging

Hello, I wanted to post this one for a long time but never got a chance. My battery on my 2015 went kaput around 2019. All the new battery options I was looking for only had 6 months warranty. So I made my own and it’s been awesome. the battery cells are 38120HP cells which have amazing power...

I suspect I have a battery problem. Before I replace it (was considering a Panasonic-type SLA), I would like to get some input from you guys. First, the bike has run fine for years on this same battery, but this season, the bike has killed a time or two and would not restart due to low battery...