Purchased 02/24, I installed it on a Daytona DY 125 moped. After 6 months, it showed the first signs of fatigue; it didn't have the power to turn the starter. I charged it and continued to use it on the bike, but I started it with the kickstarter instead of the electric starter to keep it as rested as possible. When a year passed, it only had enough power to turn the starter once, and then it would drop. I went to the shop where I bought it, they measured it, the dynamo was charging it properly, and they said it still had plenty of life left, not at its end, but in practice, it was done. In conclusion, I replaced it 07/25 and the new one (different brand), I press the starter and it works perfectly. Apparently, this particular battery has many defective units because I see from other comments that for some people it lasted several years, while for others like me, only 6 months and after a year it was off.