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So far, I have been happy with the stock battery on my Sportster Forty-Eight. The bike was bought new in August this year. However, as I have a satellite tracker on the bike, this uses up some of the battery. It is not a problem as long as I ride at least every other week. If I know I will not be using the bike for longer periods of time, I hook the battery up to a charging station made for motorcycle batteries. This monitors the battery status and charges as necessary.

Sure, I also disconnect mine in those cases. Nevertheless, the Motobatt I mentioned is gone now. It still had 12,4V but not enough power to start the bike. Probably due to some issues a couple of months ago: one of the contacts had burned and melted which obviously caused internal problems for the battery. In case you will get a Motobatt battery at one point in the future be aware: the contacts need to be installed manually and have to be very tight. Otherwise they might burn the battery.

Thanks for sharing this advice! 👍