Martinjmpr
New member
I looked into those, and it seems like most of them don't have any protection against overcharging the battery. It's usually limited by the fact that the current is very low, but if you get one that's too big it could overcharge the battery, which will damage it over time. I didn't want to risk it, so I use a plug-in trickle charger as needed. Even that probably isn't the best for the battery since the voltage is a bit higher than I would like, but occasional use shouldn't hurt it.
A plug in trickle charger will not harm the battery. I've been running a Battery Tender on 3 different motorcycles for about 7 years now, with no ill effects (and motorcycle batteries are much more sensitive than car batteries.) I got the battery tender because I was tired of replacing MC batteries every 3 - 4 years (which used to be the norm.) Since I started using a battery tender I have yet to replace a motorcycle battery.