My G650GS has an AGM Battery. I have the little plug on the side for a tender. It’s a good battery. I put it in the shed just now, which is a good distance from the house. First snow. If I do not *want* to take the battery out, is there a decent portable power pack tender? Or just get a power pack and plug in a tender? I might want to use the bike and soon a buddy is going to take it for while to service it for me. That is why I don’t want to remove the battery. solar looks like too much work. let me know what you’re doing Thanks!!!