Wow it pays to check FB Marketplace sometimes. I need a new battery for my shed solar setup since that battery got used to replace a dead one in my UPS, so I put the dead one in the shed, but it's VERY dead so it won't last more than a minute if the solar stops producing. Someone selling a 200ah gel one for $30. I normally would not use a gel cell for this type of application but at that price I figure it will at least get me through until I get a proper setup. I really need to look at a properly vented box with cooling though, as this heat will kill that battery in a matter of days. Gel cells don't do well in high heat as they swell up and vent, and you can't really add water.