Yep. It's possible, and sounds like a fun project.
I know I'm behind on the sigs, but work's been kicking my 

, and if they would let me have a Saturday off, I could get caught up.
Sunday was my R&R day. Spent it raking leaves and winterizing the house and truck. 

 New wipers, battery, and an ice scraper. 
After you buy a Duralast Gold deep cycle battery, prices on AW 18650's don't seem quite so bad. 

 I'm just happy both 
batteries weren't bad.