Great idea. I just replaced the reachargebale batter in my 25 year old coleman air matress pump. Now I am going to copy your coller and use it every outing.!View attachment 1429592
Kinda neat piece I just got finished. It’s an air mattress pump 40psi. I took a couple sized .223 cases and put in my lathe and took of head off the case and inserted and glued. Makes a nice barrel cooler.