I would prefer to have a heated jacket or vest made with good quality that uses a universal USB battery adapter instead of being forced to use a proprietary plug for a specific brand, forcing us to buy the expensive replacement batteries.
No proprietary plug on Milwaukees. Standard 12v DC round plug. I’ve seen multiple other battery/tool brands with the same plug. People have also made homemade battery packs for them as well.
I got the Milwaukee Jacket through work, wear it every day and only put the battery in on the crazy cold days. Maybe 10 times so far this winter. Works awesome and love the heated hand warmers built in to the pockets. Just wish the put a heat pad on the underside of the wrists to help keep hands warm.
“He loved it except for the fact that the battery sat right in the lower back.”
That was my first complaint as well until I realized there was a pocket inside the pocket, place the battery inside that and the battery sets just perfect along your body where you hardly notice it.