If battery-heated clothing is not already a big thing in cold climates, I expect it soon will be.
The same recent advances in cost/density that make BEVS practical also apply to other uses.
Sounds like a good deal, includes battery and charger:
Model # 201G-21XL Internet #207170946 Store SO SKU #1001848969
Milwaukee Extra-Large M12 12-Volt Lithium-Ion Cordless Gray Heated Jacket Kit
Extra-Large M12 12-Volt Lithium-Ion Cordless Gray Heated Jacket Kit...
Extended run time for productivity
M12 system features 100+ tools
$99.00 /each (limit 5 per order)
Save $100.00 (50%)
Online Exclusive Special Buy of the Day
https://www.homedepot.com/p/Milwaukee-E ... /207170946