12w USB step-up Charger Cable compatible with <12w Heated Jacket (only 4mm diameter jacket connector in the market )
USB Heated Jacket Charger Cable can step-up your Power Bank 2.0A USB outlet from 5V to 8.4V
Make sure you connected Power Bank USB outlet >2.0A. IF USB outlet <2.0A and heated jacket cannot working
FIT Kobalt Smarkey and most of 7.4v or 8.4v HEAT JACKET! NOT FIT Metabo / Milwaukee / Makita / Snap-on / Craftsman / AEG 12V HEAT JACKET! (As connector size and voltage is different)
IMPORTANT>> make sure your jacket connector diameter is 4mm, otherwise your jacket connector cannot insert 8.4v outlet