What matters where the battery located in your heated jacket?
When you are saying want to buy a heated jacket,the most important things is that the battery and where the battery located.I bet you don't even believe it.
Most heated jacket brand offer a huge battery and the most worse part is the battery location.It put inside your pocket, you notice all the time of the battery when you put hands in,and you walk around.
What? You don't put hands in pocket in cold winter?
There are some put in the chests,some put back in waist.
The right way to put is on the left or right of your waist.It get away from your pocket,and do not bother you when you sit down also.
But,you have to find a slim size of battery.Huge battery won't work anyway in any situtation.