Using standard 5V 2A power banks:

The POLAR SEAL heated clothes are powered by an external 5V compact USB power bank (not provided) with an output of 2A or more (with USB-A connector) delivering 5,000 to 20,000 mAh, which you can procure online or from most electronics stores in your country.

Choosing your Power Bank according to your needs:

This open compatibility allows you to choose the power bank of your liking, in terms of brand name, size, capacity, color etc. There are multiple advantages:

• You choose the power bank that best fits your needs. For instance, if you use your POLAR SEAL heated clothes only for short stays in the cold outside, a light and compact power bank of 5,000mAh will be ideal. On the other hand, if you need to spend a long time in a cold environment, you will prefer a larger model with a bigger capacity of up to 20,000mAh.

• As power banks last only a couple of years, you are not tied up to a specific model.

If you set your buttons on two heating zones at a high level, your POLAR SEAL will heat you up for the following periods of time.

(Data subject to variation depending on the quality & age of the power bank)

If necessary, you can use the spare right pocket to store an extra power bank, thereby extending the heating time to a whole day.

Connecting the power banks:

You insert this power bank in the dedicated left pocket and connect it to the USB plug located inside the pocket. You need to remove the power bank from the pocket when you wash your POLAR SEAL.