Two black battery packs, one standing to show its USB port and one lying to show its label side 1
Brushed dark battery pack on a beige surface beside a folded jacket and a smartphone, with feature icons 2
Brushed black battery pack standing upright, with callouts for the round output jack, USB-C port, LED indicators and power 3
Man in a dark hooded jacket on a mountain slope, battery in pocket, heating panel glowing orange 4
Close-up of a hand sliding the battery pack into a jacket zipper pocket, cable plugged in 5
Man in a black jacket on a rocky shore tucking the battery into his pocket, orange warmth glowing on his sweater 6
Battery pack connected by a cable to the pocket of a black fleece heated garment, with callout labels 7
Two brushed gray battery packs on a concrete surface, one leaning upright and one lying flat, with dimension arrows 8
Two black battery packs with rear labels shown, next to a coiled black USB charging cable 9

4,7/5

Power bank pair for heated socks, 3.7 V / 2 A, 2 x 4,000 mAh

$44.99 Regular price $73.99 Sale priceSave 39%
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Warm feet need power on both sides. This powerbank set gives each sock its own 4,000 mAh battery, so both feet stay evenly warm.

What's included

  • 2 x 4,000 mAh: 8,000 mAh total for long days outdoors
  • 3.7 V and up to 2 A per battery: made for heated products with a 3.7 V system, such as heated socks
  • Compact and light: it slides right into the sock's battery pocket
  • Safety circuits: protect against overcharging, overcurrent, and short circuiting
  • USB charging: at 5 V / 1 A, and the charging cable is included

Good to know

Designed for use with heated socks. Use only with compatible heated products that work on a 3.7 V system, because the connector is made exactly for that.

Frequently asked questions

Do the powerbanks fit in my heated socks?

They are made for heated socks and other heated products with a 3.7 V system. Do not use them with other systems.

Why two powerbanks?

Each sock gets its own 4,000 mAh battery. That way both feet stay evenly warm.

How do I charge the powerbank?

Via USB with 5 V / 1 A. The charging cable is included.

Technical specifications

  • Capacity: 2 x 4,000 mAh (3.7 V nominal), 8,000 mAh total
  • Output: 3.7 V / up to 2 A per powerbank 
  • Input: 5 V / 1 A via USB
  • Connector: for compatible heated products with 3.7 V

In the box

2 x powerbank (each 4,000 mAh), 1 x USB charging cable

We strive to make the ordering and delivery process simple.

As soon as the package has been shipped, you will receive the shipment tracking. You can return your order 14 days after receipt. Put the products in the shopping cart and follow the steps for payment and shipping.

Always check your details. All shipments are free and we cover the shipping costs. We guarantee a secure payment environment with SSL encryption. US customers can pay with Credit Card. If you have any problems, please contact our customer service.

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