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FNDN 3.7V 3350 mAh BEGO Slim Spare Battery - 1pc

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  • About FNDN

3.7V 3350 mAh BEGO Slim Battery

FINALLY an affordable rechargeable spare battery for heated gear! Our single BEGO battery is one of the smallest 3.7V rechargeable batteries you can buy. This small footprint light-weight battery is encased in tough durable PVC shell.

This replacement battery is used for the following products:


  • FNDN Heated 3.7V Slipper Socks: 2
  • FNDN Heated 3.7V Sports Socks: 2
  • FNDN Heated 3.7V Liner Socks: 2
  • FNDN Heated Performance Soft Shell: 3
  • FNDN Heated Base Layer - Skin Fit: 3
  • FNDN Heated Hoodie: 3
  • FNDN Leather Heated 3.7V Work Glove: 2
  • FNDN Heated 3.7V Daily Glove : 2
  • FNDN Skin-Fit 3.7V Liner Glove: 2

At FNDN, we believe it's not about where you are, but where you are from.

There's an old saying that each generation is most like their grandparents. In our grandfathers' America - before the Internet, cell phones, and video games - our "greatest generation" was a well-oiled industrial machine running wide-open with the Motor City at the heart of it all. FNDN's foundation happens to be firmly rooted in Detroit and that same innovative spirit is part of our DNA.

Our products share that same mold our grandparents valued. The industry, the inventions, the manufacturing, and even the music has branded a loyal, patriotic, hardworking ethos into us. Combining quality materials, craftsmanship and utilizing cutting edge technology, we strive to create the finest products available that are both beautiful and functional.

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FNDN 3.7V 3350 mAh BEGO Slim Spare Battery - 1pc