Spare Battery

Having a spare battery means always having warm hands. The charger allows you to charge two batteries at the same time. I did that the first time and since then I’ve been charging one battery at a time because the other one is always busy keeping my hands warm. You definitely want a spare battery.

To maximize your enjoyment get a spare battery to extend high setting
Makes playing golf in cold weather enjoyable

Got a spare battery for the handwarmer and was pleased to see they upped the capacity from 4000 to 5000 mAh over the original battery.

A very effective handwarmer. The pouch is comfortable to wear, not too bulky and heats up rapidly after power up. A great asset for the cold winter months for just about any activity outside!

The charge life of the GTech batteries is incredible to begin with, so I haven’t needed the spare yet. But the warmer itself has saved my behind multiple times already. So, if I ended up needing the spare battery, it would have to be very cold, thus being hugely vital! An absolute must buy when getting a GTech warmer.