Warmawear Battery Heated Insoles are powered by three AA batteries. Disposable battery powered products are generally substandard to rechargeable battery ones. This product is a good and inexpensive entry into electric heated insoles, but far from being the best on the market.
Warmawear’s insoles can be cut to any feet size (from US sizes 6 to 9). This makes each insole easy to place into any boots or shoes, while being customizable for any foot size.
Heating elements in these battery heated insoles run down the entire length of your foot. This is not the case with some other heated insoles, many of which only heat toes or instep area. Providing heating to entire foot is a big upside to choosing this product over others.
3 AA batteries power each of Warmawear’s electric insoles. These batteries typically can’t provide great heat, and standard disposable or rechargeable AA batteries will only last about 2 hours at most. Products with more powerful rechargeable batteries are always recommended.
Upside to AA batteries is that they’re inexpensive and easily replaceable, so you can always carry two or more sets of batteries if you need heating for a longer period. You will need a generic AA battery charger, as one does not come with this product.
Warmawear insoles feature a lengthy wire, allowing batteries to be placed at knee level. This is important in case you’re wearing ski boots.
Overall Warmawear battery heated insoles are a decent entry-level product. For this price you can’t get any other similar product. This makes them a good and relatively inexpensive way to try an electric heated solution for your cold feet.