The best cordless heaters are reliable, easy to set up and provide enough heat output to warm up a small-to-medium-sized area ...

With USB charging and multiple temperature levels, these compact hand heaters keep my palms and ... After all, a hand warmer is basically a big rechargeable battery that puts out heat.

Ditch the disposable hand warmers and get this rechargeable model which can warm ... decide whether they want more intense heat or longer battery life. Each charge provides hours of operation ...

This lozenge shaped device is not only a USB power bank that can keep your mobile devices topped up, but is also doubles as a miniature heater that ... until the 4,000 mAh battery runs down.