Warmthru Heated Gloves WT2 Gloveliners, with Li-ion Battery - WarmToTheBone Ski Great heat! Comes complete with everything you need. Battery pocket on top of hand, additional armbands and pockets (to place the batteries anywhere on your arm available) 2x 3.7V rechargeable batteries with adjustable panel switch & charger. 4 hours heat per battery in continuous use. One-size-fits-all.