Up to ten hours total heat time on Maximum when you carry a Warmthru Battery spare
Warmthru Vezzoo and SuperVezzoo Vest - Spare Battery
A Warmthru Vezzoo or SuperVezzoo Vest Spare Battery can be discretely tucked away until required, when your main battery runs out. So if you are on a long motorbike journey, or hike, you can continue to stay warm with a fully charged spare battery at your disposal. Be aware, carry a spare!