Long-lasting Power. Long-lasting Heat: If you need power that will last for hours, nothing is as reliable as VentureHeat's 602 Lithium Battery. Good for up to 500 charges, this lightweight power source can produce heat for up to 5 hours. And that's just on a single charge.
Good for up to 500 charges.
Can produce heat for up to 5 hours on a single charge.
NOTE: Compatible with 7.4 volt VentureHeat accessories only.