Feet don?t just get cold when you?re close to home. Bring the warmth of the indoors outdoors?wherever you are?with the Heated Insoles Car Charger. Now all you cross-country skiers hunters and hikers who forgot to charge your ThermaCELL Original Heated Insoles before leaving the house can rest easy. Charges in 4 hours or less Charges 2 batteries at once Green LED indicator light when fully charged Charge last up to 5 hours Input: 12/24 VDC