My wife has both types of gloves and she likes the battery the best as when she gets off the bike her hands stay warm, the grips keep one side warm and the gloves keep the back of her hands warm, she keeps them on med. and they last all day, we rode a polar bear run on New Years day and it started out at 28 and never got above 40, we started at 9:00 am and rode till 4 PM. She also rides with a heated jacket and pants that are wired to the bike , I installed a jack on her RT and it only took several hours to complete.