The heated grips at Rocky Mountain ATV/MC seem to be a hot item! Can't answer the other question but be careful running all that. The battery can't keep up with all that running on high. I seem to remember an inmate running gloves on high and a vest on low and having success but not pants too. I think that will be too much. Kind of a tapping noise? I may have the same problem. I'll be pulling mine apart in the next week or two to take a peek inside.