Carviya Winter Motorcycle ATV Scooter USB Heated Grips Handlebar 7/8"-11/5"(22-30mm) Warmer Sleeves with Switch to Control Temperature

I tried it first with a normal 1 amp charger and the heat wasnt good then test with a 30watt charger and it charged instantly with good heat. so a proper charger is required for proper heat. A good bike charger is required. I tested in mobile charger.

As it works from a USB port I actually ran this from a powerpack in my jacket pocket. It worked fine for my 2 hour ride. It doesn't get very warm but there is enough heat on a cold day to stop your hands getting cold. It may generate more heat if it is drawing from the bike battery but for the price I am happy with it. It could do to be a bit bigger circumference wide.

Doesn't really heat through the gloves, also on high heat the main unit switches off too frequently. With bare hands the grips feel fine but once you put the gloves on it feels too chunky, theredore the throttle response is different. The heated pads are NOT slipping on the grips if installed properly.

It's missing the temperature control switch

Don’t work