You may want to consider heated gloves instead.From this post...View attachment 1645680
They keep your entire hands warm, including their back side that is exposed to the cold wind, vs just holding a warmer grip.
The install is easier too, as they just plug into a battery-tender pigtail from the battery.
And if you do go with gloves, ones with a thermostat are even better.
Where I ride there can be dramatic temperature variances within 2-3k' of elavation change.
So your hands can get hot, and you just unplug the gloves until they cool down...or turn the thermostat.