Battery Heat Change Mug
In need of a recharge? Simply fill up this mug and watch your battery refill on your break!
The battery reacts to heat so changes colour once you fill it with your favourite drink. Makes for a great gift item, or why not treat yourself!
Make sure you keep your battery topped up for the whole day with this great heat changing mug!
Approx dimensions - 11cm x 8cm x 9.5cm