Waterproof Heating Mat with LiPo Heat Pack for Diving, Set 2

The waterproof heating mat for diving with 100cm x 30cm is fitted around the underwear of the divers dry suit. An assembled waterproof 9Ah LiPo battery pack is connected with a 4-step diver heat control which enables switching On and Off the heat mat under water. The heating time is nearly 2,5 hours at maximum heating power  (approx. 40W) and around 5 hours by half switched power.