Waterproof Heating Mats with LiPo Heat Pack for Diving, Set 4

The waterproof heating mat for diving with 40cm x 30cm plus 2 mats with each 30cm x 20cm are 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 1,5 hours at maximum heating power of approx. 70W @ 11,1V and arround 3 hours by half switched power.