Bought this for my nephew. First time he used it in the pool - He loved it - it's a lot of fun - he had a great time for about 20 min. We figured the battery had to be charged - when we tried to charge it the battery "popped" & didn't work any longer. I was sent a replacement. On his very first try it died - when his father tried to charge the battery it popped again the some of the acid seeped out. I returned it & got a refund. I don't recommend this toy.