I have been using sealed batteries for years without any problem. A friend told me recently to not use them anymore as the sub could build up hydrogen gas (from charging) and explode. He had told me this had happened to him whilst the sub was underwater and underway. All of my boat (surface craft or otherwise) are using these types of batteries and I have had no trouble with them. Is he all wet? (so to speak)

Pete Olson

There are two types of ships: submarines and targets