Metalsub Cable lights and umbilical dive torches have a myriad of different battery options, but basically the larger the longer the burn time. So you need to ask yourself what you want from a dive torch - do you need a long burntime for cave diving or perhaps even the fact that you can't get back to base to charge it between dives?
All 12 volt. Ranging from 4 hours to 13 hours. The Metalsub 13 Hours battery tanks has the option of either a single connection (PR1313-1) or dual connection (PR1313-2). 4 amp hour. NiMH battery Fixed mounting bracket included
Please note that the Metalsub battery pack PR1204 does not come with the detachable pony clamp. If you would like the detachable pony cylinder clamp then you need to purchase either the PR1204 or above.