On Tue, Apr 5, 2016 at 1:57 PM, robb <sf99er@gmail.com> wrote:
so all we need is a decent 12v deep cycle battery & a "self locking" cylinder.

What's a self-locking cylinder? Can someone please figure out which 12v battery to buy and provide me with a link? Remember that it should be small enough to fit in the current enclosure.