First outing yesterday for my little remote switch and battery distribution system that I cobbled together from bits I've had lying around for a year or two. The remote switch and voltage display clips neatly into a Petrol pouch and the wiring runs into the bag to my Tracer LiPo 10Ah battery and a simple, fused four-way Hirose distribution box. (I found the blue Deltron box on Ebay as part of a set of five for £10 - I'm keeping a couple of the others, but in anyone in the UK wants one or both of the remaining two for a couple of quid, let me know.)
Battery input to the remote switch is via a 4 pin XLR and from the switch to the distribution box, a locking DC barrel connector. The main switch is on the side of the box and is recessed when in the on position, so it can't be accidentally knocked, and the voltage display is checked via a momentary switch.
I'm going to add a strip of ND to the side of the box with voltage display, just to make it look a bit neater as the box got a bit beaten up when I was making the rectangular cut-out, which was the most difficult part, even with a Dremel.
The whole thing works very nicely and the battery gives me over six hours powering a 744T and my Soundfield ST450. A very satisfying little project that kept me occupied during a week of theatre producer nonsense.
All the best,
John