My home-made battery box is my "don't leave home without it" item. It's 30 Ah from 2x 15 Ah thumper batteries, with dual USB and cig-out on top and at the back is a merit-in for the solar regulator. I have a 10w panel with 5m cable to keep it charged during the day. In the back of the jeep is the in-car charging by anderson plug with an anderson-to-cig adaptor. For days it keeps my Companion light strip going, charges phones, Mp3 players and bluetooth speakers no probs. The case is just a go-pro style pelican case which had foam inserts. My mate didn't want it any more and gave it to me, the batteries fit perfectly. In full sun I've had the voltage maxed at 14.5v coming in from my regulator off my 10w panel. Does the job:
and inside, all soldered and fused:
My other favourite thing is my Black Wolf Turbo Twin 240. It's up in minutes, awesome new style awning and side panel, less than $1000 all up with a lifetime warranty on the workmanship.