Remove the batteries. Turn down the regs so pressure isn't on the reg seats (could leave dents, might not seal properly after that long). Keep them in a cool, dry place, away from heat sources or direct sunlight. Keeping them cool and dry is the main thing, so wires & wire connections don't rust. And grease up your o-rings right before you leave, hopefully that'll keep them from drying & cracking. When you get back, clean the internals and re-lube again.
Be safe in your travels, bro.
Last edited by nerdcore : 01-17-2013 at 11:46 AM.