I run a 12 volt SLA cause, more than anything, I'm used to them. I have a 7ah that will give me all the recording time I could want.....I tried the RC pack thing and just wasn't comfortable with it.
I kinda got suckered into Sla as my first real taping gig is going to be a 3 day fest (which I have added up to be taping about 9-10 hours worth running power to a UA5/Jb3 .
SO I figured I would go Sla as they dont make a big enough Rc pack to handle that kinda usage on a single pack, and I didnt want to keep track of which Battery I had used the day before or having to try to recharge them at the fest. Or just buying 3 of the suckers at 20+ bucks a pop
I picked up 2 12v7Ah Sla's of a Ebay for $7.15 a piece +$7.50 shipping and snagged a 12v1Ah Charger from batterymart.com
Which was much cheaper than I could get Rc packs and a charger for.
I would like to be able to run both the Jb3 and the Ua5 of the same Sla for 2-3 hour shows. But we'll see if that is possible
Thanks for the help
Nick