Not mine, but I thought I'd pass this on to the diy community -
http://www.excess-solutions.com/BATTERY.HTMHalfway down the page, Item ES2733 Access Power System
You can download the PDF for a complete description.
quite a bargain considering the 4 12V 7A sla batteries would cost you more that the $25 (the shipping charges are gonna double it, if you ship them the the East Coast), and it includes the charger and chassis.
You'll need a 4pdt switch/relay to configure it from 48v for charging to 2 separate 24 volt supplies, or an 8pdt to configure as 4 separate 12v supplies.
Now here is the catch..... If you order these, I'd like you to donate some money to the AudioCircles when we have our next fundraising. As I've never seen anything like this for less than $200+, I don't think generous donation would be out of line, determined by your own integrity.
