Hello joe -- --
I went into the house and looked on that computer -- and found the place on the Web where I bought mine -- Here's the link:
http://www.brokenlegdave.com/Manufac...ge_battery.htm
There Statpower Prowatt 1000w is $209.
This will meet your requirements -- although I'd recommend for just a few dollars more -- their 1750 watt version at $ 281.
Tootles .......
OLDphoneman
Sorry how this post turned out -- must have been the link ....