Thinking about battery backup and looking at the MS-PAE inverter/charger? Watch this great overview video from the folks at Alt-E Store. Then, want to know more? Visit the MS-PAE page.
Video link: https://www.youtube.com/watch?v=k98geXy5k-E
MS-PAE page: http://www.magnum-dimensions.com/product-inverter/4400w-48vdc-pure-sine-inverter-charger-ms-pae