Not a lot to say about this one. I swapped out the original 12V SLA for 3 x 12v lifepo4 batteries in parallel.
This worked out excellent! The booster pack was way lighter and has much more usable power. I was able to power the LED TV and Blueray player for about 3 + hours where previously it would just alarm out and fail.
In an experiment where I foolishly tried to backfeed the power to a small bunko I ended up blowing the inverter.
Version 2 will have a bigger enclosure with a larger inverter along with a Renogy solar controller for the complete DIY power station.