DIY Power pack for strobe lights

So.. I decided on making a little power kit for myself with enough "oomphh" to power my 320W AlienBee 800 light with over 400 full power flashes or two AB800 with about 250 shots at full power.

I managed to come up with the following, all together this kit set me back $190 which is cheaper than buying an already made unit which isnt as powerful.

1 x 600W/1200Wpeak pure sin wave inverter

1 x 12V20AH deep cycle battery

1 x 12V battery charger @ 1.5AH charge (will charge the entire battery overnight)

This has since been upgraded to include an external fuse and main switch just make it safer/easier.

First tests with the power kit connected to one AB800 light showed great results with the flash however the recycle duration is a little longer than i prefer none the less it now allows me to be more mobile with my flashes.

Test shot

Canon 5d with 70-200 2.8 at 90mm.

B+W 0.9 ND filter