Sorry for getting back to you so late, thanks for this information. Very helpful.
The Charger is the Voltz 101K. I actually just ordered one today.
It sounds as if I'll be able to draw continuous amperage from a battery (or batteries) needed to sustain 1000watts. I'll take a look at the threads you've attached for more information. Do the deep cycle batteries you use offer a continuous amperage spec? Otherwise, I'm not sure I understand how to calculate sustained watts. Can you suggest a 12v and/or 24v deep cycle battery?
Also, would a 120amp hour battery supply approximately 120,000 milli amp hours?