I'm curious about what you really gain with this lithium battery mod? I've been running my Aerco with internal 9V's connected as a backup, but using a lithium dvd battery connected as the main power source, and I've been able to run for an entire weekend festival without any concern for battery power. I see no benefit to this if it is only to get rid of using alkaline batteries. I've suffered no dropouts, noise introduced to my recordings, or anything negative in using it the way that I have been using it. It's not that much bigger a footprint in actual use, and much smaller that that big charger block for house power, just a wal-wart cord that plugs into the dvd battery for charging.