Yep that's the charger, and am using true 9.6, or so it says on the battery.
By the way, that same battery that was 2v, after 20 minutes, was 10v before the show, and I charged it the next day, and sure enough a solid green light and 10v+ on the meter. How can I tell if will fail again? Can't.
The other issue I'm experiencing is volume fluctuation, like a cavatating, with the rechargeables. For about a second, the volume drops by 50%, then resumes, then in another 5 minutes, another drop out. This is not a cord issue, as I've recorded a couple hours of pre-recorded music using my same cords, and the issue does not occur with regular batteries.
What is maddening, is I really have to assume that when the light is green, the battery is 10v+; and I have to further assume that after I test it, and it is indeed 10v+, that it will hold that voltage for an 90 min or so. I don't know why in three months, I've been so hexed with this damn things, but I do mainly stealth, and I can not sit there and watch the Edirol. I really have to, in the word of Ron Popeil, set and forget it.
I'm ditching the Maha charger and rechargeables. I figure a land fill is a good place for these green carbon footprint saving rascals.