My extended battery arrived yesterday and I can happily say that for the first time, I have an extended battery that works as advertised, charges correctly without all of the monkey-business of unplugging the OEM and plugging the extended in, nor the weird flashing led lights. This battery work great, charges great, and I am a happy customer. I previously bought and returned two other extended batteries for my Dell Mini9 and I could neither charge them plus the leds would flash rapidly back and forth. None of those problems with my extended battery from MDD. The only minor downside is that my screen will not open quite as far as it does with my Dell OEM battery, but I think that is simply a tradeoff due to the design of the battery pack. I think this is probably true of all extended battery packs for the Mini9. Thanks MDD for a great product!
Running A04 on Dell Mini9 with OS X 10.5.8