Jornada 820 battery repair experiments

Just a little update and a mostly happy ending to my 820 battery modding: After soldering in the 4000 mah batteries, I have not charged the thing since September 12th and have used it a little bit--office stuff, reading, and little games-- every day since. It's still over 60 percent full! The occasional bogus 30-minute warning is a small price for this kind of endurance.