The Transport T2300 has an internal battery that will run the laptop for several minutes after the main battery goes dead. This feature allows you to save your work and shut down safely. If you run the laptop until both batteries are dead, even a brand new battery can't start the unit again. You have to follow this procedure:
1.Unplug power cord
2. Remove any attached periphal components including the cd rom and/or floppy disk module if you have one. Both remove with a push button switch located on the bottom of the unit.
3. Plug in power cord and charge the unit for a minimum of 24 hours straight. 30 hours is better. This whole time will be spent slowly recharging the internal back up battery.
4. Once that is done, unplug power cord again and reinstall any floppy/cd drives. Plug power cord back in now and charge for at least 24 hours again.
If your backup battery is dead, you can't charge the main battery or turn the unit on. The longer you charge, the better. We had one unit here that had to be on the initial battery backup for 72 hours before it finally took hold. Then, one overnight recharge on the regular battery and all was well.
If you need drivers or manuals for the 2300, all are available on cd at firstname.lastname@example.org
for around $9.50 including shipping, handling, and owners manual