How does the charger know the battery pack is charged?
The Charge-N-Run PDA Charging System is micro-processor controlled. It constantly is checking the battery charge level when your PDA is in the cradle. When it detects a change in the charge state it starts the charge cycle. Even if you leave your PDA running on the cradle, it will sense when the battery pack needs charging and start charging. A great feature for those who need their PDA turned on overnight for modem or other data logging capabilities.