External charging station for Fujitsu batteries.
Keep your laptops running all day by having fully charged batteries ready to go.
Here is a practical battery tech tip when hot swapping computer batteries: Your laptop will not be able to recharge a computer battery unless the battery is present inside the laptop during a cold boot start-up. This is when the laptop identifies that a new battery has been installed and electronic handshaking takes place.
You can "hot swap" a fully charged battery from your charger into the laptop without rebooting to save time. Just remember, the laptop wont recharge that battery when you plug in the laptop to it's power cord until the computer is rebooted or restarted.

This battery works as an additional battery in these Fujitsu Lifebook models: