Toshiba TECRA M9 - page 243

4.2 Battery pack 4 Replacement Procedures
TECRA M9 Maintenance Manual (960-631) [CONFIDENTIAL] 4-9
Installing the battery pack
The following describes the procedure for installing the battery pack. (See Figure 4-1.)
CAUTION: There is a danger that the lithium ion battery pack may explode if not fitted,
operated, handled, or disposed correctly. Dispose always the used batteries
pack in accordance with the laws and ordinances of your local authority.
Use only the batteries approved by Toshiba.
NOTE: Check visually the battery terminals and clean off any dirt with a dry cloth.
1. Turn off the power of the computer.
2. Disconnect the AC adapter and all other external devices from the computer.
3. Install the battery pack into the battery slot. Make sure the battery pack is installed
securely.