Toshiba SATELLITE PRO S300M - Manual (Page 119)

119 Mobile Computing
Changing the main battery
If the battery is leaking or its case is cracked, put on protective
gloves to handle it, and discard it immediately. Always dispose of
used battery packs in compliance with all applicable laws and
regulations. Put insulating tape, such as cellophane tape, on the
electrode during transportation to avoid a possible short circuit, fire
or electric shock. Failure to do so could possibly result in serious
injury.
Inserting a charged battery
To insert a battery:
1 Wipe the terminals of the charged battery with a clean cloth to
ensure a good connection.
2 Insert the charged battery into the slot until the latch clicks.
The battery pack has been designed so that you cannot install it
with reverse polarity. Do not force the battery into position.
(Sample Illustration) Inserting the battery
3 Turn the computer right side up.
4 Reconnect any cables that were removed in step 3 of
“Removing the battery from the computer” on page 117 .
5 Restart the computer.