Safety Notice 4
The backup battery is a lithium battery and can cause a fire, explosion, or severe burn.
Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water.
Dispose of the battery as required by local ordinances or regulations.
Use only the battery in the parts listing.
Use of an incorrect battery can result in ignition or explosion of the battery.
Turn the computer upside down.