Lenovo ThinkPad 390E Hardware Maintenance Manual (March 1999): ThinkPad 390E o - Page 79

Backup Battery (RTC), IBM or IBM Authorized Dealers.

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Backup Battery (RTC) "Battery ASM" on page 62 "Modem Card" on page 68 Safety Notice 4: Translation on page 7 The backup battery is a lithium battery and can cause a fire, an explosion, or severe burns. 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 of an incorrect battery can result in ignition or explosion of the battery. Replacement batteries can be ordered from IBM or IBM Authorized Dealers. Use your thumb first to pull out the backup battery (RTC). ThinkPad 390E 69

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Backup Battery (RTC)
±
“Battery ASM” on page
62
±
“Modem Card” on page
68
Safety Notice 4: Translation on page 7
The backup battery is a lithium battery and can cause
a fire, an explosion, or severe burns.
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 of an incorrect
battery can result in ignition or explosion of the
battery.
Replacement batteries can be ordered from
IBM or IBM Authorized Dealers.
Use your thumb first to pull out the backup battery (RTC).
ThinkPad 390E
69