Canon HF M31 - Manual (Page 184)

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Additional Information
• Secure Digital (SD) memory cards
have a physical switch to prevent writ-
ing on the card so as to avoid the
accidental erasure of the card's con-
tent. To write-protect the memory card
set the switch to the LOCK position.
Built-in Rechargeable Lithium Battery
The camcorder has a built-in rechargeable lithium battery to keep the
date/time and other settings. The built-in lithium battery is recharged
while you use the camcorder; however, it will discharge completely if
you do not use the camcorder for about 3 months.
To recharge the built-in lithium battery: Connect the compact power
adapter to the camcorder and leave it connected for 24 hours with the
camcorder off.
Lithium Button Battery
• Do not pick up the battery using tweezers or other metal tools, as this
will cause a short circuit.
• Wipe the battery with a clean dry cloth to ensure proper contact.
LOCK switch
WARNING!
• The battery used in this device may present a fire or chemical burn
hazard if mishandled.
• Do not disassemble, modify, immerse in water, heat above 100 °C or
incinerate the battery.
• Replace with a CR2025 battery made by Panasonic, Hitachi Maxell,
Sony, Sanyo, or with Duracell2025. Use of other batteries may
present a risk of fire or explosion.
• Do not insert the battery into the mouth. If swallowed, seek medical
assistance immediately. The battery case may break and the battery
fluids may cause internal injuries.
• Keep the battery out of the reach of children.
• Do not recharge, short-circuit or insert the battery in the wrong direc-
tion.
• The used battery should be returned to the supplier for safe disposal.