Built-In Rechargeable Battery Notice - Lenovo YOGA Chromebook C630 User Manual

DANGER
During electrical storms, do not perform any replacement and do not connect the telephone cable
to or disconnect it from the telephone outlet on the wall.

Built-in rechargeable battery notice

DANGER
Do not attempt to replace the built-in rechargeable battery. Replacement of the battery must be
done by a Lenovo-authorized repair facility or technician.
Only recharge the battery strictly according to instructions included in the product documentation.
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YOGA Chromebook C630 User Guide