Vietnam
Model FB421
Model FB423
About the Battery
This unit contains a non-replaceable internal lithium-ion battery. The battery can
burst or explode, releasing hazardous chemicals. To reduce the risk of fire or burns,
do not disassemble, crush, puncture or dispose of in fire or water.
CAUTION: Risk of explosion if battery is replaced by an incorrect type. Dispose of
used batteries according to the instructions.
• The battery must be recycled or disposed of properly
• Use the battery only in the specified equipment
• Do not leave the battery in an extremely high temperature environment that
may result in an explosion or the leakage of flammable liquid or gas
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