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• 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
• Do not subject battery to extremely low air pressure that may result in an explosion or the leakage
of flammable liquid or gas
IP Rating
Notice to the User: Regulatory content can also be viewed on your device. To view the content:
Settings > About FB523 > Regulatory Info
Model FB523 has a water ingress rating of IPX3 under IEC standard 60529, which indicates spraying
water shall have no harmful effects.
Model FB523 has a water resistance rating of IPX6 under IEC standard 60529, up to a depth of 50
meters.
Safety Statement
This equipment has been tested to comply with safety certification in accordance with the specifications
of: IEC 62368-1: 2014, EN62368-1:2014 + A11:2017, BS EN62368-1:2014 + A11:2017.
Regulatory Markings
Device regulatory markings can be viewed on the back of your device by removing the band. Additional
markings are located in the band attach area.
Band Pocket View
Back View