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Improper battery use may lead to fire, explosion, or other
hazards.
Dispose of used batteries in accordance with local
regulations.
Do not smash or pierce the battery, or expose it to high
external pressure. Doing so may lead to a short circuit or
overheating.
If the battery is improperly replaced, it may explode. Recycle
or dispose of used batteries according to local regulations or
refer to your device instructions.
If the device standby and talk time shortens significantly,
replace the battery.
Operating environment
Avoid dusty, damp, or dirty environments. Avoid magnetic
fields. Using or charging your device in these environments
may result in circuit malfunctions.
Do not use your device during thunderstorms to protect your
device against any danger caused by lightning.
Connect the device only to products with the USB-IF logo or
with USB-IF compliance program completion.
Observe local laws and regulations, and respect the privacy
and legal rights of others.
Avoid touching the antenna when you are on a call.
Touching the antenna affects call quality, increases power
consumption, and reduces talk and standby time.
Ideal operating temperatures are 0°C to 45°C. Ideal
storage temperatures are -20°C to 60°C. Extreme heat or
cold may damage your device or accessories.
Do not expose your device to direct sunlight (such as on a
car dashboard) for prolonged periods.
Do not place your device or batteries on or in heating
devices, such as microwave ovens, stoves, water heaters,
or radiators. Batteries may explode if overheated.
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