Do not connect two poles of the battery with conductors, such as metal materials, keys, or jewelries.
Otherwise, the battery may be short-circuited and may cause injuries and burns on your body.
If battery electrolyte leaks out, ensure that the electrolyte does not touch your skin and eyes. When
the electrolyte touches your skin or splashes into your eyes, wash your eyes with clean water
immediately and consult a doctor.
If there is a case of battery deformation, color change, or abnormal heating while you charge or store
the battery, remove the battery immediately and stop using it. Otherwise, it may lead to battery
leakage, overheating, explosion, or fire.
If the power cable is damaged (for example, the cord is exposed or broken), or the plug loosens, stop
using the cable at once. Otherwise, it may lead to an electric shock, a short circuit of the charger, or a
fire.
Do not dispose of batteries in fire as they may explode. Batteries may also explode if damaged.
Do not modify or remanufacture, attempt to insert foreign objects into the battery, immerse or expose
to water or other liquids, expose to fire, explosion or other hazard.
Avoid dropping the device or battery. If the device or battery is dropped, especially on a hard surface,
and the user suspects damage, take it to a qualified service center for inspection.
Improper battery use may result in a fire, explosion or other hazard.
Promptly dispose of used batteries in accordance with local regulations.
The device should only be connected to products that bear the USB-IF logo or have completed the
USB-IF compliance program.
CAUTION – RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.
Cleaning and Maintenance
The battery and charger are not water-resistant. Keep them dry. Protect the device, battery, and
charger from water or vapor. Do not touch the charger with wet hands. Otherwise, it may lead to a
short circuit, a malfunction of the device, and an electric shock to the user.
Do not place your device, battery, and charger in places where they can get damaged because of
collision. Otherwise, it may lead to battery leakage, device malfunction, overheating, fire, or explosion.
Do not place magnetic storage media such as magnetic cards and floppy disks near the device.
Radiation from the device may erase the information stored on them.
Do not leave your device, battery, and charger in a place with an extreme high or low temperature.
Otherwise, they may not function properly and may lead to a fire or an explosion. When the
temperature is lower than 0°C, performance of the battery is affected.
Do not place sharp metal objects such as pins near the earpiece. The earpiece may attract these
objects and hurt you when you are using the device.
Before you clean or maintain the device, power off the device and disconnect it from the charger.
Do not use any chemical detergent, powder, or other chemical agents (such as alcohol and benzene)
to clean the device and the charger. Otherwise, parts of the device may be damaged or a fire can be
