 Batteries shall be charged at 0°C-45°C environment temperature specified in the Product Specification.

In case of environment temperature is lower than 10°C, batteries shall be charged with a little current (no larger than 0.5C).

If the environment temperature is lower than 0°C, charge shall be prohibited.

 Do not use or leave the battery at high temperature (for example, at strong direct sunlight or in a vehicle in extremely hot weather).

Otherwise, it can overheat or fire or its performance will be degenerate and its service life will be decreased

 Do not use the battery in a location where static electricity and magnetic field is great,

otherwise, the safety devices may be damaged, causing hidden trouble of safety.

 If the battery leaks and the electrolyte gets into the eyes, do not rub the eyes, instead, rinse the eyes with clean water,

and immediately seek medical attention. Otherwise, it may injure eyes.

 If the battery gives off strange odor, generates heat, becomes discolored or deformed, or in any way appear abnormal during use,

recharging or storage, immediately remove it from the device or battery charger and stop using it.

 In case the battery terminals are dirty, clean the terminals with a dry cloth before use.

Otherwise poor performance may occur due to the poor connection with the instrument.

 Be aware of discarded batteries may cause fire or explosion; tape the battery terminals to insulate them