For the first use of the lithium iron battery, the number of charge and discharge cycles exceeds 3-5 times, and the first 5 times of discharge should not be less than 20% of the capacity (for example, the total discharge time is 100 minutes, and the charge is performed after 78-80 minutes of discharge). The charging time is not less than 8 hours. (It has been tested that the 3D lighting of CSM360 with full power can last for more than 90-100 minutes)
If the battery is not used for a long time, the battery should be removed or the flashlight cover should be loosely disconnected, and kept charged once a month, keep the battery in an activated state, and keep it well ventilated, otherwise the battery will be automatically scrapped due to self-discharge for a long time.

Lithium iron battery, choose 3.2V, if you use 3.7V rechargeable battery, it will be damaged; other batteries should be selected according to the nominal value; do not mix and charge batteries of different voltage values ​​at the same time, otherwise it will be damaged.

Do not mix other batteries of different voltages, types and capacities for simultaneous use.
'L-M-H' corresponds to charging current "low - medium - high", please select "L" (recommended)
The following are the precautions and specific methods for the use and maintenance of the flashlight:

1. Dry with a soft cloth immediately after using the flashlight to prevent the use in rainy and snowy days or the infiltration of moisture and hand sweat. Otherwise, the coating of the flashlight is easy to peel off or rust.

2. Usually do not put the flashlight on the hot kang or beside the stove, and avoid soot fumigation, otherwise the flashlight will easily run off.

3. When moving the flashlight switch, the force must be light and even to maintain the elasticity of the lift spring.

4. The bottom cover is opposite to the light bulb. When it is extinguished, the battery should be loosened or taken out, so as to prevent the bottom cover from breaking the bottom of the battery and flowing out the slurry.