What kind of battery type is used in the pick to light electronic label SETP_Label_V3?

This pick to light electronic label SETP_Label_V3 uses a lithium metal battery pack, which is not waterproof. The battery pack is 7.5cm long, 2.5cm wide, and the cable is about 8cm long. The battery capacity is 1800mAh. The battery life depends mainly on the frequency of lighting and screen refresh. Generally, if the screen is refreshed less than 3 times a day, the battery life is about 1 year.