Prompts: It is suitable for 21700 flat-head cylindrical lithium batteries, with a length of 70mm and a diameter of 21mm.
important:The battery must be installed from the positive pole, then the negative pole! To disassemble the battery, it must be disassembled from the negative pole, and it is forbidden to disassemble from the positive pole of the battery!
Description
The battery slot is equipped with a PCB main board, including insulating posts,string for easy battery removal, and the positive and negative B+B- solder joints are reserved for easy use Specification:Product model:21700 Battery holder;Material: PC+ABS;Metal material: stainless steel;