Precautions
1. The power base of this product is precision equipment, so if you leave it in a humid place and store it in a place with a lot of humidity, the parts such as the springs of the battery box may rust and become easy to remove.
2. Please do not mix new and old batteries with different types or batteries.
3. When installing the battery, please install it correctly according to the corresponding + polarity and -pole.
4. If the product is missing parts, if there is any problem with the product, we will always be able to provide proper support for any questions.