Sign up for an Award
Participate with your entry in one of our professional or student awards.Sign up for an award
You are using an outdated browser. Please upgrade your browser to improve your experience.
This is a rechannge button battery,it can stack up, and it can also be arbitrary combination. It accumulate together can become ordinary number five or seven number battery.This button battery can fold together with the existing charger to charge it up.Hexagon appearance also can prevent it tumbled. The green grooves on the surface make whole design lively. Many button battery fold together can not only save a space but also convenient to receive.
Yang,Bi Yangyang,Zhou Jinghe,Zhang