Scienticy Battery Holder for Lithium-Ion 18650 2 Cell with Cover and On-Off Switch Power Supply Electronic Hobby Kit

Scienticy-In this 18650 x 2 holder, 3.7V batteries make a series connection inside the case to provide 7.4V combined output. A fully packed cover with locking provides protection to the battery cell from environmental effects. Another bonus is the ON/OFF switch which can be used to control power to your project. The leads are about 15cm, and the last 5mm of them are tinned. It is a series connection. The case box can keep your batteries organized and protected. The holder case is designed with leads for easy to solder and connect. This battery_holder case is perfect for devices that need a 7.4V external battery.