WELWIK 2PCS 3.7V Lithium Ion Battery Balancing USB Charging Cable XH2.54 Male to JST Female Conversion Cord Suitable for X5C/818a/X1/X4/HS170/X300/X400/F181/F180 Quadcopters

["The USB plug can be connected to a computer, mobile phone charger or power bank to charge the battery, making it convenient to use.","It can be used in conjunction with an XH2.54 rotating JST bus conversion cable, and can charge 3.7V lithium batteries via the JST plug, offering a wider range of applications. 3.7V lithium batteries can be charged accurately, charging stops automatically once fully charged, preventing overcharging.","Safe to use, simply connect the USB cable to the device to charge normally, with no need for monitoring.","Compact and portable, allowing you to charge batteries anytime, anywhere. Suitable for quadcopters such as the X5C, 818a, X1, X4, HS170, X300, X400, F181 and F180.","Application: Suitable for charging 3.7V XH2.54 plug-in lithium batteries"]