- Applicable Model: 3.7V 520mAh lithium battery is suitable for Wltoys V977, XK K110, XK K110S remote control helicopter.RC Helicopter battery and charger set
- 520mAh Capacity Battery: RC helicopter battery capacity is 520mAh, upgraded large capacity battery, provide longer service life. 3.7V rc helicopter battery
- Strong Battery Power: Violent battery, strong power, stable and performance, providing you great using experience.RC Helicopter battery and charger set
- Replacement Parts: Easy to install and disassemble, you can directly replace the old or damaged parts to obtain higher strength.3.7V rc helicopter battery
- Light and Portable: Light in weight, small in size, easy to carry, will not increase your burden, can bring you more convenience.RC Helicopter battery and charger set
