Cheap battery for helicopter, Buy Quality battery aircraft directly from China battery 7 4v Suppliers: For the MJX B3 helicopter 3PCS 7.4V 1800mah battery and the US regulatory charger with 1 care 3-line aircraft accessories
7.4V 1800mAh lithium battery for mjx B3 brushless UAV Package includes: 3PCS battery 1PCS charge transfer line 1PCS specification charger Weight: 370g ​