5 pcs 3.7V 500mAh helicopter Batteries quadcopter Hubsan X4 for H107 H107D H107L H107C V252 JXD385 (Toy)
The batteries work perfectly well on a Hubsan X4, they rather hold well after the charge 10aine refills. Used with a multiple charger, charging is made in less than 40 minutes, not far from a flight hour;)!