UUMART 4pcs 3.7v 600mah 25c Upgrade Lipo Battery with X4 Battery Charger for Syma X5 X5c Parts Charging Time : About 90 min ( four battery charge together) Playing time for X5C: About 9 min and 50 second Playing time for X5A : About 10 min and 40 second Upgrade to 600mAh, longer flight. Suitable for Syma X5C X5A quadcopter