Spare Charger for the ProFlight X18 drone With the spare charger for the X18 it allows you to charge multiple batteries at the same time to make sure your drone is always ready to go and help extend your flying experience With it being USB plug in you can charge on the go if you\'re driving to your next photo location! . The batteries can take upto 4hrs to charge upto 100% so if you have multiple batteries having a spare might just come in handy. Charge your batteries to 100% in 3-4hrs! . USB Plug in so able to charge anywhere . Once charged the drones boasts upto 25 minutes of flight time