Why is it so cheap?
Here is the answer.
These batteries are lightly longer than regular batteries but it does not create the problem.
You need to fold the thick wires to the side of the battery when it is plugged to the drone. This way battery compartment door closes with no problem.
You have a chance to get more flight time for your kids.
Keep them busy more minutes than ever before.
Li-Ion Battery 2000mAh 7.4V
Package including：2Pcs battery +1 Pcs charger