how do i find out exactly which battery charger i need for a drone quad four copter

Thanks I sure will

If you have a facebook account, go to our page (Florida RC Outlet) and send us a picture of the battery. We need to see what the voltage is and the Mah. Just take a picture of the side that has numbers on it. Also make sure you include a picture of the connector. We might be able to match one of our chargers to it.

Google what model you have!