Los Angeles, CA -My DJI Inspire 1 drone cost well over $3,000.00 extra batteries are well over $200.00 each. Realistically you need several additional batteries if you plan to do any extended flying. One of the batteries I purchased was only recharged seven times and somehow gave a "damaged cell" warning. The battery is absolutely unusable. Three DJI technical support calls later they told me to send it in with photos of all six sides of the battery with proof of purchase and I'd get a replacement. Sounds simple! Not so fast! The date on the receipt Oct 2015 was not readable. So they refused to send me the replacement. Without a better copy of thr receipt I'm out of luck! So now I'm supposed to kiss enough ass to get a better copy of the receipt from my dealer. He's closed today so it will delay replacement assuming the dealer will generate another copy. My drone dealer is top notch in every way ...