I found this tidbit today, a USB charger. Since we all have Phantom 3 batteries I thought you guys might be interested. It lets you recharge phones, tablets, etc from your Phantom battery via this USB adapter @ 5V - 2A. That's twice as much as the 1A charge rate that the majority of the legacy USB chargers put out. These use to be $50 earlier in the year, which I thought was a bit out of reason, but these are only $20 so I bought one today. If you have a battery that's discharged down to 40% that you you'd rather not fly, use this USB adapter and take it down to 15% when you get in a pinch with your phone/tablet. Nice backup to keep in the case.