When I first bought my P4 back in November, I remember I could go out multiple times and not worry abou the battery life of my controller. Today, I went flying, and after 2 flights, I went from 100% to 50%. That's within an hour. I thought it had like a 5 to 6 hour battery life per charge. What is the warranty on our controllers?

Is it charging your tablet? Seems normal.

Not sure how it seems normal. It's always charging my tablet. Whether its at 25% or 95%. Just sharing my personal experience on how it use to last several hours to now just a few hours. I fly for a living and have 5 batteries, so I can attest to the drop in performance. I use to go through 4-5 batteries and have plenty of power left. Now, I might get to 4 batteries max. Nothing has changed in how I use my controller. Been using my iPad air with it since the beginning.

The endurance will be different when connecting with each type of mobile device. I would recommend you to make sure the mobile devices and RC are fully charged to record the exact using time.

I'll do that! I'll try that and see what results I get.