Flew my P34K yesterday without incident. Today I attempted to power up the transmitter,  and it would not respond. No lights, ect. Left on charger for over hour, still no lights when  on the charger or after pressing power button twice in the usual fashion. I may have left the tx on.  Unit was not dropped or abused in any fashion. Sound like it has to go in for repair/replacement of battery.?

Thanks

Make sure the plug is fully pressed into the RC. If still will not change then you'll need to send it in for repair.
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http://www.dji.com/support