Charging problem

[Czcon12]

I have a strange problem, when charging battery by either cable or cradle till full when I check my app it shows yellow 21%. It keeps going down. I've restarted turned it off and on even swapped batteries from another camera. It only does it on one of them. What's going on? 

[StephenB]

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@Czcon12 wrote:

It only does it on one of them. 

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1. One camera (with any battery)???
2. Or one battery (in any camera)???

[Czcon12]

Same camera any battery. 

[StephenB]

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@Czcon12 wrote:

Same camera any battery. 

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Is the camera still covered by the warranty?