MX Player on the Note 3

[RhysC24]

Hello, I've been using MX player on my Galaxy Note 3 N9005 to watch mkv files (mainly anime which is 20 minutes per episodes). However, I've noticed that my battery drained from 80% to 71% after watching only one episode which was approximately around 20 minutes and again when the battery was 71% I watched another episodes and the battery was drained to 61%.
My device also heats up when I watch videos on MX Player.

Is it normal that MX Player drains the battery that much and heats the device (not actually over heating)??

OR

Is there a problem with my device itself?

Thank you in advance!

 

[dakeb]

Are they stored on the device or streamed? Streaming can eat the battery.

Also, set your display to auto brightness. Full brightness will eat the battery too.

 

[RhysC24]

Are they stored on the device or streamed? Streaming can eat the battery.

Also, set your display to auto brightness. Full brightness will eat the battery too.

All the mkv files are on my SD card.