iPhone iPhone 6s high battery use when working on Mac

[masi0]

Quite funny issue here:

1. when i am not using my mac the battery use is decent, can live 2 days with moderate use
2. when i work during the day for about 10 hours or so, the battery on iphone drains significantly faster - can someone explain what can drain it? iMessage? Continuity? maybe something else?

 

[bransoj]

Not using the phone as a personal hotspot is it?

 

[masi0]

no of course not

 

[Mlrollin91]

If you are using iMessage on your Mac, your phone's battery will take a hit. Because even though your phone screen is not on, those messages are being updated.

 

[masi0]

If you are using iMessage on your Mac, your phone's battery will take a hit. Because even though your phone screen is not on, those messages are being updated.

Make sense. This is what I though!

UPDATE: I have checked and this does not help. Also disabling forwarding calls to Mac did not helped - still battery drains faster than without my Mac around

Any other ideas?