Can you both download this app: [http://www.coconut-flavour.com/coconutbattery|CoconutBattery] take a screenshot of the console with the system under charge and again running off battery. Post them in an answer so we can see them.
Also see if resetting the SMC helps. Follow this Apple T/N: [https://support.apple.com/en-us/HT201295|Reset the System Management Controller (SMC) on your Mac]
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Hopefully we can get to the bottom of your problem.
@Mike & @Igor Ivanovski
Can you both download this app: [http://www.coconut-flavour.com/coconutbattery|CoconutBattery] take a screenshot of the console with the system under charge and again running off battery. Post them in an answer so we can see them.
Also see if resetting the SMC helps. Follow this Apple T/N: [https://support.apple.com/en-us/HT201295|Reset the System Management Controller (SMC) on your Mac]