my surface pro 5 weird battery behavior

Friday20

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Sep 30, 2019
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Hello everyone I'm using surface pro 5 now and usually I can get around 5 hours of battery life.

I've done everything to improve the battery life and I install the battery bar.

I discover that when my battery is above 50% ,discharge rate will be high like 20000mw or higher all the time no matter what am I doing and when the battery is below 50% ,discharge rate suddenly low like 2000mw or lower or higher up to task.

I underclock the CPU maximum to 90% and set everything to low as possible in power option ,disable service ,background app ,update driver etc.

I use windows 10 1903 build 18362.387

i5 7300u 4gb

I think the problem maybe the driver but which one ,that when its see my battery is above 50% its boost things up.
 

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