I had same issue with battery drain after last update of google play services on Huawei P10 plus (Emui 9.1), and how I resolved it.
https://www.express.co.uk/life-style/science-technology/1166478/Google-Android-warning-Play-services-battery-drain-smartphones

Naptime
Unbelievably improve the battery life during idle of your device by empowering Android’s built-in Doze power saving functionality. It supports Marshmallow, Nougat, Oreo and now Pie. It features more options for rooted devices, but it’ll also work if you’re unrooted.

Naptime also allows you to disable WiFi, mobile data, location & bluetooth during doze for that battery life /flex

https://play.google.com/store/apps/details?id=com.franco.doze&hl=en_US

Minimal ADB fastboot tools
https://forum.xda-developers.com/showthread.php?t=2317790

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