Hi!!! I have just bought my second Samsung galaxy a51 since i decided to return my old one due to fast battery drain. However, in the case of the new one the battery is even worst. Both phones come from Taiwan apparently ( is the Taiwanese version, 6gb ram). I am in Australia so i don't understand this, since i had to buy the original Samsung charger because the version was foreign. Before choosing this phone i checked different review and everyone said the battery is good, that can last for 1 day, but is not my case, it only lasts 12 hours. In fact during the night battery can lose up to 15% in batery save mode. The phone links this battery usage with google play services amd google app. I would like to know if someone is having similar issues or is only the Taiwanese version that is problematic, or of you could fix similar problems.
Battery life and screen on time is a subjective topic as we all have our phones set up differently @Martin97
Take into account that with a brand new phone it will still be learning your usage and the battery isn't fully optomised until its been recharged and discharged a few times.
Regarding Google Play Services if you check out YouTube and a Google Search you'll find tips on what you can do in your settings etc to try and curb battery usage.
Personally I prefer to buy my Samsung phones direct from Samsung in my own country.
On a side note > Importing a phone from another country to use in your own or buying a Samsung phone from a reseller as they tend to source phones from all over can bring about other issues such as very slow or non existent software and Security Patch updates.
🌈 Stay Safe 🌈
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.