Bad battery perfomance on Pixel 9

Topper-Harley

DeletedUser495 charging is not really an issue

DeletedUser495 I'm not sure to follow. Once charged at 100%, does the charger influence the battery consumption?

DeletedUser495

Topper-Harley no, but your question is hard to answer without further insight. Go to Settings > System > Developer options > Running services and list the running apps (don't list system apps).

Topper-Harley

Thanks for the input.
Here's the service page. I don't see anything special, is it?

services

schweizer

I have a Pixel 9 too and I am happy to with its battery. i use about 25% per day which gives me more than two hours of screen time.

You have not shown your battery usage per app. This is the most important information. It's easy to drain the batrery when using the phone for navifation in bright sunlight.

DeletedUser495

There is definitely something draining battery in background when the screen is turned off. As @schweizer said, providing battery usage per app/system may help pinpoint the culprit.

Topper-Harley

Hello, ( @DeletedUser495 )

Sorry for slow answer.

Here are some updated reports and asked info.
I still don't see what could drain battery like that.
Today it shows more than 4% of battery drain per hour with screen off.

Any one has an idea how to limit battery drain ?

DeletedUser495

Topper-Harley I would look into disallowing background running for apps you don't need to be notified from and look at maybe reducing use of location and wifi/bluetooth scanning services.

schweizer

This seems to be a clear case to me. You used your phone in the car for navigation with waze. You had GPS turned on and network data. Most consumption relates on this. You listened to Spotify probably at the same time.

Unlike Google Maps Waze does not have offline maps so it causes more network data usage.

Navigation needs a lot of power especially in bright sunlight. You can feel how warm the phone gets. This is normal.

The solution is simple. You need a quick charger in the car.

In order to minimize network usage of Spotify download your music at home. Try a navigation app with offline maps such as Google Maps or OSMand.

Topper-Harley

schweizer
The thing is even with I stay at home and don't use spotify I'm at 4% drain with screen off.
Today I drove for like 30/40 minutes which is not excessive.

I used to have much more autonomy before GOS while today I reach 20% everyday

schweizer

Topper-Harley You asked for advice on how to limit your battery usage. @DeletedUser495 and I gave you some advice. But you do not seem to follow anything. So what is your point? Because I have the exact same phone and basically the same apps installed. But I get up to three days. So you should consider that the OS is not the problem.

Topper-Harley

@schweizer dont get me wrong, I hear your feedback.
What I'm saying is even the days I don't use Waze and stay home, the battery drain is there. And those days I mainly see Firefox and WhatsApp in battery usage.
What I find surprising is most of the installed app are already not running in the background.

You're saying it's not the OS but I had a better autonomy before GOS and it wouldn't be a first that some instances behave differently one from another.

DeletedUser495

Topper-Harley don't compare (with stock). You know your other fine settings, like mainly the ones regarding location and network scanning, we don't. From that little snapshot up there is really hard to establish in fact what is really eating up your battery. But, as mighty GrapheneOS would put it, it's likely something in your setup. So go through every item that might be out of place. With that being said, guys it's time for another donation, those who can. One has to appreciate this one of a kind project that despite all recent developments manages to deliver a reliable and top notch OS.

schweizer

Topper-Harley 'm saying is even the days I don't use Waze and stay home, the battery drain is there. And those days I mainly see Firefox and WhatsApp in battery usage.

That is a point to start. That the browser is number one is somehow as it should be.

So Whatsapp as number two? I am curious to know what is really the driver of whatsapp (and other messengers) battery usage. I.e. Threema never uses more than 1% per day but I rarely receive messages there. Whatsapp and Telegram I receive a lot of group chat messages. But I have silenced them. Does the battery usage come from the amount of messages or their size or wether you have instant notifications enabled? I do not know but I know that Whatsapp does not need to be a big power consumer at least with notifications of busy chats muted.

It will depend on your country too. In Switzerland i.e. we have among the lowest radiation limits of base stations worldwide. That means the network providers have a very dense grid of base stations. Which has the nice side effect my phone can send at a lower power because the closest base station is much closer tgen in Germany or France. Which reduces battery consumption. What about your country?

In a commercial OS app providers such as whatsapp can gain priviledged exceptions from battery optimization or background usage by paying a fee. But on a free OS this does not apply.

I have found that background usage was enabled for about any app in GOS. So I withdrew the permission for all the apps that do not need it.

siln0mx

Also on 9a the battery is draining quite fast. The phone is brand new. It' s really bad compared to an old Pixel 5 with almost 1k recharge cycles (same uaage patterns).
Also Charging Optimisation isn't working. It has been >14d without once charging above 80%