Battery drain on Android app 9.0.1

I have a Samsung Galaxy S7 Edge running Android v7. Battery drain with latest version of Sonos App was brutal. I had to uninstall. Kept running in background even after repeatedly closing it and doing a force quit. Phone was also getting very hot. After I uninstalled my phone went back to normal - i.e., battery lasted and was not dead by dinner time.

Come on Sonos. Have the courtesy to at least update us.
This is not an isolated incident.
9.0.1 is a pathogen on some versions of Android. We need a fix!

I have had to "Force stop" Sonos regularly as my battery life went from about 36 hours down to 6 or 7 with Sonos running. every time I stopped it I sent in a report so pretty frustrating this is still going on, the update should just have been rolled back. I have been having a play with the app and found that if I start Sonos during the day from the Forced Stop the battery life seems not to suffer as if I dont use the app then it is only a couple of percent, but if I switch the phone off then on Sonos starts eating the battery, particularly if I go straight into another app after switch on such as BBC news. I suspect that at start up Sonos is trying to do something before the system is fully started and getting a failure, then never recovers and just keep retrying and failing until you actually run the app, this idea is backed up by the very high CPU usage of what is actually an "inactive" app.I have just uninstalled it and reinstalled and now it wont connect to my system. Come on SORT IT OUT

Same behavior on my Samsung Galaxy S5 (Android). Battery life has plummeted since recent release.
Phone has been on for < 8 hours & the Sonos app has depleted 21% of battery.
I've just deleted the app on my S5. From 100% to 65% of battery in 3 hours. 13% by SONOS. 3% by the screen. Hopefully this will be solved quickly.

Does sonos have any update on this, its been a month and I'm still having to use 8.6 due to version 9 killing battery in half a day

so in answer to a inquiry on twitter, no there is no update, they didn't have a record of my diagnostic report, and I'm again going to have to reinstall the app, watch my battery life evaporate, and call them wasting more of my time as they make up yet more excuses.

I manually installed version 8.6, and battery was fine again. After some weeks I accidentally updated to version 9.0.1 and battery usage was on the top of the list within a day. I downgraded back to 8.6.

Just adding another "me too". The battery drain is intolerable on android (8.0.0) on a Samsung Note. Tried multiple re-installs (v.9.0.1), but the "force stop" doesn't have any effect on the app at all it seems. It just won't die! Alas, my time is worth more than this, so have uninstalled for good and using the computer as the controller. Have commented on the Google Play store and would hope that Sonos devs would be checking in there occasionally...? Really disappointed with Sonos' apparently lack of engagement with this, and will be checking back here to see if there are any updates. Thanks to everyone who has spent the time and effort re-installing, getting reports and screenshots and uploading them.

Used the phone by mistake again and argh!. Come on Sonos it is over a month since you provided any feedback on this very frustrating problem.

Thought that the battery on my OP3T was starting to give in. But no, the Sonos app was the culprit severely draining battery. Please update us on this issue.