Threads users say Meta's new app is DRAINING their battery
If you've noticed your battery draining after you downloaded Threads, make sure you turn off your phone's Background App Refresh setting.
To turn this off on iPhone, simply open the Settings app and go to General. Tap Background App Refresh, then Off.
On Android, open Settings then tap Connections and then Data Usage. From the Mobile section, tap Mobile data usage. Select Threads from below the usage graph, and turn off Allow background data usage.
https://www.dailymail.co.uk/sciencetech/article-12282079/Threads-users-say-Metas-new-app-DRAINING-battery-phone-affected.html