I'm running my own mail server. When I had my Android mail client to keep an active connection I had quite high battery usage. So I set to check for new mails at an hourly interval.

Now I discovered the setting "imap_idle_notify_interval" and that its default value is 2 minutes 🧐

I set this now to 60mins (Internet says the RFC defines the max at 29mins🤔🤷) and it seems to be fine now on my Android client.

#Dovecot #mailserver #IMAP #IMAPIdle #Android #BatteryUsage

Engadget: Google is clamping down on Android apps that cause excessive battery drain. “The company just announced the launch of a new metric for app developers that keeps an eye on battery usage. If a developer consistently runs afoul of Google’s battery usage guidelines, a warning will pop up in the Play Store to alert end users.”

https://rbfirehose.com/2025/11/12/engadget-google-is-clamping-down-on-android-apps-that-cause-excessive-battery-drain/

I'm going to run some tests next week.

According to battery usage in GrapheneOS, the Mullvad VPN app uses much more battery than the Wireguard app.

My first feeling tells me the same, but I'm going to have to do some more accurate tests.

Strange if true though because both is wireguard protocol.

#GrapheneOS #Mullvad #MullvadVPN #VPN #Wireguard #BatteryUsage #Android #Battery