This new Google Photos feature could be great for your phone battery (APK teardown) - Android Authority

Google Photos is preparing a battery-friendly backup control discovered in version 7.59. The new 'Optimize backup for battery life' setting reduces how often the app syncs in the background when you're not actively using it, helping preserve battery without disabling backups.

What's new

• A toggle called 'Optimize backup for battery life' found via APK teardown
• Less frequent background backups to cut power consumption
• Backups may run when you open the app rather than constantly

What to expect

• New photos and videos might not sync to the web or other devices immediately
• Daytime captures could queue and upload later to save battery
• You can keep backups on without relying on system-level restrictions

Why it matters

• Existing Google Photos controls focus on data usage, not power
• This adds a power-conscious option for users affected by aggressive background syncing

Status and availability

• Feature is in development and not yet widely rolled out
• APK teardowns surface in-progress code; final behavior may change or never ship

Quick tip (if and when it launches)

• Look under Photos settings > Backup for the 'Optimize backup for battery life' toggle

TL;DR

• Google Photos is testing a battery-saving backup mode
• It slows background syncing to extend battery life
• Expect occasional delays in cloud uploads and cross-device sync

Source: https://www.androidauthority.com/google-photos-battery-saving-feature-3632262/