Reply To: iCloud Photos stuck at ‘Syncing 412 items paused to optimize battery’ even on MagSafe

– Force-quit the Photos app (swipe up from the bottom, pause, then swipe the Photos card away), then reopen it to restart the sync session.
– If that doesn’t resume syncing, go to Settings > [your name] > iCloud > Photos, turn off “Sync this iPhone,” wait ten seconds, then turn it back on — this forces a fresh indexing pass without signing out of your Apple Account.