Use this guide to replace a worn-out or dead battery in your Galaxy Watch 3. [br]
If your battery is swollen, [[What to do with a swollen battery|take appropriate precautions|new_window=true]]. For your safety, '''discharge your battery below 25%''' before disassembling your smartwatch. This reduces the risk of a dangerous thermal event if the battery is accidentally damaged during the repair.
You’ll need replacement adhesive to reattach a new battery when reassembling the device.