FREI AKKU 31158 - Battery for Apple Watch 4 40mm, Li-Po, 224 mAh

Replacement battery for smartwatches.

Compatible replacement battery, not an original battery from the manufacturer!

Refer to the device and battery numbers listed to select the right battery for your device!

Replacement battery suitable for:
Apple: A1975, A1977, A2007, Watch 4 40mm, Watch Serie 4 40mm

Identical to the following batteries:

Apple: A2058

Please note:

Opening your device voids the warranty. Installing this battery is especially complex and follows at your own risk. We do not assume any liability for damage and failure with devices and/or batteries. ...