Lithium Polymer Battery for Apple Watch Series 5 40mm, For Watch Series 5 40mm

1. Best alternative to main battery, standby time and call time are the same.
2. Lithium-ion batteries provide excellent continuous power for equipment.
3. Good quality and long life.
4. Compared with nickel-cadmium batteries, lithium-ion batteries have no memory effect.
5. If you do not use the batteries for a long time, store them in a cool, dry place and charge them every three months.