Battery Information:
- Compatibility: This battery is specifically designed for use for Iwatch series 1/1st generation 38MM .
- Battery Model: A1578 A1802 A1553
- Capacity: 205mAh
- Watt-hour: 0.76Wh
- Volts: 3.8V
- Battery Type: Li-ion

Installation and Usage Tips:
- **Caution**: Battery replacement requires technical skill. If you are not experienced with electronics repair, it is highly recommended to seek professional installation.
- **No Paper Manual**: We do not include a paper instruction manual, but our product image features a simple installation tutorial. For a more detailed guide, we suggest watching installation tutorials on YouTube.
- **Safety First**: When working with electronics, prioritize safety. Ensure the device is powered off and disconnected before replacing the battery.
- **Proper Tools**: Make sure you have the necessary tools for a successful installation. Our package includes a pry bar, screwdrivers, tweezers, suction cups, and pry tabs to assist you.

Please note:
- **Professional Installation Recommended**: If you are not confident in your ability to install the battery correctly, it is best to seek professional service. Incorrect installation may lead to device damage.
- **Installation Caution**: Improper installation can cause damage or malfunctions. We cannot be held responsible for any damage resulting from incorrect installation.