Item Specs:Model Number: FW3SCapacity: 270mAhVoltage: 3.8VCompatibility: for Moto 360 2nd-Gen 2015 Smart Watch 42mmPackaging: 1 x battery, 1 x toolkitTips for installation:1. Replacing the battery or the screen panel may require some tech skills, you may need to pay some fees for technician assistance.2. The connecting points on the battery and screen panel is very fragile, be more careful when replacing it, make sure your hands are dry when install the battery or the screen.3. Check if the battery or the screen works well by connecting the cable before assemble your phone.4. Do not throw out the packaging box, keep it for at least 30 days if you got any issues, so that it would be more convenient for us to help you.Contact usSend us a message on Amazon whenever you have questions or get any issues with our product, our customer service team will answer you within 24hrs, your patience is highly appreciated. This battery is specially designed for Moto 360 2nd-Gen 2015 Smart Watch 42mm, it can replace your old battery, Tech skills may apply when replacing the battery. The battery comes with high quality repairing tools and 3M adhesive tapes, no instructions for installation, a professional technician is recommended if you don’t know how to replace it by yourself. If the product you received is broken, crashed or dented, please do not install it in your phone, tablet or your laptop, contact us firstly and we will help you to resolve the problem immediately. Installation videos could be found on the internet like YouTube. Brand Vvsialeek Voltage 3.8 Volts Amperage 3.8 Amps Model Name FW3S Unit Count 1 Count Reusability Rechargeable Manufacturer Shenzhen Qijizhineng Limited Company Model Number fw3s BuiltIn Media tools Battery Weight 100 Grams Antenna Location Laptop, Tablet, Watch Battery Capacity 270 Milliamp Hours Battery Cell Type Lithium Ion Number of Batteries 1 Lithium Ion batteries required. (included) Compatible Phone Models Moto 360 2nd-Gen 2015 Smart Watch 42mm