General description vhbw offers a high-quality, compatible battery designed specifically for use in your Apple Watch and fitness bracelet. This battery features a high capacity and can be charged with your standard charger or a compatible charger. The delivery includes all necessary tools for installation. Technical specifications Battery type: Li-polymer Capacity: 350 mAh Voltage: 3.8 V Energy: 1.33 Wh Number of cells: 1 Weight: 102 g Compatibility and accessories Compatible with Apple Watch models: MR1L2LL/A, MR2X2LL/A Replacement for: A1850 Installation Includes a comprehensive tool set for installation: 2x suction cups 2x sticky pads 1x plectrum 1x SIM card tray opener 3x plastic holders/levers 1x tweezers 1x T3 screwdriver 1x T4 screwdriver 1x T5 screwdriver 1x T6 screwdriver 1x Pentalobe TS1 screwdriver 1x Pentalobe TS4 screwdriver 1x cross-head screwdriver 1x split handle screwdriver