The Battery Technology BTI notebook battery is designed to power your device with efficiency and reliability. Featuring lithium-ion technology, it provides a voltage of 15.2 V, ensuring optimal performance for your notebook. With a capacity of 4280 mAh, this 4-cell battery delivers a total energy capacity of 65 Wh, making it a practical choice for users requiring sustained usage throughout the day. Compliant with multiple standards such as TUV, KCC, and WEEE, the BTY-M57-BTI ensures safety and adherence to regulations. Its compatibility with MSI BTY-M57 allows users to replace old batteries easily. Choose this notebook battery to keep your device running smoothly and efficiently for longer periods.