The BTI Lithium Ion Notebook Battery is engineered to provide reliable power for your Gateway M250 series laptops. With a voltage output of 14.8V DC and a robust capacity of 6600 mAh, this battery ensures your device remains operational for extended periods. Its proprietary battery size guarantees compatibility and dependable usability, making it an ideal choice for users seeking a long - lasting power solution. Environmentally friendly compared to disposable batteries, this rechargeable battery is a smart investment for productivity on the go.