Features: This replacement battery delivers precise power monitoring and intelligent charging/discharge management to prevent compatibility issues like false alarms or unexpected shutdowns. Featuring cell for extended time and built in protections against overcharge, over discharge, and short circuits. Designed for mobile professional who use for portable gaming and productivity tasks on the go. Perfect for travel or outdoor use, providing uninterrupted hours of gaming or media playback without frequent charging needs. Easily install this battery to restoring your device's optimal power and longevity, avoiding installation hassles and extending component life. Specifications: Component:Plastic Size:Approx.11x2cm/4.33x0.78inch Package Includes: 1Pc Expansion Dock note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.