Tekkeon MP3400 Mypower All Universal Rechargeable Battery

Features: 56wh output power. Weight: 15.9 ounces. Provides 40% more power. Supports multiple voltages. Powers and charges portable devices. Dimensions: 3.28"W x 6.80"L x 0.92"D. Voltage lock holds current voltage setting. Visual indicators identify exact power level. Automatically resets to the lowest setting after a device is connected. Rechargeable lithium polymer battery charges notebook for up to 4 hours. Includes a leather travel case and 8 adapter tips for connection to most portable devices. Compatible with most notebook computers with DC jack and most portable devices with DC jack.