Dell 7VTMN Laptop Battery - 3-cell - Li-ion - 11.4 Volts - 42 Watt-hourLithium-ion polymer batteries (often abbreviated to LiPo, Li-poly, lithium-poly and LIP) belong to the Li-ion family. They have a low self-discharge rate, are long-lasting and have a high capacity. Compared to other Li-ion batteries, the energy capacity of lithium polymer batteries is slightly lower, but they are more resistant to overcharging. The polymer-based electrolytes enable these lightweight batteries to be manufactured in a wide range of designs and shapes, making them very versatile. LiPo batteries are often use in battery electric vehicles, remote-controlled electric models, smartphones and notebook computers. Model Number 7VTMN Product Name Dell 7VTMN Laptop Battery Product Type Laptop Battery Compatible Part Numbers 07VTMN Technology Li-polymer Capacity 3500 mAh Voltage 11.4 Volts Nominal energy 39.9 Watt-hour Number of cells 3 Compatibility Dell Inspiron 7791 2-in-1; Latitude 5400, 5500, 5510, 5400 Chromebook, Precision 3540, 3550