Lenoge Replacement Battery New 9 Cell 7800mAH Li Ion Brand New Laptop/Notebook Replacement Battery for Dell Precision M4600 Dell Precision M4700 series Compatible Battery Models 0FVWT4, 0TN1K5, Replacement Laptop Battery for Dell Precision series Li-ion, 11.1V 7800mAH (Extended Capacity), Black. Brand new, 3 years warranty! An insulating safety wrap is used to enclose the cells This battery sticks out from the bottom, elevates the laptop, and makes the laptop easier to use for typing High capacity battery with extended hours