42Wh (11.4V) Li-Ion battery compatible for a wide range of Dell Latitude and Precision laptops. This battery replaces the original 93FTF, D4CMT, GJKNX, 3DDDG codes and ensures reliable performance with over 500 charging cycles. Designed with smart chip for protection against overheating, short circuit and overvoltage, it offers up to 4-6 hours of autonomy in normal use. Verified real capacity, high quality cells and CE/FCC/RoHS protected circuits certified. Battery type: Li-Ion (Litio-Ione) 3-cell Voltage: 11.4V Capacity: 42Wh / 3500mAh Charging cycles: 500+ during useful life Cell chemistry: High Quality Lithium-Ion Integrated Protection: Overvoltage, Short Circuit, Overheating Compatible Brand: Dell Compatible Product Lines: Latitude and Precision Compatible models: 5280, 5288, 5290, E5280, E5288, 3520 (M3520), 3530 (M3530), 3520, 3530, 5580, 5590, 5591, E5580, E5590, E5591, 5480,5488,5490,5491,5495,E5480,E5488,E5490,E5495 Each unit is verified for quality and reliability. Included 1 year warranty on refurbished products and dedicated technical support. Simpletek - Italian quality since 2010. Products assembled and tested in Arezzo.