GFI&reg; 5200mAh New Replacement Laptop Battery for DELL Vostro 3400 3400n 3500 3500n 3700 3700n, Compatible Part Number 0TY3P4 CYDWV 312-0997 312-0998 Battery type: Li-ion Battery; Capacity: 5200mAh/56Wh; Cells: 6-cell; Rating: 10.8V Use the keyboard shortcuts Ctrl+F or -F (Mac) to quickly crosscheck if your requested model is listed in the Fits Compatible Model List. Grade A Cell ensures fast charging and low power consumption; Operation time for standard batteries(6-Cell, 4400mAh) can reach approx. 2 hours, but the actual operation time depends on how much electricity is required on your device. Up to 500 cycles service life, low self-discharge, no memory effect; Dual IC chips provide protection against short circuit, over-discharge, overcurrent. CE/FCC/RoHS certified for product safety.