TPE 7800mAh New Laptop Battery for Dell Latitude D531 D531N D820 D830 Precision M4300 M65 Fits 310-9122 312-0393 451-10326 451-10410 DF192 DF230 DF249 FF232 GX047[ 11.1V 87Wh 7800mAh ] Battery type: Li-ion; Capacity: 7800mAh/87Wh; Cells: 9-cell; Voltage: 11.1V. Use the keyboard shortcuts Ctrl+F or -F (Mac) to quickly crosscheck if your requested model is listed in the Fits Compatible Model List. 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. Grade A Cell ensures fast charging and low power consumption; Operation time: Around 2.5 hours. In reality, this will depend on the amount of electricity required by the device and how you use it. TPE only deals with brand new premium replacement batteries. We only use the highest quality cells inside the battery pack so you will have a long service life. Our inventory turns rapidly and you will always receive a freshly manufactured battery.