TPE 5200mAh 58Wh Safety Certified Laptop Battery for Dell Inspiron 14V Inspiron 14VR Inspiron M4010 Inspiron M4050 Inspiron N4020 Inspiron N4030 Inspiron N4030D fitsTKV2V W4FYY X3X3X 0M4RNN FMHC10 Grade A cells ensure fast charges and low power consumption; Built-in circuit protection ensures both safety and stability. Use the keyboard shortcuts Ctrl+F or -F (Mac) to quickly crosscheck if your requested model is listed in the following Compatible Laptop Model List or Compatible Parts Number 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 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. 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.