TPE 6 Cell Laptop Battery for Lenovo ThinkPad T61 R61 R61i R400 T400 R61 7751 R61 7753 R61 7754 Series (14-inch wide) T61 6377 T61 6481 T61 7661 fits 42T4652, 42T5225, 42T5262, 42T5264 Battery type: Li-ion; Capacity: 5200mAh 58Wh; Cells: 6-cell; Voltage: 11.1V. 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.