Oneda New Ultra High Capacity Laptop Notebook Battery for ThinkPad T60 T60p T61 T61p T500 R60 R60e R61 R61e R61i Z60m Z61m Z61e Z61p R500 W500 SL300 SL400 SL500 batteries Pack [9-cell / 6600mAh/71Wh] Brand: Oneda; Battery type: Li-ion; Voltage: 10.8V; Cells: 9-cell; Actual Capacity: 6600mAh/71Wh; Color: Black. Improve the service guarantee, Satisfaction guaranteed and backed by a one year replacement warranty. Oneda new high-quality batteries, 100% New from Manufacturer. Up to 500 recharge cycles over the life of the battery. Grade A cells ensure fast charges and low power consumption; Built-in circuit protection. Automatic power cut off at high electric current, voltage or temperature ensures safety and extended battery life. The actual operation time will depend on how much electricity is required by the device and how you use it.