Replacement IBM ThinkPad Z60t Battery (4400mAh) is specially designed for the original IBM ThinkPad Z60t Laptop battery. Brand new IBM Z60t Battery, with UL, CE, ISO9001:9002 certification, 1 year warranty.compatible with IBM 40Y6793, IBM FRU 92P1121, IBM FRU 92P1123
Short ibm laptop battery life in a laptop is mainly cause by heat rather than charge / discharge patterns. Try to avoid frequent full discharging of the Lithium battery.
For lithium battery for ibm thinkpad z60t meter calibration,periodically do a full battery discharge, every 30 charges, to increase meter accuracy.
Another enemy of ibm laptop battery life is heat. Avoid heat, heat is the Lithium battery's enemy, the temperature in a car can easily rise 50F in a single hour, in some cases reaching 140F. Keep the ibm z60t battery cool. Avoid a hot car.
An LED display. Although pricey, LEDs use much less power than LCD.
A smaller screen. A smaller screen means a smaller backlight, which will also save on ibm thinkpad z60t battery drain.