You should be avoid using up the battery power before charging the battery, because this will give the battery a lot of pressure and resulting in damage. A more feasible approach is to charge the battery when the battery remain about 20-30% of power. In fact, the notebook lithium battery in the number of "use up / charge" times is limited, all used up and then charge will greatly shorten the battery life. At the same time, the battery should be charged in a dry place, and you should also pay attention to the heart problem.
Hot to store the IBM Thinkpad r60 9446 battery, use up the battery power or full charged the battery ? Store the battery with full discharged will make the batteries lose activity, even lead to the control circuit protection self-locking and no longer available. Store the battery with full charged will bring the safety risks, the best preservation method is store it in a cool and dry place with about 40% power, about 20 temperature is the best store temperature, of course you had better use the battery once a month, this can guarantee the battery a good state of preservation, and will not let the battery power completely loss and damage to the battery.
IBM ThinkPad I1500 Series battery fits laptop model: IBM ThinkPad I1400 / I1420 / I1460 / I1480 / I1560
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6600mAh 10.8V Li-ion battery for IBM ThinkPad T60 Series, IBM ThinkPad T61 Series, IBM ThinkPad R60 Series, IBM ThinkPad Z61e.
2200 mAh 14.8V Lithium-ion laptop battery for IBM ThinkPad X60 Series battery / IBM ThinkPad X60s Series