最後將IBM論壇上，IBM官方提到電池使用與保養方法列出来
In general, rechargeable batteries store electrical energy through chemical reaction -- therefore, capacity will change by temperature, unused storage period, load condition, and number of cycles used.
The following instructions provides tips on how to obtain best battery condition to extend battery rundown time.
Once you have started charging the battery pack, do not use it until it is fully charged.
If your battery is brand new, and you are charging it for the first time, your battery may not be charged to full capacity due to characteristics of chemicals in the cell. To obtain maximum performance, all chemical materials in the battery must be fully activated.
In order to achieve this:
Cycle the battery (fully charge, then fully discharge) three times.
Cycling the battery three times is also recommended if you have stored the battery for a few months.
Do not charge the battery pack until all of its power is used. Partial charge or discharge causes a lack of uniformity of activated chemicals
in the cell, and may cause performance degradation.
簡單講就是全新的電池請做三次完整的充放電動作，平時使用時，將電用光後再一次充到飽。
我认为这是不对的，这样作会急剧下降容量
