fyi:
If you own a Dell laptop the following may apply to you:
DELL have advised that they are recalling the battery pack used by the following types of laptops
Latitude D410, D505, D510, D600, D610, D800, D810
Inspiron 510M, 600M, 6000, 8600, 9200, 9300, XPS Gen 2
Precision M20, M70
The problem is isolated to the following Battery models
3K590 , C5340 , X5308 , F5132 , U5882 , U5867 , 6P922 , C5446 and C2603
These part numbers are printed on the back of the battery packs as illustrated below.
Apparently the batteries cause a risk of fire and DELL advise that you stop using them straight away. Please continue to use your mains supply, as this is not affected.
More info:
here