Battery life more long T420s

y at - it a battery of longer life for the T420s. I can't seem to find one on the lenovo site, although it does not find my model number 4171-7fu either. the current battery gives me only a few hours of life.

any ideas appreciated.

or just get a second battery of 6 cells. The problem with the ultrabay battery is that they are expensive and their longevity is not large. In addition, it takes about half as long as a 6 main cells and costs the same.

Tags: ThinkPad Notebooks

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