T500 battery DEAD even in good health

I have two batteries for my T500, two 6-cell, and the two healthy according to lenovo's Manager of power

but the cruel reality is that they last no more than 10 minutes, they jump suddenly from 75 or 80% for a minimum of 5 to 10% of the power, and a few minutes later made my helpless pc. Same charge give a funny action, estay long in the percentages of House and then it goes upp quickly and reach the 99/100.

They both like 2 years, I've been using them alternately, one has 246 cicles, the other 211, ability to 39.31 (out of 56,18) and 41,15 (out of 56,18 too)

I know they wear stretch out to some, but shouldn't they last a little longer?

Come'on, they are original Lenovo (manufactured by Sony) batteries.

Can I do beside buying new?

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For a Sony battery, this behavior is quite common. I have two Sony and Sanyo one-cell battery in the T500 in failure 100 odd cycles with 2 to 2.5 years since their first use.

Tags: ThinkPad Notebooks

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