Battery Life Question 86Wh vs. 94Wh

Just curious. I have a Lenovo W510 that I bought soon after they first came out. It came with a 86Wh 9-cell battery. Now, I notice that Lenovo's replacement battery is a 94Wh version. What is the typical performance difference between the too. If I decided to swap out batteries would I see a noticeable increase in battery life?
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More about battery life question 86wh 94wh
  1. if they hold true to the ratings you should get about 10% better battery life
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