I want to buy new original battery for my laptop (lenovo b460e)?

I want to buy a new genuine laptop battery for my lenovo b460e. I refered some shops. They are saying "there is no original battery, the packing of the battery is look like original, they will sell the battery at orginal battery price". But somebody says "there is original battery is availble".
I wanna know How to find the difference between the original battery and comfortable battery? Is this two batteries are look like same or not?
i am totally confused… Please help me friends

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