Instruction: Generate an answer to the question by utilizing the information contained in the document.

Input:
Question: Is this battery an authentic Toshiba battery?
Document: And the suspicion of the upset buyers was that they did not purchase an authentic Toshiba product. The Toshiba site has the replacement for about 150 (plus tax, maybe even shipping), which I was not willing to pay. However, I did want a peace of mind, and not having to deal with returns from a shady supplier.
I noticed alot of the reviews said that this was not an authentic Toshiba battery but that was probably because they bought it from an outside seller and not Amazon. Mine was sold and shipped by Amazon and it was an authentic Toshiba laptop battery for my L655D. I also noticed some peoples reviews saying it didn't fit their laptop but if they would've gone to Toshiba's website and looked up their laptop then they would know exactly which model they needed.
The original battery for my laptop was only lasting a little more than an hour so it was time to get another. I found this battery at Amazon for a good price so I went for it. Some people have complained that they got something other than an authentic Toshiba battery but that was not my experience. The battery fit perfectly and now I have power for 4 to 5 hours depending on how I'm using it. I do recommend doing a full discharge/recharge every so often to help the longevity.
This is the same battery I had with the original purchase of my Toshiba computer, which I felt performed very well.
Battery I received from Silver Lake Technology does not have Toshiba anywhere on battery. Not the same item as pictured.
The battery that was shipped is a genuine Toshiba (not an aftermarket as some reviewers have claimed) and fits my Toshiba Satellite L670 perfectly.
Great price and genuine Toshiba part. I have had this product for awhile and it preforms as expected. Remember it's only a battery.
this was such a great find... and it was so much cheaper than the exact same battery on the Toshiba web page... if you want extended life battery... this is it!
This was the recommended replacement for my Toshiba laptop battery. It works fine and I no longer receive battery performance issue notifications.
I am very pleased with this purchase. It was an original battery from Toshiba and the battery life is great. I would recommend this product to others.
Answer: whether the battery is authentic, depends on the seller.  the reviews are for the product, and not for the sellers.  various reviews of this battery may be referring to different sellers.  you won't know if battery is authentic or not, unless a review mentions seller by name - including whether the battery was authentic.  i purchased mine online either at office max or office depot or staples (don't remember which now), and it was authentic.