A1175 battery for MBP 4.1 (early 2008)

[londonon]

I am looking for A1175 genuine new battery for my older MPB. Apple does not sell them since December 2014, NuPower batteries (OWC) have mixed reviews.

I found A1175 batteries on ebay: http://www.ebay.com/itm/Genuine-Ori...-Pro-15-Laptop-MA348GA-MA466LLA-/260409986306
and on Alibaba: http://www.alibaba.com/product-detail/Wholesale-Genuine-Battery-for-Apple-A1175_60298352321.html

What is the best option?
My preference is to purchase the original Apple battery. Are they still available somewhere?

 

[CoastalOR]

Here is another place that you could contact and get more details about their battery.
https://www.ifixit.com/Store/Mac/MacBook-Pro-15-Inch-Replacement-Battery/IF185-141-1