Review on High Performance Replacement Battery CS03XL For HP Elitebook And ZBook Laptops - HSTNN-UB6S HSTNN-IB6Y 800231-141 800513-001 800231-1C1 CS03046XL P/N by Ethan Carpenter

This battery worked perfect in my HP Elitebook 850 G3. My battery was dead and would not work at all. I went to order the HP OEM part from the HP Parts Store but they have been out of stock for a while AND it was about a $100 battery.I decided to give this one a try since it was only $30. The battery works fine and came with a 75% capacity charge for it's first cycle. I ran the battery check from the HP support software and everything came up correctly.For those people who are whining that "it did not come with screws" you just take a pair of needle nose pliers and pull the little black gromet off on the bottom of the screw on the battery that is in your laptop. You then use the pliers again to use a little pressure and pop the screw out of the old battery and then pop it into the new battery and put the gromet back on. It's not hard people! Yes I would agree it would be nice if they included a spring loaded screw like the original battery but being you are saving $70 off the $100 for a true OEM replacement the extra few minutes to transfer the screw isn't a big deal.Do I expect this battery to have the same performance as the OEM replacement? Nope, being that it is 70% cheaper than the OEM I suspect the capacity may not be as good and it might die sooner than my 6 year old battery that came with the laptop. But hey, I am working now.Worth the price.