For US customers the link you provided is not accessible. You may want to look into the pricing again in that case, as the official batteries still go for much more that what is standard for that size battery. Take example the one I listed, $35 with free shipping, lowest I have seen in EU is 54 US, but even if HTC offered it at 49 onsite, that is still the price of a 20000 MaH with Qc3 from other brands. We are all aware that HTC Vive likes to price gouge, but when batteries are easily available at a cheaper price with higher capacity it makes no sense to buy the Official battery. Speaking of the Battery itself, whoever made the design decision to size the wireless battery at 2.5 hours of playtime with controllers that last around 8 hours, should be fired. As now I am stuck buying an additional 2 batteries so that I can have one in use, one charging, and one almost or fully charged to swap them out as they die, since charging times are about the same as or longer than the use time. At the least there should have been a pass through port on the wireless adapter to allow for corded play without disassembling the headset at the very least. But even as a new Vive user it is easy to see why Vive has become known for making very poor design decisions. Don't get me wrong, I enjoy the headset and I am happy with it overall, just frustrated at idiotic design choices that were made, ones that should have been very easily caught and addressed during the design process and testing, but were obviously passed over for cost savings. As much as the Vive touts itself as a High End VR headset, design choices show exactly where it stands.