XPS 12 (9Q23) Battery Upgrade

Good afternoon, my name is Aimee and I'm a college student. I purchased my XPS 12 laptop a little over a year ago. It has come in very useful for my studies and I do enjoy the features that it offers. With that said, shortly after purchasing the laptop I noticed that the battery life drained very quickly. Just as an example, as of now I've been using the computer for a little over an hour, beginning with full battery, and my battery has drained to 65% already. As a college student, this low battery life can be quite a problem. There are times when I must attend multiple classes back to back and do not have any time to charge the laptop, consequentially causing it to power off on me before I can finish my classes. On multiple occasions I've had to finish writing my remaining notes into my phone because the laptop just could not survive the day. 

Today while searching the internet for possible "XPS 12 battery saving options" and not coming across any, I came across a post that stated "Dell XPS 12 Haswell Battery Upgrade." When I read the article I was thrilled to hear that the battery life was extended to a whopping 8 hours. It's exactly what I needed. I began to search around the Dell site looking for this "upgrade" until I realized that I couldn't upgrade the battery at all. A completely new model was created and there isn't any option to upgrade the battery.

I would really appreciate it if Dell could allow the users of this old model to upgrade their laptops to the new Haswell battery. I can't afford to purchase the newer model because of study expenses but I would be more than willing to pay a reasonable fee for the upgraded battery to be installed in this model.

Sincerely,
Aimee