New battery on a MacBook Air 6,1 A1495 raises the trackpad

I got a new battery (brand: Cameron Sino, a fairly reputable brand (I think) for my MBA A1495, but it appears to not actually fit inside the laptop properly

- The battery is intended for this model and works fine otherwise.

- The trackpad is now just slightly raised, but it goes above the palmrest area.

- The battery itself is not swollen, checked this twice.

- First time I installed the battery, it only raised the trackpad from the left side, but after a reinstall it’t now raised on both sides.

- The backcover is fairly hard to put on as well.

- If I try to get the trackpad to a ”normal” level with the adjustment screw, it stops clicking completely.

Could it be just a skill issue on my end not knowing how to install a battery, or maybe the battery’s plastic frame has had a bad mold used for it?