While MagSafe®, MagSafe compatible and Qi2 charging will work with our Pixel 9 cases, we recommend using a Mous MagSafe or MagSafe compatible charger for precise alignment and optimised wireless charging. Qi2 is a newer technology and may not be as optimised for charging the Pixel 9 series yet, so we suggest sticking with our MagSafe or MagSafe compatible chargers for now.