XSpower question

Question: I want to replace the XP750 with PWR-S5-20Q can i charge the new battery with a AGM charger like this videos says if so how cause Shawn does not mention how to or what mode to put the charger in i have the NOCO Genius 10 can anyone with any knowlege what mode to put this charger in to make it work A.I know nothing it keeps giving different answers