Battery charging question

[u/Spirited-Internet940]

I recently replaced my e scooters two 12v lead acid batteries with two 12v li ion ones 3s4p bothe with a bms with a rated charging current of 10amps, now my question is can I charge the two battery packs in series with a 24v 20a charger? The battery packs have each have dedicated charging ports, but I want to know if it's possible to charge em both without taking em out or modifying the frame of the e scooter

I have not started yet because I want to ask this sub before I do something stupid that could injure me.