AC200L charging Elite 300 via Solar Input Port

First time post and thanks in advance for any advice you can give!

Can I use the 48V DC port on the AC200L to charge the Elite 300 through its DC/PV Input port (XT 60 i think)?

I have an AC200L and was about to buy a B330K exp. Battery, but for the same cost I could now buy the Elite 300 and gain another “portable” battery. The AC200L sits in my garage plugged into AC wall outlet and backs up the freezer / house refer / and assorted other AC power items if the power goes out (3-4 times a yr and usually for 12-24hrs).