Adding some Li Ion batteries to my AGM in parallel

I guess I'm late to the party, sorry for trying to help.

Ok, I guess it's a really bad idea to mix battery chemistry's. Even AGM and flooded Lead Acid batteries. Mix and match is bad Juju.

This is the battery I bought for the QRP ham radio for power. LiPO


And today, I just flat out ordered this charger, which equalize charges each cell individually, every time,

4S charger

Already have a 120V inverter that can handle the charger plug in. Was hoping there was another way, but I guess this is the best way for what I have.