I live in my mobile home and the built in battery ac/dc charger is not doing a good job for my two Running Bull agm batteries (2x92ah). I'm looking for a new charger but know I will probably change to lithium batteries when it's time for my agm to be replaced. I really like the Blue Smart with bluetooth but I'm not sure if the charger has settings and can be used for both my mgm and later on lithium batteries? Alternative, can you recommend another good charger for me?