Do I need a better converter?

[mooky_stinks]

Just replaced original 80ah battery with 2 100ah batteries. When dry camping for 3 nights the batteries were steadily lower after each charging during the allowed generator times. 1st night when fully charged they dropped to 60%. 2nd night they started out at 85% and dropped to 50% then 3rd was about 70% to 30%. I never saw higher than 13.7 when plugged in to my 2000watt generator. Haven’t looked at what my converter is rated for yet but am I right in thinking it’s just not putting the charge back in fast enough? Would a stand alone commercial battery charger that I have work better in the few times a year I dry camp? Any suggestions would be appreciated!

[librty02]

You did not state what type of batteries you got are they FLA or LifePO4?

[mbopp]

If it's a WFCO converter they're notorious for not going into bulk charging mode. I have 2 GC batteries and an IOTA-55 converter for faster charging off a generator.