System is 2x100Ah 12v AGM batteries (bought new 2 years ago, stored unused properly/regularly trickle charged but not constant, only installed in the camp trailer last week), 2000W Renogy inverter.
Under a rather heavy load (hairdryer), pulling 1300W, voltage on the batteries drops from 13.6 down to 10.9v, which signals an alarm on the inverter, but doesn't cut out. I'm guessing this isn't normal?
I'm also guessing I need to re-do some of my cables. I made a beginner mistake - soldered (poorly/lots of oxidation now I know better) some of the terminals, I think including the battery to inverter ones. Though the inverter cables I think are WAY oversized (4/0AWG), but there's still probably so much oxidation in there, that re-doing them with proper crimps might fix the problem.
IF my poor solder job on the cables is the culprit - is this likely to cause issues to 'normal' draws, say 1-15A (drawn from the battery) and causing lost power or is it mostly an issue under higher loads? I mean of course it seems to be a problem under load, and I assume that would be from my oxidized terminal connections, but what I don't know is if my system is just undersized for my inverter (haven't tested trying to draw 2000W) and the big voltage drops are to be expected or if this is not normal at all and it's likely all due to my cabling issue.
Under a rather heavy load (hairdryer), pulling 1300W, voltage on the batteries drops from 13.6 down to 10.9v, which signals an alarm on the inverter, but doesn't cut out. I'm guessing this isn't normal?
I'm also guessing I need to re-do some of my cables. I made a beginner mistake - soldered (poorly/lots of oxidation now I know better) some of the terminals, I think including the battery to inverter ones. Though the inverter cables I think are WAY oversized (4/0AWG), but there's still probably so much oxidation in there, that re-doing them with proper crimps might fix the problem.
IF my poor solder job on the cables is the culprit - is this likely to cause issues to 'normal' draws, say 1-15A (drawn from the battery) and causing lost power or is it mostly an issue under higher loads? I mean of course it seems to be a problem under load, and I assume that would be from my oxidized terminal connections, but what I don't know is if my system is just undersized for my inverter (haven't tested trying to draw 2000W) and the big voltage drops are to be expected or if this is not normal at all and it's likely all due to my cabling issue.