Will Honda 2000 supply MSH 3012's charger?

GordonThree wrote:
If you have a remote for the Magnum, you can program the charge input current to lesser amps. Off a single blue 2000 watt, I set for 13a and my MS2812 can hit 100 amps charging current into a depleted bank on a cold day.

I recommend saving input current as one of your FAV settings.

mine has a shore power setting to limit what it pulls in. I forgot to reduce this from 30 once and the Honda's breaker tripped and it stopped working.

mine has 10, 15, 20 etc increments and I've used 15 for the Honda and it seems to work without tripping the Honda's breaker.

my AGM batteries need 14.7 for both bulk and absorption, so I just wonder if the magnum's charger gets up to that (it's programmed for these voltage set points) given the Honda's 13.3 amp ac input.

Magnum has a table for input amps vs charger output. I recommend consulting that chart. There is no output amps adjustment, that part is automatically computed.

Thanks. I forgot to mention, the MSH 3012 has a "shore power" setting, which I set to 15amps max when using the Honda 2000. I'm studying this, but I gather this setting should match the Honda 2000's circuit breaker rating. Also, my bank is 800AH AGM; 4 (6) volt Fullriver DC-400-6s.

I gather the max charge rate at 80% is .8*125 or 100 max. With shore power on max 15, the Honda's breaker doesn't trip, and the Magnum display inside says 90-100 dc amps when the batterires are in bulk.

It would appear these setting prevent damage (I suppose). It just seems to take forever, especially the last 5% of battery capacity while in absorption.

I guess I'm tryign to understand whether an Onan 3.6k would be any faster. If the onan ran at 125 dc amps, I guess that's 25% faster in bulk perhaps, but would either generator be faster during that last 5% absorption phase, when the batteries seem to accept only what they need, regardless of the DC amps being thrown at them.

$3,500 for an onan, when I already own a Honda 2000, seems like a lot. It's hard for me to quantify the marginal charging time.

Honda is not large enough to put 125 amps into the battery. Of course the Honda can fully charge the battery... you just need to dial down the amps to about 80 and you should be fine.

I believe the 80 percent is 80 percent of the 125 maximum amps or 100 amps maximum charge rate. Honda might hold this charge level but I think you are better at 60 or 70 percent that would give 75 or 87.5 amps. It just takes longer. Magnum does not stop charging at any specified battery level.

The charging rate is not linear unless you have a lithium battery. With lead-acid you are looking at 2 to 4 hours to get 90 percent charged. The last 10 percent will take another 2 to 4 hours.

If you have a remote for the Magnum, you can program the charge input current to lesser amps. Off a single blue 2000 watt, I set for 13a and my MS2812 can hit 100 amps charging current into a depleted bank on a cold day.

I recommend saving input current as one of your FAV settings.

The Honda is not big enough.
Trying to run a bigger load like your charger will result in the Honda tripping its breaker and/or supplying low voltage which will destroy your charger and if you keep doing it, may damage the Honda as well.
You don't want to do this.