mike4947
N. Syracuse, NY
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Thank you Wayne for the acurate details on what the converter and genset actually produce/use. Drives me crazy when folks use a simple 12 volts to calculate watts/voltamps.
As for a single battery drawing 55 amp I can say from experience yes. The battery may be almost 100% discharged but it will draw the full 55 amps. Not to mention the other loads the RV is using at "12 volts" drawing down from the 55 amps.
We have an electrician and an electrical engineer in our extended camping family and the equipment to test out our Saturday "discussions". LOL
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Salvo
California
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No way! I know the Parallax converter very well. It's impossible to charge one battery at 55A.
BTW, batteries that are nearly 100% discharged have a relatively high battery resistance. They will charge SLOWLY near 100% state of discharge.
mike4947 wrote:
As for a single battery drawing 55 amp I can say from experience yes. The battery may be almost 100% discharged but it will draw the full 55 amps. Not to mention the other loads the RV is using at "12 volts" drawing down from the 55 amps.
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RV daytrader
PA
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Salvo wrote:No way! I know the Parallax converter very well. It's impossible to charge one battery at 55A.
BTW, batteries that are nearly 100% discharged have a relatively high battery resistance. They will charge SLOWLY near 100% state of discharge.
mike4947 wrote:
As for a single battery drawing 55 amp I can say from experience yes. The battery may be almost 100% discharged but it will draw the full 55 amps. Not to mention the other loads the RV is using at "12 volts" drawing down from the 55 amps.
You should never let a battery go below 50% discharge....and at 50% discharge it will charge FAST up to 90% charged, then slow down for last 10%
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BFL13
Victoria, BC
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On some recent testing I did, with the 7355 supplying the battery bank (with fat wires) while the inverter on that bank was drawing about 90 amps, I had the 7355 going at 58 amps measured by Trimetric.
That was not the same thing as battery charging though. Perhaps you would get something of that effect if the battery were at 40% SOC being charged up by the 7155 and the furnace was on and some lights making a 20 amp draw at the same time, to get the 7155 going at full blast? Needs some real numbers, no idea.
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jauguston
Bellingham, WA
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I have a EU 1000i I have used to charge batteries for the last seven years and I have done lots of experimenting to see what I could get it to do. The short answer it will power a 40a three stage smart converter. It will NOT power a IOTA DLS/IQ4. It will power a PD 9160 with/Wizard IF you start the charge cycle with the Wizard set on the setting where the little green light is in fast blink mode. That keeps the draw low enough for the 1000 to handle it for the first hour of the charge cycle. Then the Wizard can be set where the light is on steady and it will handle it as the charge rate has tapered down. My 1000 has over a thousand hours on it and it still starts first pull. Great little generator.
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smkettner
Southern California
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jauguston wrote:It will NOT power a IOTA DLS/IQ4.
I understand a 45amp IOTA is out but a 30amp IOTA should be in the zone???
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Salvo
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The 30A Iota has a maximum output of 30A * 14.7V = 441W. With an efficiency of 80% and power factor of 0.7, input power is 441W / (0.8*0.7) = 788 VA. The 1000W generator shouldn't have any problems producing 800 VA.
BTW, I'm not saying the Progressive converter can't output 55A, it can with a resistive load, or connecting an inverter to it. It will not charge a battery at 55A though. Those are two completely different scenarios.
smkettner wrote:jauguston wrote:It will NOT power a IOTA DLS/IQ4.
I understand a 45amp IOTA is out but a 30amp IOTA should be in the zone???
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pnichols
Santa Cruz Mountains
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Quote:It will not charge a battery at 55A though.
Probably true most of the time for most wet cell RV batteries not in summer temperatures.
However, a 55% discharged AGM battery sitting in 80 degree summer heat will probably take 55 amps for an initial few minutes from a nominal 13.8 volt 55 amp converter if the wiring from the converter to the battery isn't too small.
Remember the higher the temperature that a battery (AGM or wet cell) is in, the lower a charging voltage can be to still serve as a "boost" voltage for the battery.
That's why our RV's 45 amp converter does so well taking care of our 200 amp hour AGM RV battery bank during the summer months.
The original poster's Honda 1000 and 55 amp converter will probably function better together in colder camping temperatures than in the summer months.
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RoyB
King George, VA
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Regarding how long it will take a 13.6VDC constant Voltage output Converter/Charger to charge your battery. This is a statement from the Progressive designs people doing a test to see how long it will take to re-charge a battery. You can see how long it will take 13.6VDC to return a battery to either 90% charge status or full charge status. Even if you get the EU1000i generator to run your single mode converter/charge can you live with around 40 hours to return your discharged battery to 90% charge status or 78 hours to return your discharged battery to full charge. This is why you may want to pick up a "smart mode" converter/charger like maybe the PD9155 or the IOTA brand. I dont reccommend the WFCO 8955 as I could could never get my new WFCO unit to go into 14.4VDC mode on demand.
PD ran this test on the amount of time it took a PD9155 (55-amp) converter/charger set to three different output voltages to recharge a 125 AH (Amp Hour) battery after it was fully discharged to 10.5-volts.
14.4-VOLTS (Boost Mode) – Returned the battery to 90% of full charge in approximately 3-hours. The battery reached full charge in approximately 11 hours.
13.6-VOLTS (Normal Mode) – Required 40-hours to return the battery to 90% of full charge and 78-hours to reach full charge.
13.2-VOLTS (Storage Mode) – Required 60-hours to return the battery to 90% of full charge and 100-hours to reach full charge."
Another approach might be to purchase a B&D VEC1093DBD 40AMP portable battery charger and use that to charge your battery instead of the on-board converter/charger unit. Of course you will have to find out if the 1000W generator will run the B&D portable charger.
Just more info to consider
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Ron3rd
Upland, CA USA
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Looks like the consensus is your Honda genny will work just fine, so go on your trip and have fun. Don't forget to post some pics.
Just my opinion, but you should probably run your genny a few hours every day to prevent your batteries from getting too discharged.
And don't worry that you bought the EU1000; in the future you can always sell it for close to what you paid and move up to a EU2000. You might just find the EU1000 is fine for you.
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