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pulpwood007

Hemphill, TX

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Posted: 03/16/21 09:29am Link  |  Quote  |  Print  |  Notify Moderator

I need to replace the WFCO converter that came with my trailer. Past experience with this brand has shown me poor longevity and charging cycles that can fry a good battery.

I seldom dry camp but would like to be able to charge my group 27 deep cycle battery from my Honda EU2000i generator.

In looking at several brands of converters (Progressive Dynamics, Boondocker), the PowerMax looks like the most cost efficient. I would like to run the generator to charge the battery and operate a few lights in the trailer at the same time. My calculation shows about 16 amps AC available from the generator. I can't decide if I can safely go with the 55 or 60 watt converter and not overload the EU2000??

I do want a converter I can lock into the "boost mode" to more quickly re-charge the battery. I am not interested in solar as I do so little dry camping.

Advice appreciated.

2oldman

NM

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Posted: 03/16/21 09:36am Link  |  Quote  |  Print  |  Notify Moderator

pulpwood007 wrote:

My calculation shows about 16 amps AC available from the generator. I can't decide if I can safely go with the 55 or 60 watt converter and not overload the EU2000??.
Perhaps a little electrical education is in order.

I think you mean 55 or 60 amp converter. And that's at 13+ volts, so it's not equivalent to 16amps at 120v. 60a x 13v = 780 watts so your 2000+ watt generator will be fine.

A few lights is virtually no load at all.

pulpwood007

Hemphill, TX

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Posted: 03/16/21 09:49am Link  |  Quote  |  Print  |  Notify Moderator

Sorry, typo on my part, 55 or 60 AMP converter.

Specifications show that the 60 amp converter draws 11 amps at 120vac. I calculate that as being 1320 watts (120vac x 11). I doubt that the EU2000 truly can supply 2000 watts, but I agree I probably can run a lot of lights with the additional 600 -700 watts.

2oldman

NM

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Posted: 03/16/21 09:52am Link  |  Quote  |  Print  |  Notify Moderator

pulpwood007 wrote:

Specifications show that the 60 amp converter draws 11 amps at 120vac. I calculate that as being 1320 watts (120vac x 11).
1320 watts in, and only 780 out? Something isn't right there.

mbopp

Henrietta, NY, USA

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Posted: 03/16/21 09:53am Link  |  Quote  |  Print  |  Notify Moderator

I have an IOTA-55 and routinely use my Honda 2000 for charging chores.


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time2roll

Southern California

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Posted: 03/16/21 09:57am Link  |  Quote  |  Print  |  Notify Moderator

Is this the WFCO that slides in the lower section of the electric panel? If so I recommend the BD 1245 MBA that slides in as an exact replacement. I would stick with 45 amps unless you have more than two batteries.

bestconverter.com/BD-1245-MBA-45-Amp-4-Stage-Main-Board-Replacement

Honda 2000 will easily run this converter.


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Gdetrailer

PA

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Posted: 03/16/21 09:58am Link  |  Quote  |  Print  |  Notify Moderator

2oldman wrote:

pulpwood007 wrote:

My calculation shows about 16 amps AC available from the generator. I can't decide if I can safely go with the 55 or 60 watt converter and not overload the EU2000??.
Perhaps a little electrical education is in order.

I think you mean 55 or 60 amp converter. And that's at 13+ volts, so it's not equivalent to 16amps at 120v. 60a x 13v = 780 watts so your 2000+ watt generator will be fine.

A few lights is virtually no load at all.


Your "assuming" the power supply is 100% "efficient" and has perfect "1" in the pf department.

No power supply is 100% efficient, typically efficiency will range upper 70% to mid 90%, and the rest is heat..

Read HERE for more information on switching power supply efficiency..

Read HERE for information on Power Factor.

Switching power supplies are not 100% efficient and most have a pretty low PF.. Both details means on some converters which do not have "active PF correction" can consume a lot more than 780W for 60A at 13V output..

A PD9160 or PD9260 (both are 60A converters) can consume as much as 1000W at 120V under full load due to having a low PF along with the typical efficiency loss.

2oldman

NM

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Posted: 03/16/21 10:08am Link  |  Quote  |  Print  |  Notify Moderator

pulpwood007 wrote:

My calculation shows about 16 amps AC available from the generator. .
The spec plate on the eu2000 should say 13.2.

time2roll

Southern California

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Posted: 03/16/21 10:11am Link  |  Quote  |  Print  |  Notify Moderator

Converters often have a Power Factor of 70% meaning they need an additional 30% of apparent or available power but they don't actually consume more power.

Xantrex white paper on power factor

klutchdust

Orange, California

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Posted: 03/16/21 10:19am Link  |  Quote  |  Print  |  Notify Moderator

Best Converter without a doubt. Plug and play, excellent customer service . Call them, tell them what you need. fixed my issues with my batteries boiling in my Class C.

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