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Author Topic: Honda EU1000i DC circuit regulation?  (Read 596 times)
KF6IIU
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Posts: 293




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« on: October 23, 2007, 02:53:13 PM »

Before I go out and spend $20 on their proprietary power cable, has anyone used an EU-series generator to charge batteries using the DC output? Is this output regulated in any way?

Or am I better off just buying a (smarter) AC-powered charger?

The EU1000i can supply 900 watts or so steady AC, but only 8 amps DC. According to the manual, the DC is produced by a separate, dedicated winding, which means it is probably not terribly well regulated and designed to be used only in a pinch.

If you've taken voltage / current measurements during a charge that would be very helpful.

-w
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KI4TMM
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« Reply #1 on: October 24, 2007, 05:16:17 AM »

We used a Honda 2000 to charge the house battery bank (though mostly solar and wind) on our boat while living in the Caribe.  The 110 converter to 12 vdc was faster and provided a better charge profile than just straight DC. It is more effective to use a converter/charger like the iota, heart/Xantrex to recharge the batteries.  

The converter will proved a greater level of amps and the control system will manage the charge levels so as to quickly recharge your batt without over or undercharging.  This increases the life and the usable amps from the battery after the charge. The 12vdc will just dump the power into the batt at a continuous level and it will be up to you to manually manage the charge level. Doing this becomes a way to over or undercharge, not to forget the increased time to recharge do to the reduce amp out at dc.  Plus I like the automatic approach.  When we heard the genset drop to complete idle I would check the monitor and if it was floating it was done.  Simple.

Also don’t forget to use the power saver mode as it slows the genset down as the load demand decreases.  It really increases the fuel efficiency
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KB9CRY
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« Reply #2 on: October 24, 2007, 06:18:22 AM »

The EU is noted for it's clean power supply.  I've used mine on both voltage types with no problems.  Also, very quiet.
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