That's all the CHARGING circuit of your Heart is capable of putting
out. The 1000W is for the INVERTER in it, not the little 10A charger.
1000W/14V= 71Amps. That's gonna be one BIG charger!



On 9 Oct 2003 19:10:53 -0700, (mitch) wrote:

Can't believe I'm the first person with this problem, but did a couple
searches and turned up nuttin...

Have a 1000 Watt Gasoline Yamaha generator connected to a Heart
Interface Freedom 10. Batteries are a pair of 8D gels in parallel,
old but servicable. Monitoring system by Ample Power.

Hook 'em all up, and with batteries at about 50% (12.1 to 12.2) I get
a MAX of 15 amps DC, call it 180 watts into the batteries. Swapped
generators, EXACT same output. A visiting cruiser suspected that the
Heart is REALLY inefficient at generator-based power charging. Maybe,
but 20% efficient sounds a bit loony...

I am currently at anchor for awhile, so the purpose of the Yamaha was
to not require using my Perkins 4-108 with 150 amp alternator in order
to keep my beer cold; I'd rather save my engine for propulsion. But
when I do use the engine to charge, it works as expected based upon
state of charge - 130 amps initially, 3 stages, yada yada.

Ideas?

SV KOMFY
American Samoa


Larry W4CSC

3600 planes with transponders are burning 8-10 million
gallons of kerosene per hour over the USA. R-12 car air
conditioners are responsible for the ozone hole, right?