If you have 700 AH house batteries, 70A is the standard charge (10%)
for 14 hours (from "dead", about 1.150 specific gravity).

But, if you hit a poor 130AH deep cycle with 70A trying to charge it
quicker, all you'll do is cause gassing and loss of water, while
overheating and warping the plates and case plastic.

Please don't charge any of them over 10% of AH capacity to get the
best charge without endangering the cells.......otherwise all you get
is a "surface charge" without deep cell restoration. The voltage will
come up quickly, but you still won't get a good charge.....

On Sat, 18 Oct 2003 00:17:41 GMT, "David Q. King"
wrote:

So the Xantrex inverter I have, DR1512, is a 1500 watt inverter with a
maximum of 70 amps charging capacity. There is a knob to adjust the maximum
rate of charge. Perhaps Heart does something similar? A quick look at the
heart data sheet on the Xantrex web site says the Freedom 10 inverter
charger is 50 amps. http://www.xantrex.com/support/docserve.asp?id=269

The manual http://www.xantrex.com/support/docserve.asp?id=431
says you have a two bank charge capacity. The "echo-charge" bank charges at
15 amps and is intended for the starting battery. Perhaps you want to review
how the Heart is setup.

Good luck!
David, KJ7PF


"Larry W4CSC" wrote in message
...
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?




Larry W4CSC

US Supports Apartheid! Vetoes UN resolution
condemning Apartheid Wall.
http://www.antiwar.com/hacohen/h052103.html
http://www.theage.com.au/articles/20...917478560.html
Can apartheid at home be far away?....
Apartheid NOW! Wall off Mississippi!