#98251  by NeilV
 Mon Aug 17, 2015 9:51 am
Good as an idea, but so far I've been able to leave the mess that the main bus harness is totally alone, so I'll prabably just use them when I can either parallel the batteries, or charge directly from the solar.

Separate question: that "very cheap battery monitor" thread has me interested in getting one for my 24v system, esp as it purports to do upto 90v...

When sizing a shunt, w=va, so a 100a shunt for 24v should easily handle my 1200w 24v inverter right?
Last edited by Mark on Mon Aug 17, 2015 10:05 am, edited 1 time in total. Reason: Redundant quote of immediately prior post.
 #101080  by NeilV
 Fri Oct 09, 2015 10:10 pm
So it seems the 500w solar is quite overkill at present (late sun, lowered light use, not yet onto installing the peripherals like satellite dish and TV... House Batteries are now floating at 27.7 (dbl the 13.7-13.9 recommended for 12v system??) and reach floating voltage by 10am. Loving the increased sunlight hours, but struggling to 'use' them :-T

Is 27.7 my ideal float for 24v (2x12) AGM's?
 #101084  by Neddy
 Sat Oct 10, 2015 6:34 am
Most 24v AGM batteries have an ideal float voltage of 27.2v - 27.6v.
27.7 volts is quite acceptable, but you should check the manufacturers recommendations for your particular batteries.

Neville.
 #101089  by scubadoo
 Sat Oct 10, 2015 7:53 am
NeilV wrote:So it seems the 500w solar is quite overkill at present...
No such thing Neil. ;)
There will be many future occasions when you wish you had much more.
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