More Solar for "Us"
Ok, I went off.the deep end? Bought 3 used 37watt uni-solar panels and a blue sky 2000e controller for the hefty price of $400, They were being listed as 75w panels, they are not The tested open...
Forum Discussion
CA Traveler wrote:
BTW Wiz what I interpret from you posts is that your batteries are never fully charged by your solar so no apparent down side to maintaining the voltage.
But for reference your situation is not typical. ie For a discharged battery use bulk charging voltage and when the batteries reach the bulk end stage they start reducing amps while the controller maintains the bulk/absorb voltage. Then when the amps reach the float level the voltage is reduced.
So what I get from your posts is a very unique situation which should not necessarily be a guide for others.
BINGO.. give the man a beer
i've over 600w of Solar, but this time year doesn't come even close too supplying daytime use AND recharge from overnight use
in summer it supplies more and comes closer
everything i've done with the solar and batteries, is document in this thread
just reading the part about the controller change then criticizing the operation of the system, and the care of the batteries
is just guessing, with out knowing the facts of daily operation
i never suggested what i was doing is for everybody
if i had 3000w of solar and an OFF grid stick house battery bank of several thousand amphrs, things would be different
the pictures of my control settings,
were too show, what can be done, what can be changed, what i have changed
not a proposal of what somebody else should do
and depending on which 'battery guru' you wish to follow
AGM batteries are fully charged when they reach less than 1 amp per battery at 14.8v charge rate
or 0.5% charge rate at 14.8v
my bank of (5) batteries is 675 amp hours
that means full is some place between 5amps at 14.8 and 3.75amps at 14.8
pretty narrow range huh?
they aren't full, when taking 4 amps at 14.2 or floating 13.2 because vtab reach 14.4 and shut off
most days the solar output drops off before reaching that point
'No reason' for premature float stage based on 60 minute timer turning off boost
strange i changed those setting over 3 months ago and put up pictures
and just got all these postings in the last few days
the controller data says operation 111 days
it did take me a little while to settle on those settings
but a few more days will be 4 months of operation
