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Old 06-21-2016, 10:02 PM   #11
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I went with this one -- it's the same as what Renogy sells as their "LED" controller. I'm happy with it. Works well-- I have a 160 watt on the roof pulling in 9amps. I only lose .5 at the battery. That's pretty good for a pulse controller. Adjustable LCD 60A 30A 12V 24V Solar Panel Battery Charge Controller Regulator | eBay





Not too big--
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Old 06-21-2016, 10:04 PM   #12
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If you want a smoking deal on a good 160 watt US made, 25 year panel for about .90 a watt-- check this out. Adjustable LCD 60A 30A 12V 24V Solar Panel Battery Charge Controller Regulator | eBay I got mine in hand in 5 days. Great panel -- sturdy and delivers just under 9amps. Can't beat that.
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Old 10-07-2016, 03:46 PM   #13
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Don't cheap out on the charge controller. Spend the money on something that is proven. If you want PWM then look at Trimetric....
SC-2030 Solar Charger — 30 Amps Max- 12 or 24V PWM type - Bogart Engineering

If you want to go with MPPT I would get Morningstar.

Or go cheap and add an extra panel to the roof to make up for what you are loosing in the charge controller.
Whatever you get make sure the charge voltages are user adjustable so that you can program it for your specific battery. Not just generic lead acid or AGM settings.

Cheers
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Old 03-14-2017, 05:16 PM   #14
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As Subaru297 said x2. I went back and looked at a lot of the reviews for the SOLAR 30/30 and there are a lot of inconsistencies, yes even voltage issues. I would say that the voltage discrepancy is more than likely a software/firmware issue in the voltage/amp calculations.

If the controller is no longer under warranty, you could open it up and look for a POT (not that kind), it is a variable resistor that can be adjusted. Most voltage display units, especially the inexpensive ones have them designed into the circuit board. This is so that the Q/A (if they have one) can fine tune the voltage with a known voltage source, prior to shipping the unit.

Personally, I would invest in a good SOLAR charge controller, be it PWM or MPPT (of course I am partial to the MPPT controllers as PWM only uses 75% of the panels available wattage) and you will probably eliminate the voltage discrepancies. There is limited roof real-estate so I would go for more controller than adding panels to make up for the PWM losses.

How did you do the 22 panels at home. Did you go with Micro-inverters on each panel?

Have a GREAT EVENING!!!!

Don
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Old 03-14-2017, 05:50 PM   #15
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Update on that charge controller I posted above. It stopped displaying amps (though it continued to charge the batteries), so I got a refund. I bought a Zamp 30 amp charge controller, it is definitely a better controller as it's a 5 stage charger. It is more simple to read (as there aren't any smiley faces), and when I had a question I called the manufacturer in Oregon and spoke to one of the engineers that designed it. I'm sorry for ever posting that controller. You definitely get what you pay for.


https://www.zampsolar.com/charge-controllers
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Old 03-14-2017, 05:54 PM   #16
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Micro controllers at home
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Old 03-14-2017, 06:06 PM   #17
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Quote:
Originally Posted by JPBeck View Post

Micro controllers at home
Way too go!!!!!

Don
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EnGenius WI-FI extender, D-Link wireless (n) modem
MagicJack Internet Phone
2012 Ford F150XLT, EcoBoost w/3.73
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Our Solar Album http://www.jaycoowners.com/album.php?albumid=329
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