NEED BIG help choosing Charge Controller/controllers please?

[Bigmotoxer]

The panels are flat mounted to the roof? Makes sense if that is the case because the angle is far from ideal

I'll see once I get it 100% ,hoping for 120'ish amps but I'll see n report back.

[Mike90250]

Guys I keep saying that despite the math and any other factors, with my system, with 4 panels to one CC at the height of the day delivered 50amps(maybe 51). I was there I recorded it. So , not in theory but in factual actual reality, with 4 more panels to one other CC I will be receiving exactly 100amps to battery bank(maybe 102).

But since the max amps the largest controller can put out is 93A (Midnight) you still need 2 controllers, or else you live with 1 controller running in current limit mode for several hours daily, which will likely cook it quickly. (in a couple months).

[Bigmotoxer]

But since the max amps the largest controller can put out is 93A (Midnight) you still need 2 controllers, or else you live with 1 controller running in current limit mode for several hours daily, which will likely cook it quickly. (in a couple months).

Yes one CC if I go up to 24v , two CC if I stay 12v. I'll probably buy 2, use 2 at 12v, ..then go up to 24v after I get more $ to purchase 24v inverter. Then I'll have a spare CC just incase Its coming together, ..slowly lol

[Bigmotoxer]

Btw does anyone know of a decent high amp(50amp maybe) 110v(generator or house powered), 12/24v battery charger?

[lkruper]

Btw does anyone know of a decent high amp(50amp maybe) 110v(generator or house powered), 12/24v battery charger?

A 1600w inverter generator like my Smarter Tools for about $600 gives 133 amps @ 12 volts.

[radareclipse]

Btw does anyone know of a decent high amp(50amp maybe) 110v(generator or house powered), 12/24v battery charger?

I use a Craftsman Platinum. It has 2, 15, 40 and 125 i think are the levels. It is not a floor standing model. It has battery type choices which include their Platinum AGM battery. I've used my pretty often to maintain a few cars that dont get driven enough. They run about $89-99.

[Bigmotoxer]

A 1600w inverter generator like my Smarter Tools for about $600 gives 133 amps @ 12 volts.

Your inverter generator give 133 amps? Or are u saying that u plug a charger into the generator?

[lkruper]

Your inverter generator give 133 amps? Or are u saying that u plug a charger into the generator?

Yes, here it is on Amazon -> http://www.amazon.com/Smarter-Tools-...5%3A2470955011

You can also get a parallel cable and combine the output of the two of these together. It can sustain 1600 watts, and 1600 / 12v = 133 amps, however I would suggest running at 1/2 - 3/4 capacity for best efficiency. It does have DC output as well, but I would get a good three-stage charger and run it off the generator. I suppose you could also get a DC-DC charger but an AC charger would be more versatile IMO.

[Bigmotoxer]

Yes, here it is on Amazon -> http://www.amazon.com/Smarter-Tools-...5%3A2470955011

You can also get a parallel cable and combine the output of the two of these together. It can sustain 1600 watts, and 1600 / 12v = 133 amps, however I would suggest running at 1/2 - 3/4 capacity for best efficiency. It does have DC output as well, but I would get a good three-stage charger and run it off the generator. I suppose you could also get a DC-DC charger but an AC charger would be more versatile IMO.

I already have a Yamaha 3000 inverter generator. But I'm looking for a charger to plug into it....that will charge my 1200a.h. battery bank if ever need be.

[radareclipse]

This is the newest equivalent version of what I have.

http://www.sears.com/diehard-platinum-125a-shelf-battery-charger-engine-starter/p-02871327000P?prdNo=2&blockNo=2&blockType=G2

[Bigmotoxer]

I don't know if 40amps will charge my 1200ah battery bank. I've seen some commercial units that charge @20/50/80...Expensive tho.

[Mike90250]

..... It can sustain 1600 watts, and 1600 / 12v = 133 amps, however I would suggest running at 1/2 - 3/4 capacity for best efficiency. ........

That is just a simple wattage calculation, not real life. A charger will have more loss, both Power Factor & Efficiency losses
The very best one I can quickly find for 24V (28V needed to charge 24V battery)

http://www.iotaengineering.com/dlsui2740pfc.htm

40A @ 28V, about 1,242w input consumption. Much higher input needs to go to 240V because standard household outlets are not rated for higher power long term.

For 12V, I have a VEC1093 12V Charger (now branded as Black&Decker) and it has a 40 or 50A mode.


SPECIFICATIONS DLS-UI-27-40 CONVERTER / CHARGER
DC Output Voltage (No Load) approx. 27.2V (DC)
Output Voltage Tolerance (No Load) + or - .5%
Output Amperage, Max Continuous 40 Amps
Output Voltage (Full Load) approx. >27.0V (DC)
Maximum Power Output, Continuous 1100 Watts
Ripple and Noise <100 mV rms
Input Voltage Range 108-264V (AC)
Input Voltage Frequency 47-63
Maximum AC Current @ 120VAC 11.5 Amps
Power Factor (@ Full Load) >90%
Typical Efficiency 80%
Max Inrush Current, Single Cycle 75 Amps
Short Circuit Protection Yes
Overload Protection >100%
Line Regulation 100 mV rms
Load Regulation <1%
Fan Control Proportional
Thermal Protection YES
Working Temperature Range 0°- 40°C
Storage Temperature -20° to 80°C
Withstand Voltage (VDC)* 1700/1700/500
Dimensions 13" x 8.3" x 3.4"
Weight 9 lbs
Input Cord** IEC C-14