Can this 2 panels be use to charge my 12vdc, 400 A/H battery bank through the use if MidNite MPPT 30 amp charge controller. And in series or parallel.
1027391
Late to the show, but yes, you can use these with a MPPT controller to charge a 12 volt system. With a PWM controller the excess volts would be wasted and you would not get the full wattage, but with a MPPT controller, it will convert the excess voltage into more amps, and get all the watts that can be squeezed out of these.
1027392
I dont think so bec these pannels are about 37 volts open. And are really 24 volt pannels under load. U need to read tge label on the back
1027393
Those two panels if in either series or parallel will still be over the max rating for the Midnite Kid 30 Amp controller. You can test this by using their Midnite Solar Kid Sizing Tool. However, the system will work if you switched your battery bank to 24v.Thank you,AW
1027394
Read the discription. U need 12 v pannels renology sells them. If u are changing the voltage to ac. Its really not advisable to do it at 12 volts. 24 or 48 is way better.
1220390
This panel can be used for 12v system, provided appropriate charge controller is utilized. One will need MPPT type charge controller.
1873944
I think you need to check your controller specs, but I know some controllers may just shut off to prevent damage. Also note these panels are higher voltage which may not be compatible with your controller. I bought a charge controller that won't work with these because the voltage may go up to 45V on these panels. Now I run two of these with the Morningstar MPPT 45A charge controller. Morningstar has a calculator on their site that will confirm whether a planned setup will work with their charge controllers or not. I am planning on adding one more panel to my setup. The 45A MPPT charge controller can handle 3 of these panels. Good luck!
2165897
I think a 20A would be the min I would hook up two panels to. I have 4 panels wired in series and parrallel to a 40A MPPT controller. The MPPT vs PWM is a different thing completely. You can google the difference between the two. I have had great luck and success with MPPT TRACER 3215RN Solar Charge Controller 30A 12V 24V EP I've used this one and the same brand in 20A. These are great panels and make power even in moonlight.
576629
If you have 4 250 watt pannels at 24 volts that is 1000 watts at 24 volts. That would be a total current into the charge controller of 41.66 amps which would be within the 45 amp limit. However on a 12 volt system it is charging the batteries at (1000 watts / 12 volts) 83.3 amps which is beyond the charger controllers specified ratings. If you went to a 24 volt system it would work otherwise you would have to have 2 of these (2 panels per charge controller)
264929
Is this the only panel in the circuit? If yes you could use as little as 10 amp charge controller.if you plan on adding I'd total the amps your panels produce....
186980
The panel can supply 12v dc. If your device can charge off of this voltage, you would be ok. Not sure how long it takes to charge though.
1969172
Yes- I have connected a 240w panel (30V @ 8amps) and also two 135w panels (total 35V @ 3.8amps each) and it works fine. The limiting factor that may cause the confusion is that the maximum output is 240watts (12V @ 20amps) if you are connected to 12V batteries. In my case, I was connected to a 24V battery bank and was dumping about 17amps at 26volts into the batteries when I had all panels connected (the 240W + 2x130w). For the money the controller works well. If you connect to 12V battery; 240w is maximum; if you connect to 24v battery you can get 480w. It doesn't support over 32 volts, so you can't use a 48V battery bank.
1921286
The short answer is that while these panels operate at around ~28 volts, they will have no problems powering a 12V system with the right charge controller. The days of matching your panels nominal voltage to your battery bank were obsoleted by MPPT charge controllers. To use an oversimplified summary- an MPPT controller takes whatever voltage and amps coming in from your panels and converts it to whatever voltage and amps your battery bank needs. (Worth noting "however," the closer your battery bank nominal voltage is to your panels the more efficient it will be). The significant price difference you will see on MPPT controllers is due to efficiency differences in this conversion, intelligence on charging the batteries, reliability, etc. MPPT controllers are very affordable and significantly increase efficiency to the point that outside of unique circumstances it's bordering on irrational to consider older PWC technology charge controllers that require you to match the panel voltage to your battery bank's nominal voltage (i.e., 12V panels to 12V batteries). A better question for you to ask and research yourself is "what is the best charge controller for these panels powering a 12V battery bank." Hopefully this helps. Good luck!
598514
I believe you are asking if you can mix panel types with this controller....no. You will need the MPPT type Morningstar controller.
933679
you will need a 10 amp charge controller for one of these or a 20 amp charge controller for two.The charge controller will have adjustable settings "you set"I suggest a renogy 30 amp pwm controller for three reasons it will give you room to add more panels its cheap under $35 and its all you would need to accomplish battery charging in 12 or 24 volt mode,I hope this helps
2233948
There are two types of charge controllers; PWM and MPPT. I have 3x 100w panels ran in parallel to triple my charge amperage. This maintains the panels at 12v, but triples the amperage. I have a 30a charge regulator, which is PWM. I have read, though, that MPPT is the newest and best charging technology available. The PWM regulators are cheaper, but you get what you pay for. My next charge regulator will definitely be a MPPT. Google it. You'll figure out the difference between to two. Just be sure that you size your regulator bigger than your solar panel array for room to grow, and so that you don't constantly put your charge regulator under too much stress from incoming amperage. Here's the charge regulator I purchased http://www.play.com/Electronics/Electronics/4-/46835087/789550567/TomTop-30A-12V-24V-Intelligent-LCD-PWM-Solar-Charge-Controller-Solar-Panel-Battery-Regulator/ListingDetails.html?_%24ja=tsid:13315|cat:46835087|prd:46835087&ef_id=Udt8FQAABKfxcsgO:20130709151438:s It works well, but now is starting to be a little troublesome with the display just after 9 months of use. Spend a little more money and get one that is MPPT, and make sure you have an LCD screen. It's nice to know the charge, draw, and basic voltage of your battery bank.
409642
If you are using 4 panels with this kit it only uses a 20 amp controller. You must be using a 24v battery bank to use up to 400 watts. Can you explain your situation a little more? We are a bit confused with what setup you have. Thank you. AW
2088335
I use my charge controller with a 12 volt converter, but I think you can put as much power in as you want,and that it will charge a 24 volt battery bank.Since I have 12 volt converter, I had to put all my 12 volt batteries in parallel, so as not to go above 12 volts and exceed the converters volts
2249727
I would keep the configuration the same because you will above 13 volts to charge the battery. If your looking for amperage in series, it's best to have a power capacitor wired on the 30 amp solar controller battery input side, and the output on the capacitor to the battery with a resettable 20 amp fuse on the red cable to the battery. The capacitor depending on the Faradays you pick, will act as solar storage and help the backup battery recover fast if your running an AC Inverter on the battery output cables. Remember these panels are only outputting at 35 watts, so the amperage is low and need capacitors for storage.
2242775
You won't want to connect the panel directly to a battery, as it could damage or overcharge it. The panel itself only provides a voltage, you need a charge controller between the panel and the battery. The one I used (http://www.amazon.com/gp/product/B001HWQZNQ/ref=wms_ohs_product?ie=UTF8&psc;=1) is not currently available, but should give you an idea of what to look for. You want a controller that can handle at least 30 watts and 17.5 volts input for charging 12v batteries.
955577
Actually neither. It delivers maximum power at 31.64V. This panel is made for working with an appropriate grid tie inverter, but it probably would work well for charging a 24V battery bank as well.