Can multiple charge controllers be paralleled together for a 40 amp setup? If so, how do you wire them together?
1049311
Only if you isolate the batteries for each controller, thus having 2 20 amp systems. Get a 40 amp controller.
1049312
My 2 cents: I would assume not. The output of the controller is a voltage generator, and it is not possible to put in parallel voltage generators, only current generators
1616609
I have two of them wired into the charge controller via "RENOGY® 20ft. Adaptor kit Solar Cable PV with MC4 Female and Male connectors Connecting Solar Panel to Charge controller". Works great. Make sure the controller can handle the amps.
590438
You can reasonably connect 4 panels at 128 Watts and 24 Volts each using this spider. Connect the single lead to a 10AWG cable (sold separately from Amazon) and then to your charge controller. This is my set-up and the set-up of many other responders here. So, to answer your question, I believe the four conductors may not be 10AWG, but the single one I believe to be 10AWG. All stranded. I used the MC4 connectors sold separately from Amazon.
1056070
Dear customer, you will need a branch connector if you want connect two panels in parallel. You can find the product here:http://www.amazon.com/Branch-Connectors-Connector-Solar-Panel/dp/B00BCWRB48/ref=sr_1_2?ie=UTF8&qid=1376241228&sr=8-2&keywords=MC4+Branch+connector You will also a Adaptor cable from the MC4 branch connector/MC4 connector to the charge controller. The length is to be decided by you. Thanks.
1591681
Hello, Since this unit is 50 watt you can use at least a 5-10 amp controller. If you want to add more panels in the future you may want to consider a 30A controller. Other than the panel you also need cables to run from panel to controller and cables to run from controller to a battery/set of batteries. Let us know if we can help with anything else. Regards, AW
716278
If you connect four 10 amp solar panels in parallel the resulting output would equal 40 amps +/-. Realize that the output ratings are under ideal conditions. Cloud cover, sun intensity, location of the panels are some factors in output efficiency. The output voltage can exceed 12 volts which is one reason a charge controller is needed. Make sure your charge controller is rated to handle your combined output.
167999
I have ganged two of these 30A supplies together in parallel to provide 60A. I did this using two high-current diodes to prevent one supply from pushing current into the other (because the two supplies will have slightly different voltage settings. You can up regulate the voltage settings on the supplies to offset the 0.6V drop across the diodes. This works fine for me; I usually draw a total of about 55 amps from the pair, but in initial testing they did produce 60 amps. I did not run them at 60Amps for very long however. Garrett Odell
1696515
If you plan to add more panels, you will need to use a bigger charge controller or stack another charge contorller. This charge controller only only fit 240W and 480W for 12volts and 24volts system.
1051501
Yes, but the answer is not as simple as connecting the batteries in parallel. Because each battery has slightly different capacity and internal resistance, over time, you will get uneven charges between them. The charge controller will stop charging once one of the batteries gets full, leaving the other not-fully changed. The result is reduced capacity, that is, you will not get twice the capacity of individual battery. The solution is to insert battery balancer between controller and batteries. See this wiki page. http://en.wikipedia.org/wiki/Battery_balancing
1771955
I have 40 amps of power so I have 2 controllers tied parallel to my batteries. Yes, you can use two separate solar arrays connected to two controllers. Just make sure that your solar panels stay under 30 amps per controller.
1146456
Yes, you can make into a parallel wiring without any problems. This will increase overall battery capacity (50 + 35 = 85 ah) If that is what you are looking for.
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
2004338
I don't advise to do so! Something chaotic? Keep the same impedance at each outlet. Wish it were furnished by a DMP to test it!?
763248
Besides this kit you would need a tray cable that connects your controller to the battery bank. Since you would are doing 400 watts on a 40 amp MPPT we would recommend adding a 40 amp fuse in between the controller and battery.
1140535
These connect to the supplied (or a replacement) charge controller which connects thru a fuse to your battery. If your generator also charges the battery then this charge controller simply will be over shadowed by the generators charger (as in at night). I have it connected this way and it works fine. (Both chargers in parallel with no issues.) I'm keeping this charge controller as a spare and have replaced it in my RV with http://www.midnitesolar.com/pdfs/spec_sheet_kid_frontBack.pdf. I ended up getting a total of 4 of these panels for a 400W system. The Kid essentially adds another virtual panel due to it's improved efficiency.
951683
I'm sure if you read the owners manual for the charge controller it will answer your question regarding voltage and amps.
1074720
You don't need another 30 amp controller. 2 more panels would only put you at 28 amps, and I've never seen a panel that puts out its advertised amperage anyway.