With the system I want to set up I have four Sharp 250W panels open ckt V 37.35 Max power V 29.98 short ckt A 9.03 max power A 8.34 I want to set up the system at 24V with eight Trojan T105 batterys, was thinking of paireng up the panels into two of these charge controllers then to the batterys sound feasable? With the system I want to set up I have four Sharp 250W panels open ckt V 37.35 Max power V 29.98 short ckt A 9.03 max power A 8.34 I want to set up the system at 24V with eight Trojan T105... » Read More With the system I want to set up I have four Sharp 250W panels open ckt V 37.35 Max power V 29.98 short ckt A 9.03 max power A 8.34 I want to set up the system at 24V with eight Trojan T105 batterys, was thinking of paireng up the panels into two of these charge controllers then to the batterys sound feasable? « Show Less
640863
I would be more inclined to get a single outback charge controller for a little more money than spend on 2 of these controllers.
1947081
Wont' work. You'll burn out the charge controller, which is rated to about 500W maximum. I'd suggest an Outback controller instead (FM60 or FM80). We've used this Tracer2210RN for smaller installations up to about 400W max. We've also used five other controllers of various capacities and like the Outback series the best.
1947082
Should work it is pushing the controller hard but I am doing (1) 255 watt panel with a 12 volt system and works fine good luck.Lon
352792
Throwing in my two cents. Get two for this. It'll work fine for awhile for you the way you want to do it, but ultimately, your battery is going to lose charge 'cause you will be running close to max on the panel all things considered unless you are in bright sunlight all the time. Plus, over time, your battery is not going to charge as efficiently. My 100W Grape tests at 5 amps in good sunlight. But then there's nighttime....:-) I run an off grid system, and am going to get a second panel just because of those cloudy days. An MPPT controller will help maximize your charging too. I haven't gotten one of those yet. Throwing in my two cents. Get two for this. It'll work fine for awhile for you the way you want to do it, but ultimately, your battery is going to lose charge 'cause you will be running close to max on the panel all things considered unless you are in bright sunlight all the time. Plus, over time, your battery is not going to charge as efficiently. My 100W Grape tests at 5 amps in good sunlight. But then there's nighttime....:-) I run an off grid system, and am going to get a second panel just because of those cloudy days. An MPPT controller will help maximize your charging too. I haven't... » Read More Throwing in my two cents. Get two for this. It'll work fine for awhile for you the way you want to do it, but ultimately, your battery is going to lose charge 'cause you will be running close to max on the panel all things considered unless you are in bright sunlight all the time. Plus, over time, your battery is not going to charge as efficiently. My 100W Grape tests at 5 amps in good sunlight. But then there's nighttime....:-) I run an off grid system, and am going to get a second panel just because of those cloudy days. An MPPT controller will help maximize your charging too. I haven't gotten one of those yet. « Show Less
31482
I have had four one hundred watt panels hooked up to this same charge controller for nearly a year and it works fine. At first, I had them hooked up with the panels at 12v and the battery bank at 12v, then I switched the hookup to two sets of two panels in series to put the panels at 24v with the battery bank remaining at 12v. I get a little more power out of the panels this way because a lower amperage means a smaller voltage drop between the panels and charge controller, even though the wattage from the panels is the same. It works fine. With an MPPT controller, the voltage of the panels is not dumped directly into the batteries so you can hook it up either way. If you hook the panels in sets to reach 24v, then your only limit is the 30 amps to the battery bank. Anything above that is simply lost.
550350
More important than the wattage for this system is the voltage. You need to make sure that your panel puts out a voltage that's in the range of this inverter. This inverter operates from 10.8-30v, so in low sun when you're below 10.8v it will not operate. Conversely, if your panel puts our 30v, you will be putting to many volts through this inverter in direct sunlight. Also remember that it is a 600w peak inverter, so if you put 3 200w panels on it, you're operating it at full peak efficiency. I try to keep my 600w inverters at 540w of panel or less. This increases efficiency and also extends the life of the inverter. When you do expand, you have to decide whether you will wire your panels in parallel (to double the wattage), or series (to double the voltage) If you want to wire in series, you need a bigger inverter, if wiring in parallel, you can only really safely put one more 200w panel on this inverter. Hope this helps.
1447152
I would not design a system with parallel battery charge controllers. I would combine the panels (or strings) using a combiner box and then wire it to a single battery charge controller. If the 40 MPPT is not big enough, go to a larger charge controllers, they come in all sizes. Very large systems may need multiple charge controllers, but then they have to be sophisticated enough to not fight each other. The Tracer is a good controller, but not a sophisticated charge controller.
243040
Frank, i have a Renogy catalog on front of me and don't see a 350 panel. This must be something new. And by 30amp charge controller I assume a PWM charge controller. Your panel can be 12 or 24v not both, unless this is something really new. You might try one of the solar forums or email Renogy support. Don't call tech support because i tried. Don't. Ok? Try Northern Arizona wind&sun or midnite solar forums. Also midnite solar has videos on youtube about everything. You should be able to charge a 12v battery with a 12v panel and charge controller-period. Unless the battery is no good. Put a voltmeter at the output of panel then the output of charge controller. Good luck.
1873945
These panels put out 5.25 amps each, so a 30 amp controller should be able to handle five of these panels. A charge controller is used to keep your batteries from being overcharged and as the battery state of charge increases, the controller allows fewer amps to get by it. A solar array that exceeds the capacity of the controller could cause system damage. Do not confuse volts and amps, remember that you are working with DC rather than AC, and short circuiting across the positive and negative wires is to be carefully avoided.
971648
I'm taking a big gamble and have boughten 2 of these 60 watt systems to power up a remote cabin in upstate new york.Mostly lighting and a 12 volt water pump.Very conservative use.Lights will only be on where I need them.My questions are:will a cloud covered winter sky still produce a trickle charge from these panels?We can go weeks without a sunny day.I also will have to keep the snow and ice off the panels.Should I set up two completely seperate systems or should I tie both together on one battery bank?Can I also hook a regular battery charger to the batteries in conjunction with the solar chargers? I'm taking a big gamble and have boughten 2 of these 60 watt systems to power up a remote cabin in upstate new york.Mostly lighting and a 12 volt water pump.Very conservative use.Lights will only be on where I need them.My questions are:will a cloud covered winter sky still produce a trickle charge from these panels?We can go weeks without a sunny day.I also will have to keep the snow and ice off the panels.Should I set up two completely seperate systems or should I tie both together on one battery bank?Can I also hook a regular battery charger to the batteries in conjunction with the solar... » Read More I'm taking a big gamble and have boughten 2 of these 60 watt systems to power up a remote cabin in upstate new york.Mostly lighting and a 12 volt water pump.Very conservative use.Lights will only be on where I need them.My questions are:will a cloud covered winter sky still produce a trickle charge from these panels?We can go weeks without a sunny day.I also will have to keep the snow and ice off the panels.Should I set up two completely seperate systems or should I tie both together on one battery bank?Can I also hook a regular battery charger to the batteries in conjunction with the solar chargers? « Show Less
752590
it really will depend on the specs from the panels you choose but i would say if they are similar to something like the renogy 100 watt panels you could run at least four for sure and possibly more depending on the actual output from each panel. if i was running more than 400 watts of panels i would probably start looking at some of the mppt charge controllers so you can get the most out of your system.
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
1981056
It depends on where you live and how much sun you get. Based on 140W 24/7 the 300W "kit" won't be enough. That doesn't mean you couldn't do it with more panels. Just don't buy a "kit". That comes with a dedicated charger for the wattage the kit comes with. Check on line or with someone who can give you the calculations you will need for wattage and but individual panels and then size a charger for your needs. I had to do the same. The panels that come with the kit are top notch and can be bought by themselves.
1283052
145watts *2 panels is 290watts --- 290watts / 12volts = 24.16amps under max sunlight and optimal conditions. Youll need to use 2 charge controllers or one that can handle 48.34amp. 2 charge controllers will work together to get the batteries charged. I currently am useing 3 with my 840watts and get about 70amps to charge 9 115amp/hr batteries.
565615
I have 10 Trojan T-105 6Volt 225 AH Batteries, if you just buy 1kw solar panels then I suggest you use 6 6volts batteries or three 12v batteries
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
1224563
i used 12 gauge from the solar panels to the controller and from the controller to the batteries i used no 6 awg i already had here The no 6 is probably overkill i wouldnt go any less than 8 from the controller to the batteries what is your battery bank at least 24v i hope
1814779
I would run anything above 5 fared, You are running 4600w a 3 is too low, Usually 1 fared is equivalent to 1000w aprox.and if your lights are still dimming, I would get a better efficient battery, I hope this is helpful.
1210704
Maximum input wattage to the controller for a 12 volt system is 400 watts and max as a 24 volt system is 800 watts, so 4 250 watt panels would exceed maximum input for the controller. Hope this helps.