How can I get 400Watts output from this? Do I need multiple 12V batteries? If so how many batteries do I need?
1490073
Depends on amount of sun you get. ON a sunny day, it will produce 400 Watts. The storage for 400 W will require multiple 12 V batteries - you can figure it out by calculation Amps x volts = Watts Each battery has an amp rating. 12 V battery x amp rating will equal watts.
1490074
Youre going to need deep cycle batteries as far as output it depends on how manyamp hours the batteries have the solar panel should always charge of 400 watts if tHeres sun look online how to calculate Amp hrs depending on what ur running I can run some fans lights a tv and a fridge in my rv with two batt
1490075
I have 2 deep cycle marine batteries and they meet my needs I would recommend at least 2 maybe 3 depending on your needs. You should check with the manufactur who was extremely helpful to me.
703996
the inverter will work but you did not say what wattage it is. Are you making the 2 batteries into 12 volts? You will need a charge controller too.
1852677
If I understand your question correctly. your requirement is for a 400 watts solar input and if 408 watts of solar input is ok, I am assuming your question is for an off grid system (charging batteries). Question is if your your charge controller can accommodate additional 8 watts of input or ignore this additional watts without damaging any of the equipment. Please check the documentation of your equipment (charge controller) if it will work properly with the additional power provided by the solar panels. Normally additional power provided by the solar panels is ignored, one should make sure that electrical specs are matched with the solar input with the charger such as input voltage 24v panel and 24v charge controller input. Output from the charge controller should be matched with the battery voltage such as 24v solar panel, 24v charger and 24v battery, if different use an MPPT charge controller which can accept higher voltage from the solar panel and charge a lower voltage battery such as 24v panel, MPPT charge controller and 12v battery. Hope I have answered the question.
1658934
You should be able to use batteries since these only work with dc voltage which is the type of current batteries have. You will need a lot of double AAs since you need 36 watts and that would probably not last long anyway. If you need to use batteries, your best bet would be a car battery, it is 12 Volts and will last you much much longer and you can recharge it.
1422414
power's there, but you'd probably be better off just getting a 36v psu separate. A big buck/boost on this will either dirty up your power if you have other 12v devices on it, or be a loss in efficiency. I've used this with bucks to take it down to 5 to provide 12 and 5v with this. haven't gone up with it.
1493070
You will need at least a 400w, and for this model also a 12v 20A 6pin connector
1615008
Yes: you can hook up as many 12v batteries as you like. We have many of these with up to 4 batteries connected. IMPORTANT: If using 12v batteries, just be sure you hook them up in parallel, not series!!
342763
Just pick up 12 volts. Batteries are in series so just configure enough to get 12 volts and you're good to go.
748143
This is primarily a 12vdc device. You would need to set up batteries with an inverter to run your AC operated devices, and you will most likley need two or three panels to keep up with the demand. The batteries would need to be enough to run your heat lights all night I am guessing. Knowing (calculating) what your power demand is will be key to proper setup. That will tell you the number and capacity of batteries/inverter you will need and the charging demand you will need taking into account cloudy overcast skies (winter weather, etc..) when a solar panel is not as efficient.
748142
This is primarily a 12vdc device. You would need to set up batteries with an inverter to run your AC operated devices, and you will most likley need two or three panels to keep up with the demand.The batteries would need to be enough to run your heat lights all night I am guessing. Knowing (calculating) what your power demand is will be key to proper setup. That will tell you the number and capacity of batteries/inverter you will need and the charging demand you will need taking into account cloudy overcast skies (winter weather, etc..) when a solar panel is not as efficient.
649909
I need more information than you are supplying to help. In short 40 amp is about 400 watts give or take. I use this controller and have had very good results, however I chose to change my legacy system to 24 volt rather than stay 12 as it provides several advantages. By reducing the number of batteries in series it allows for a better electron flow assisting in keeping the batteries balanced. My Solar array consists of 3 250 watt 30 volt black panels I got from Amazon, they are in series feeding this controller. I have 8 390AH flooded 6 volt batteries, they are configured 4 in series with two banks of 24 volts in parallel. This configuration allows for a more even charge all my batteries are now testing at full charge. When I bought this place the previous owner had 6 batteries in a 12 volt configuration and I found that only 2 to four of the 6 were getting fully charged. The batteries at the negative end were absorbing properly but the farther down the battery array the batteries never fully charged. It also increased the amperage so I have now have more available power. I also have a 850 watt wind generator tied in parallel to my solar array running to this charge controller. Since I went to this configuration I have not run out of power once, making my bride happier. I can now run my welder and other power tools life is good. If you feel you truly need to add a second controller you simply parallel the output of the controllers together. Hope this helps.
883032
You should look at running 2 - possible 3 100 watt panels, if an upgrade for future look at 10 gauge panel wire, it seems your running 12 volt, but your inverter and charger will depend. I've got a 40 amp 12/24 charger but batteries will run at 12 bought in a kit with 6 100 watt panels but told to only run 5 as my 60 amp also takes 1600 watts if at 24, but running at 12 so 800 watts mix up and I was sent a 12 both are mppt, you can probably run 5-6 100 watts if you have 2/ 25 amps combined, if not mppt they will keep charging but at a lower rate will destroy your batteries if not in use all the time, go with 10 gauge wire you will be happier.
2045491
I agree with Paul depending on how much reserve battery power you have will dictate how long you can pull 800W. For better service I advise to use bigger wire to connect to battery and shortes length possible, 4 awg or 2 awg if need to be longer wire with ring termals. Unless you have a big battery bank reserve best to keep plenty of 12V power to batteries. There is a formula to calculate the load online
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
2117254
You could buy a AA battery pack that could fit 8 of them which would make it 12v but it wouldn't last very long. There are longer lasting 12v batteries out there but biggee and heavier which you still need to recharge. If you are constantly draining and recharging, you'll have to consider a deep cycle battery. So it depends on your application
1138806
I have the 200 watt unit, which is the most you can run through a power outlet. For 400 watts, you would have to directly wire to the battery. I would use the fuse they recommend.
1112970
You need a 36V lead acid or lithium battery pac to power it. Three 12V sealed lead acid wired in series will work.