Could I hook up 45watt solar panels to the controller during the day, and then hook up a 12v 3amp power supply to the controller at night?
1957390
You can as long as the controller is rated at 45 watts. You will boil your battery dry if it isn't rated correctly. The three amp power supply is fine, it will not boil your battery dry. Battery tender has a help line and they are great to talk to.
1957391
No. The solar charger is expecting a solar panel. A solar panel in sunlight puts out much more than 12 volts and the charger will regulate that down to provide the optimum power delivery to the battery. A 12V 3A supply won't put out enough voltage to charge the battery even if it was connected directly.
1957392
Some solar panel controllers need to have 5 volts above operating voltage to 'start' operating so you may need a 17volt 2.5 amp PSU to get correct nominal 12 volt operation. I have used a 7 amp solar power controller on a mains electric Generator's 12 volt 'battery charging' output that was putting out 16 or 17 volts and was able to charge a sealed lead acid battery at 14.4 volts.
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.
598514
I believe you are asking if you can mix panel types with this controller....no. You will need the MPPT type Morningstar controller.
2129614
It will depend on how you plan to connect it to the charge controller and what the total amount of watts of panel you are connecting. So no, but you would need to check.
408146
YUP, its a solar panel. you would need a 24v controller capable to hook up to 130w so its under 10 amps per.
362721
i use the solar to charge a battery then run 12 volt lights off batteryif your using during day try itu may have to add battery for more reserve
712397
No..... and maybe.... The point of using the controller is that with small loads less than the rated amperage, when the battery is fully charged, your load is being supplied with power from the solar (bypassing the battery). This allows the charge controller to float charge the battery and also power your device.... If you are drawing lots of power through an inverter, then yes, you will need to connect directly to the battery.... Just FYI - the unit I got had an UN-replaceable fuse.... I had to create a work around to solve the problem....
1771956
This controller will handle up to 30amps. So for example, I have 3 panels at ~145w each (~7.5 amps) that are connected to each other and run to this controller. Since I'm only bringing in max around 22 amps, then this one controller is plenty. I could actually add one more panel to it of the same size as my current and it should continue to work fine. To answer your question though, yes, if your panels are large enough to put you over 30a with two panels, then run them side by side and connect the two controllers to the same battery bank without issue.
1796517
Yes you will need a controller a panel this big would quickly destroy the battery. When it is dark your battery will not discharge any faster than it would naturally.
1069973
Yes, just connect it independently to the batteries(not through the solar charge controller).
49229
You can use this controller for 12v but there will be power clipping. The best controller would be the Outback FM-80 for 1KW solar panels charging a 12v battery bank.Thanks, ML SOLAR
1427326
So long as the supply can handle the amperage, yes. One unit that I received came with a pigtail (the one that included a light strip but no power supply), the 'controller only' did not.
480361
You can hook up a 30 watt solar panel directly without a solar controller. I posted a picture of my set up in the customer images section. If you had a regular 30 watt solar panel instead of the Goal zero like mine you could skip one of the wiring components.
286632
You can pull 12volts power from the load terminal as long as the rated current is smaller than 5Amp as the charge controller can handle.
974747
Yes you can however you will need a controller capable of handling both panels. Most small inexpensive charge controllers handle 7 amps or less. Two 60 watt panels will produce more than 7 amps on a sunny day.
94032
This model will handle a maximum of 100 volts of DC output from your solar panels, so your 48 volts is well withing its limits. If your system uses 12 volt batteries, which is most common, and your panels produce no more than 130 watts of maximum power (260 watts if your electrical system is 24 volts) this controller will do the job well. This is a great little controller and I'm totally satisfied with it, and the price is very fair.
1332100
The charge control can handle up to 7A. Your 30 watt panel puts out ~1.68A at high noon. You should be fine with one charge controller charging two or more batteries and it would require more charge time. Just make sure you hook up your batteries correctly. Personally and for convenience I would much prefer to get two charge controller with two solar panels for the two batteries so that I could avoid having to move and or reconnect the batteries. A larger solar panel can would benefit you quite a bit if you need to drawn power from the battery each night. Hope you are using deep cycle batteries.