Can I charge 12 &amp; 24 v. using this? also, do I need to buy an extra wire to go to the charge controller?
574680
Sorry, but this system can be used only for 12V system. And you would need to get some additional wire to connect controller.
332306
Yes 24V, 0~3A should be fine. My rule of thumb, for 24V or less, keeping the current below half the AC current is fine.
1233769
I believe you will need two panels connected in a series for a 24 V system. My panel puts out 18.99 volts max, not enough for a 24 volt battery. hope this helps.
1878731
I bought some extra wire but didn't need it. Just spliced in to the existing wire. I already had a 5 amp panel. It wasn't enough to keep the battery charged. So the short answer other than wire you shouldn't need anything
1123835
I agree with most all said here before. Get 2 12v batteries in series = 24v, or 4 6v and hook up in series but controller is best way to go to match your solar panel. Most quality solar panels will charge 12v and 24v. Get a volt meter and check it out as you go. A fuse is a must. Good luck
1474601
this is a 24volt charger. I think you need to find a 12volt charger to meet your needs.
1233767
The solar panel voltage must be higher than the battery voltage you are charging. A 12Volt (open-circuit about 18 Volts) solar panel will not charge a 24 volt battery.
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.
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)
2193075
Greg:I am very pleased with the inverter I have. I have the 24volt unit and my panels are wired, two in series to get 24 volt, back to trunkline to the inverter and then to grid. This utilises all the voltage they put out. If you are connecting to batteries your charger will hold the panels at 12volts and you will need wire up for 12 volt.calvinm@galaxycable.net
1563644
I use it to charge and keep the charge on a 12 volt 7AH battery and it works fine. No need for a charge controller because the amps it puts out are very low, so you should be just fine.
838605
Positive wire and negative wire go directry into special plug in the controller, then two tray wires (sold separately) go directly to the battery positive and negitive. Easy as putting batteries in a flashlight. Renogy had a utube video. It's so easy. If you wanted to later add more cells, you would need a bigger controller, if you wanted more than 200 watts of solar cells then you would need another battery. If you wanted to plug something in using ac power you would need an solar power inverter. As far as a DC ground, a battery is 12 volts, as long as you use 12 volt items you should be dandy!
1112790
if you have 12v batteries in series your adding to the voltage therefore your batteries together are 24v not 12 anymore. if they are in parallel then you will still have 12v just double your amp hours. this charger says its for 12v only i wouldn't recommend it.
317801
Your charge controller needs to be able to handle 48v input...Morningstar TriStar can, and the Renogy PWM 30 Amp w/LCD can also. Check out pvdepot.com and batterystuff.com-- both have good info for sizing your system correctly.
861838
I used standard 14 gauge house wire from the panel to the controller and from the controller to the battery. This is ok, because there isn't alot of amps (raw power) being pushed from the panel. With 12v systems, the more raw power (amps) being used, the thicker the wire needed. You can even use regular copper twist wire, just don't go smaller then the wire the panel uses.. which I think is either 14 or 16 gauge.
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
1411592
Hello,If you are charging 12v nominal battery bank you can input up to 400 watts of solar power.If you are charging 24v nominal battery bank you can input up to 800 watts of solar power.The wiring configuration of the 800 watt panel setup must be done so that you do not parallel all of them or not series all of them or else the panels will either go out of the 100 VDC or the 40A rating.The 800 watt setup must be wiring in series/parallel.Please let us now if you have any further questions.Regards,AW