Can two panels be connected in parallel to recharge a 12V battery?
827819
Yes they can, they are basicly like a battery. The only thing you will need to watch is that the charge controller will handle the increased amperage. I am running 2 of them with a 10 amp controller (overkill) with no problems. Pricewise, if you haven't purchased these panels yet you could probably get a 50 watt panel cheaper.
827820
yes I don't see why it would not work, you should use a charge controller to prevent overcharging
1626067
you can connect it in parallel (+ to +, - to -) for double the capacity at 12 volts or in series (- on one battery connected to + on the other battery) with the output being 24 volts. I used a small insulated wires with crimped male and female connectors you can get at just about anywhere such as auto parts to Walmart, Home Depot, Amazon etc. Just be careful to have tight connectors without any paths causing a short or ground. Good Luck!
1199495
I don't think so. I tried to charge 2 12 volt batteries together for your same reason but that didn't work.
30434
Yes BUT... You have to buy a charge controller that can "step down" the 36 volts from the panel to 12 volts for the batteries. Look at Morningstar controllers and or go to Morningstar's website to get the specs on an appropriate controller for your application.
1969172
Yes- I have connected a 240w panel (30V @ 8amps) and also two 135w panels (total 35V @ 3.8amps each) and it works fine. The limiting factor that may cause the confusion is that the maximum output is 240watts (12V @ 20amps) if you are connected to 12V batteries. In my case, I was connected to a 24V battery bank and was dumping about 17amps at 26volts into the batteries when I had all panels connected (the 240W + 2x130w). For the money the controller works well. If you connect to 12V battery; 240w is maximum; if you connect to 24v battery you can get 480w. It doesn't support over 32 volts, so you can't use a 48V battery bank.
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.
726051
you can connect them series and parallel to get output voltage of 48V. If you get a shadow on one of the panels, it will greatly decrease output. You also need to be careful of the guage and length between the CC and panels and the CC and the batteries. Voltage drop in low voltage DC is important. A wonderful resource is handybobsolar.wordpress.com.
232357
I am using the panel connected directly to a large, deep-charge battery, and it works OK. You can go through a controller if you are worried about overcharging your battery.
1532432
Yes you can. Depending on how long you want to run them & the amount of wattage you will be pulling out of the battery pack you can figure out how many panels and batteries you will need.
224904
This panel would be like a trickle charger to maintain your battery between charges.
1332099
Depends if you connect the controller to the panel then you could connect it to each battery but not both at the same time.
279697
Yes. Two solar chargers would be needed. Please make sure both batteries are fully charged prior to connection. It is also recommended to disconnect the batteries from any possible draws.
1573750
You'll need a charge controller so the connection will be: panels>controller>batteries>inverter
492823
I would not advise that as hooking up an inverter to one battery while two batteries are in 24v could be harmful to the battery's lifespan. I would suggest 24v on the panel side and 12v on the battery side. Please let us know if you need further clarification. Kind Regards, AW
1786604
Yes, this panal has the capacity to charge your batteries, just remember, the 20w is at optimal environmental conditions, sun, angle positioned ect...I always connect in parallel. You didn't mentioned the 'what' you are utilizing the batteries for...heavy watts out, need more watts in. Good luck!
1832905
No.The circuitry is designed to look at the battery conditions (voltage, current draw etc.) and another charger in parallel would confuse that.If you need more power, you need to buy a larger charger or get multiple solar panels and feed those into Delran's separate solar controller.
1220390
This panel can be used for 12v system, provided appropriate charge controller is utilized. One will need MPPT type charge controller.