Can this be used to charge a 100 ah 12V deep cycle battery? How do you get from 24V to 12V? About how long would it take in full sunlight to charge?
990636
Battery in question is 100ah x12v = 1200 watt hours. This panel can provide 144 watts per hour for battery charging purpose. Rule of thumb batteries should not be drained more then 50% or maximum 80% otherwise battery life will be compromised, so we will consider 600 watts to be charged. 600 watts divide by 144 watts = 4.16 hours. Since this panel is 24 volt and your battery is 12v - MPPT charge controller is highly recommended. MPPT charge controller can accept higher voltage (24~36 volt) from the solar panel and charges a lower voltage battery (such as 12v). Morningstar SS-MPPT-15L will be a good charge controller for this setup. Battery in question is 100ah x12v = 1200 watt hours. This panel can provide 144 watts per hour for battery charging purpose. Rule of thumb batteries should not be drained more then 50% or maximum 80% otherwise battery life will be compromised, so we will consider 600 watts to be charged. 600 watts divide by 144 watts = 4.16 hours. Since this panel is 24 volt and your battery is 12v - MPPT charge controller is highly recommended. MPPT charge controller can accept higher voltage (24~36 volt) from the solar panel and charges a lower voltage battery (such as 12v). Morningstar SS-MPPT-15L will... » Read More Battery in question is 100ah x12v = 1200 watt hours. This panel can provide 144 watts per hour for battery charging purpose. Rule of thumb batteries should not be drained more then 50% or maximum 80% otherwise battery life will be compromised, so we will consider 600 watts to be charged. 600 watts divide by 144 watts = 4.16 hours. Since this panel is 24 volt and your battery is 12v - MPPT charge controller is highly recommended. MPPT charge controller can accept higher voltage (24~36 volt) from the solar panel and charges a lower voltage battery (such as 12v). Morningstar SS-MPPT-15L will be a good charge controller for this setup. « Show Less
990637
I have a diesel pusher with 4 deep cell 12 volt batteries what complete kit would I need to kept the batteries up in a no electric campground ? thank you Joe
990638
I believe in a crude way it will work because the battery should clamp automatically the voltage down. However, this can only be a temporary solution. The charge controller is indeed the way to go. Try midnight solar
990639
You'll need a 24V solar charge controller, hooked up to the solar panel and then to your battery. In full sun, it will take about 20 hours to fully charge a 100 AH battery. However, you should not let your battery get much less than 50 percent of capacity between charges.
990640
You can charge your battery. You will need to get a charge controller to convert 24V to 12V. The controller will also prevent overcharging of the battery. Get a controller rated for 10 amps or more. I don't know how long it will take to charge one battery. This is a powerful panel, and would likely charge in one day or less.
990641
could you not just buy another battery and hook both batteries in parallel?
2023950
Yes, this past summer I used an old 12 volt car battery, but the system was turned on for about 10 hours at night-time only. For my situation, I simply charged the battery once a week. It worked fine, but a deep cycle battery would be preferred to avoid the need for frequent charging.
1766040
I don't see any reason why you cannot trickle charge a 12 Volt DC battery with the solar panel. Although it will maintain a fully charged battery ,however, it will not charge a weak or dead battery. I presume that answers your question.
362722
I charge my deep cell battery with 100 watt solar panel! Lenbo flood light is connected to battery. I'm sure you can connect two! Very bright!
765122
Hi -- I am an electrical engineer and I use this panel to keep the three full size 12V deep cycle batteries wired in parallel on my camper charged. It does a really good job and I do not use a charge controller. I mount the solar panel vertically facing south so that in the summer when the sun is high in the sky and the temps are warm it receives less solar input, but in the winter the sun angle is low and I get relatively more charge and any excess battery heating will be less of a concern. The panel seems to be very good quality and has held up fine outside in Park City UT for over 9 months. The current from the panel in full sun should nominally be 5w/12v = .42 amps, which may be a little high for trickle charging a small motorcycle battery. Check for your battery specs on line. By mounting the solar panel vertically it will generate less current in the summer and avoid overheating. You can also probably mask the panel with tape to reduce output if needed. Also, I don't think charge controllers are too expensive for this size panel so that is an option. Hope this helps. ---Dan in Park City UT
864560
The inverter requires a 12v source it does not have a rechargeable battery in it. You could bring along a 12v battery and use that as a power source, but pulling 1200 watts from a battery is 100 amps, so it would drain a smaller sized battery in minutes if not less.
1504012
No This provides 100 watts so to run this many watts would take 7- 100 watt solar panels & that would give you 10 watts to charge your battery under full sunshine. However I am new at this so you may want to consult some other people with more knowledge on this matter.
1308634
you will need a car or marine battery and a power inverter to convert DC to AC current power tools draw more current than lights or stereo depending on wattage consumption you will run down the battery rather quickly panel is like a 5 amp trickle charger which will charge the battery but again every 100 watts draws 10 amps so do the math at night with no sun the battery will discharge in about 1 1/2 hours for every 100 watts so again do the math and put multiple panels and battery"s in parrallel to acheive desired output hope this helps you
1882084
Voltage setting is Automatic. Connect to battery first so Controller can determine the Charging Voltage. Then connect the PV Panels.We usually use 24V Battery Bank, so I cannot say how well it works on 12V.
955578
I can confirm Renogy Solars answer (it'll work with either 12V or 24V battery banks). I use this panel with a MPPT controller and a 12V battery bank.
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.
935733
According to the description, the voltage is limited to 14.7 during the bulk charge phase, so it should not damage the battery. The main issue is the 3.3A rating. This won't hurt the battery, but it may take quite a while to charge a large battery. I suggest the following charger: "12 Volt Battery 7 Stage Smart Charger: VMAXTANKS BC1215 12V 15A Fully Automatic Smart Charger for VMAX Solar Series Batteries (SLR60, SLR85, SLR100, SLR125, SLR155, SLR175)".
1157682
If you plan to use this with an inverter attached to the solar charge controller, the amount of current being drawn from the battery is dependent on the solar charger and the inverter. the solar charge cotroller i use does not allow for more than 20 to 25 amps (300 ac watts). If you run the inverter directly off of the battery, you can use larger wattage inverters. The simplest way to use these panels is to hook them to the solar charge controller and hook the batteries up to the charge controller. Then hook the inverter of your choice up to the batteries. I use a 2000w samlex sine wave inverter. This covers refrigeration and recharging sensitive products. If you plan on running these to your electrical panel, you need an electrician to figure that out. I used these panels for my solar generator project. They worked great. The 2 panels combined give you about 10 DC amps of continuous power (about 120 watts of continous power). Without getting technical, It would take about 8-10 hours to charge a 100 amp hr deep cycle battery. How long that battery lasts depends on how much power you draw. Definitely can't run central Air conditioner with 120V. You can run a fan, lights, refrigeration. Your limitation will be the alternate current 120V inverter and the max continous wattage.
723301
Sure so long as voltage is correct. Depending out output power it may take a LONG time however to charge a deep cycle battery
2088335
I use my charge controller with a 12 volt converter, but I think you can put as much power in as you want,and that it will charge a 24 volt battery bank.Since I have 12 volt converter, I had to put all my 12 volt batteries in parallel, so as not to go above 12 volts and exceed the converters volts
1538718
You will need a deep cycle battery, or battery bank. 12 or 24 V will both work. You will need an inverter, best to get one rated for 2X the wattage you use. If you used 2.5kW get a 5kW inverter, these need to match your battery/bank in Voltage. 12V is cheaper for both batteries and inverters. However, you can just run two 12V in series to get 24V. 24V charges faster and uses less amps. Thus, is more efficient. Yes, this can be hooked directly to your breaker box. You may also want to get an inline fuse to go between the battery/bank and inverter. Inverter max watt/10. 2kW = 200 amp fuse.
993087
Really depends on the size of the battery. It puts out 1.8 amps, so if nothing else is pulling it down , it should charge in a day of direct sunlight.