I am using 690 watts and i have a 12 volt battery. Will this panel be able to charge the battery continuously while i am using the 690 watts?
1504010
It will only supply at best 100 watts so if you are taking out 690 watts constantly you will run your battery down. Think of it this way... since you are taking $590 out of the bank and only putting in $100 you run out of money! What are you trying to run? The amount of time you run the appliance is a factor too.
1504011
If you are talking using 690 watts in a 24 hr period, yes it will for the most part, weather permitting. It's PEAK power is 100 watts. That's per hour. I use this panel in one 12v battery, providing power for my lap top, matress inflator, razor, tent light, phone charger, etc. And I'm rarely below full power. I saw a video where one of these panels could run a 4 cubic ft frig with two deep cycle batteries, but again that depends on the weather. I use mine camping, weather and location considered, I would not bank on mine producing more than 900 watts a day. That's a guess as I haven't monitored the system that closely. If you are talking using 690 watts in a 24 hr period, yes it will for the most part, weather permitting. It's PEAK power is 100 watts. That's per hour. I use this panel in one 12v battery, providing power for my lap top, matress inflator, razor, tent light, phone charger, etc. And I'm rarely below full power. I saw a video where one of these panels could run a 4 cubic ft frig with two deep cycle batteries, but again that depends on the weather. I use mine camping, weather and location considered, I would not bank on mine producing more than 900 watts a day. That's a guess as I haven't... » Read More If you are talking using 690 watts in a 24 hr period, yes it will for the most part, weather permitting. It's PEAK power is 100 watts. That's per hour. I use this panel in one 12v battery, providing power for my lap top, matress inflator, razor, tent light, phone charger, etc. And I'm rarely below full power. I saw a video where one of these panels could run a 4 cubic ft frig with two deep cycle batteries, but again that depends on the weather. I use mine camping, weather and location considered, I would not bank on mine producing more than 900 watts a day. That's a guess as I haven't monitored the system that closely. « Show 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.
1504013
Shure under perfect conditions and if you purchased another six 100w panels. These panels only produce like 5.5 amps under perfect conditions. Also you would need more than a 40 amp charge controller. As 5.5 times 7 panels (for a total of 700 watts) is 42 watts continuous and would over heat the controller.
1504014
No... it is a 100 watt panel so it will not keep up with the 690 watt demand. Either buy more panels or a bigger panel.
1786605
This is a good solar panel. I have 2 batteries connected parallel, + to +, and - to -. This gives me the same voltage- 12 volts. I run my garage door opener and some accessories in my garage off a power inverter. The Ramsond solar charge regulator shuts off when batteries are full. Like T.J. said, make sure you aim the panel for best results, and hopefully its not foggy where you keep your boat!
2171698
I can only tell you what I did. I have a 400W inverter and a 12V car battery. I use this in my small horse barn that I wired for three bulbs and an outlet. There are 3 small watt bulbs. The panel keeps the battery at full charge with no problem. I don't use the electric all the time, and for only short periods when I do, so I don't know how long the charge will last.
1331536
If you match the proper size batteries to your panels through the right size charge controller you will have no problem charging the batteries. The generally accepted ratio is 1 1/2 watts of panel per amp hour of battery for a productive charge. This unit is not a charge controller. This is a 12 volt power inverter that converts the 12 volt power in your battery to 120volt ac for common use. I have one of these. It works ok for the money but it doesn't produce very "clean" electricity.
914975
The short answer is YES, if connected in parallel.... BUT if you are trying to charge a 12V battery system then you will be losing about 70% of the panel power and I highly recommend contacting us to size you into the correct MPPT controller. Obviously you are getting a lot of incorrect or incomplete information. IF you are charging a 48v battery bank then this controller is fine. ML SOLAR
917556
the link that you sent me is for the mounting kit. there are several panels. they are all 12 volt and range from 7 to 100 watt.I use the 100 watt panel to charge 2 12 volt batteries in a small camper. It works well.
1332096
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. 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... » Read More 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. « Show Less
1771873
Power (watts) = E (voltage) x I (current in amps), so 12 volts x 40 amps =480 watts. 480 watts/250 watts/panel = 1.925 panels. With the panels only producing 250 watts in perfect conditions, and with the efficiency factor of the panels multiplied in, plus the loss on the wire between the panels and the charge controller, it looks like your charge controller should be able to handle 2 panels, barely. Only 1, barely, if you run at 24 volts.
243040
Frank, i have a Renogy catalog on front of me and don't see a 350 panel. This must be something new. And by 30amp charge controller I assume a PWM charge controller. Your panel can be 12 or 24v not both, unless this is something really new. You might try one of the solar forums or email Renogy support. Don't call tech support because i tried. Don't. Ok? Try Northern Arizona wind&sun or midnite solar forums. Also midnite solar has videos on youtube about everything. You should be able to charge a 12v battery with a 12v panel and charge controller-period. Unless the battery is no good. Put a voltmeter at the output of panel then the output of charge controller. Good luck.
796339
only if you use a 12v charge controller and have you batteries wired in series. the output of the panel under load is a bit over 24v.
1450265
yes the voltage output will vary with the amount of sunlight. I have my panels setup to produce a max of 36 vdc charging a 12 vdc battery bank. your charge controller needs to match your projected final system capacity, if there is a possibility of adding on later. I have a mix of 144s and 88s
1832903
No. Two panels on one battery will not work. Waste of money only one panel needed if using as a maintance charger. If looking at using as a power supply to a cabin this is not the setup you will want. Would need larger panel and controller for that purpose. This unit is strictly a 1.25 amp charger for maintaining a battery in storage. Like my old beat up pickup that is used once or twice a month and sets outside all the time. Keeps the battery in top shape and counter acts the lite drain of the factory radio and computer in modern vehicle.
1637053
Yes. I have the Goal Zero Nomad 7 Solar Panel, which puts out 7 watts of power and I charge these batteries with it via the 12v attachment and it works great!
386081
If your 10 watt solar panel will keep your 12 v. battery charged it should work.
1285306
Should work if you wire it properly see the following web page on how to wire two 6 volt batteries to equal a 12 volt battery. As the Panel is strictly for charging 12 volt Batteries. you have to make it think the two 6 volts are a 12 volt battery. http://www.solarrvpanels.com/index.php/wiring-rv-batteries-properly/
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
25763
I think you mean amps, not watts. It is supposed to trickle charge slowly. Borrow or buy a3 amp charger for this battery. 10 amps would ruin it.