I have a 24 volt battery back up for a repeater that operates at 24 volts, with two 12 volt batteries in series, can a solar panel be put on each one of the batteries to help maintain the charge when we loose AC power?
1060823
look at it like this . a regular battery charger has a lot of power. a nice powerful solar cell will hardly light up a flash light bulb. the only way a solar cell is going to charge a battery is over a long length of time as a trickle charge. the trickle is relatively so small that it really does not matter if you put 12 or 24 volts on the battery. it's still a trickle. i put six solar cells (powerfull ones) on one battery. it charges faster but there is really just not enough power to fry a car battery. just make sure your diodes are good so that the battery will not discharge over night. the answer is yes though, and the more the better, and forget v. & i. regulators unless you have a yard full of cells again you are not generating that much power, probably, if you are like me. - i like all paralel at 12 v. though. i have no need of a 24 v. source.
68502
Yes.After much research and experiments with it;I have discovered that the key is how much amps that your battery is rated as is the key to performance. A 12v,100 amps battery is good and connect a small solar panel to re-charge your battery.The instruction manual provided by the company was not properly written nor block diagrams drawn for the lay.
2284815
You are more likely to over charge the battery with a 12 volt unit. Just ensure the whole solar array is in the sunlight for optimal charging.
338119
Actually, if you set the output voltage and amperage limits using the trimpots. Once set, it will govern the output to whichever limit it bumps into first. So if you set the max charging current to say 500ma @ 24v then it will reduce the voltage to stay at/under 500ma while never allowing the voltage to exceed 24v. In theory, if you set the voltage to just under you battery's fully charged voltage and then set the current to a sane limit it should float when charged. For 'back' feeding to the solar panel, just put a diode in-line on the output. You can think of diodes like little check valves. ;)
759374
Hi, Yes, you can keep this system connected to the solar panels or you can purchase a wall ac charger that you can plug into a wall ac outlet to keep the system charged. We offer the wall chargers on our website. Thanks
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.
810193
I used 2, 12 volt solar panels about 150.00 each and it works good on 24 volt. I was pumping only 60 foot though and 12 volt was too slow. Buy the 12 volt solar panel with the controller it sets it at 24 volts, 2 12 volt batteries and that worked ok. I also ran a 12 volt electric fence charger off of one of the batteries.
616969
This is why I hooked my 520 watts of panels in series so you halve the amperage. I can add another 2 panels in the future and still keep it under 30 amps. Remember too that the charge controller can charge a normal 12v battery bank, that's what mine is. I recommend making a 24v panel setup.
273940
Can't help on the solar panel. I have used the 12v option off of my house batteries. The unit worked fine
148161
Of course friend, the panel is high efficiency, full sun generates 22 volts, you need a charge controller 12 Volt so you do not overload the system, it will keep you charged and when the battery is charged, disconnect, which prevents damage to your batteries!
2210299
You're not going to be able to charge 24 volt batteries off that panel its nominal 24 not enough charge amount
243759
I used this panel to keep the batteries charged for my gate opener. If you use this make sure you cover it to block the sun until after everything is connected. IE: Load controller and the load, batteries also if you are charging them. This panel puts out around 28V so it will fry anything that is not going through the controller. I charged to motorcycle size batteries, 24V kept them charged. Am going to use it now to keep the batteries charged on my Quads, I will reset the charge controller to use 12V instead of 24V Great little trickle charger and it will maintain your battery, Not meant to recharge the battery just maintenance. I used this panel to keep the batteries charged for my gate opener. If you use this make sure you cover it to block the sun until after everything is connected. IE: Load controller and the load, batteries also if you are charging them. This panel puts out around 28V so it will fry anything that is not going through the controller. I charged to motorcycle size batteries, 24V kept them charged. Am going to use it now to keep the batteries charged on my Quads, I will reset the charge controller to use 12V instead of 24V Great little trickle charger and it will maintain your battery, Not meant... » Read More I used this panel to keep the batteries charged for my gate opener. If you use this make sure you cover it to block the sun until after everything is connected. IE: Load controller and the load, batteries also if you are charging them. This panel puts out around 28V so it will fry anything that is not going through the controller. I charged to motorcycle size batteries, 24V kept them charged. Am going to use it now to keep the batteries charged on my Quads, I will reset the charge controller to use 12V instead of 24V Great little trickle charger and it will maintain your battery, Not meant to recharge the battery just maintenance. « Show Less
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.
152793
I would say most likely not because as the batteries recharge the unit would bounce on and off as they recharge/discharge. Solution is to increase your battery bank size. My APS1000-12 has been working for over 2 years 24hr a day. But I have a bank of 12 batteries and monitor it daily to prevent totally discharging them down to 10.5 volts. This time of year my solar panels don't produce the amps as in summer months... It's a great unit but remember for every amp produced on the 120 volt side it pulls 10 amps on the 12 volts side.
1024381
YES. WE SELL THEM FOR THAT PURPOSE, HOWEVER IF YOU ARE USING THE BATTERIES FOR ANY PURPOSE, THIS 7 WATTS WILL NOT KEEP UP. SOLAR HOWEVER IS ALWAYS A FUN EXPERIMENT. IF 7 WATTS WON'T KEEP THE BATTERIES CHARGED, ADD MORE WATTS (PANELS) (OR LARGER WATTAGE PANELS). YOU COULD CHECK OUT OUR INFORMATIVE WEB SITE AT www.sites.google.com/site/solardoityourself, or even call me directly at 305-900-09596. thank you
426996
Yes you can hook them up together in parallel and the voltage will remain the same but the amperage will be 4 times that of one panel. You will definitely need a charge controller with what is going to amount to 80 watts of panel input to the battery. It might be helpful to know more specifics about what you plan to do. If you want to just keep a battery up this is far more panel than you need. If you plan to use the battery daily to power things than 80 watts may or may not be sufficient depending on the size of the battery, the wattage/amperage draw of the loads, and how much daily sun you anticipate. There are a lot of variables. You will also definitely need fuses for fire safety. Hope this helps. BTW, it might be cheaper to buy a singe 80 watt panel as opposed to four 20 watt panels.
925844
The short answer is, "Yes." You could connect the output of the solar panel to a 12 volt battery bank. The battery bank will recharge. HOWEVER, if you don't either monitor or regulate this, you will damage the battery bank from overcharging it. Specifically, if you could manually check on the voltage very couple hours, you could disconnect the solar panel when the voltage reaches full charge. or you could get a charge controller that is wired in between the solar panel and the battery bank. This inexpensive device will both optimize the charging current to the battery and will stop the charging when the battery is full.