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? 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... » Read More 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? « Show Less
466629
A couple things. Your solar panels will not be able to keep with your battery's discharge if the discharge rate is higher than the charge rate. It might be able to slow it down but it won't keep up. This can be calculated (roughly) by the combined amp hours of your batteries, volts, and wattage of your system. Makes sense, right? Second, if your circuit is serial, your charge should be serial, too. You'd run the solar panels in series just like your batteries. The key here is a controller. Be sure you get a solar controller that is powerful enough to manage your system. This is an essential component and cannot be ignored. A couple things. Your solar panels will not be able to keep with your battery's discharge if the discharge rate is higher than the charge rate. It might be able to slow it down but it won't keep up. This can be calculated (roughly) by the combined amp hours of your batteries, volts, and wattage of your system. Makes sense, right? Second, if your circuit is serial, your charge should be serial, too. You'd run the solar panels in series just like your batteries. The key here is a controller. Be sure you get a solar controller that is powerful enough to manage your system. This is an essential... » Read More A couple things. Your solar panels will not be able to keep with your battery's discharge if the discharge rate is higher than the charge rate. It might be able to slow it down but it won't keep up. This can be calculated (roughly) by the combined amp hours of your batteries, volts, and wattage of your system. Makes sense, right? Second, if your circuit is serial, your charge should be serial, too. You'd run the solar panels in series just like your batteries. The key here is a controller. Be sure you get a solar controller that is powerful enough to manage your system. This is an essential component and cannot be ignored. « Show Less
466630
I would think so if you feed each one but I would use diodes in circuit and fuse it too.
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.
1293135
Batteries don't damage the inverter if they are connected the right way, you can have 1 battery or 20 batteries on your system, more batteries will only give you more backup time without hurting the inverter
453601
The batteries are ether 12 v or 24 v. The tracker automatically goes to the battery voltage. You will notice that the output of the tracker is twice as many watts on 24 v as 12 v. A 24 v system will work twice that of a 12 v system. The batteries must be wired for 24 v,the inverter must be 24 v and the backup charger must be 24 v. The panels must be wired in series to make more than 24 v. A system that works poorly on 12 v will work great on 24 v.
693766
Yes! It won't be overcharge on my home energy at 24hr 7d week all year round. It will be safe to charge with solar panel. It only charge on day time and night time none. As long it's a twelve volt charger to charge these batteries.
30436
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.
1852677
If I understand your question correctly. your requirement is for a 400 watts solar input and if 408 watts of solar input is ok, I am assuming your question is for an off grid system (charging batteries). Question is if your your charge controller can accommodate additional 8 watts of input or ignore this additional watts without damaging any of the equipment. Please check the documentation of your equipment (charge controller) if it will work properly with the additional power provided by the solar panels. Normally additional power provided by the solar panels is ignored, one should make sure that electrical specs are matched with the solar input with the charger such as input voltage 24v panel and 24v charge controller input. Output from the charge controller should be matched with the battery voltage such as 24v solar panel, 24v charger and 24v battery, if different use an MPPT charge controller which can accept higher voltage from the solar panel and charge a lower voltage battery such as 24v panel, MPPT charge controller and 12v battery. Hope I have answered the question.
1440870
Yes, but... Needs a 12 volt supply of current. 24 volt vehicles usually have two 12 volt batteries. So you would need to use the aligator clip power supply to isolate to 12 volts.
1901560
Yes the APS2424 runs off of and charges a 24 volt battery supply, if you check AC output when on battery power you must use a true RMS meter or you'll get wrong reading
31482
I have had four one hundred watt panels hooked up to this same charge controller for nearly a year and it works fine. At first, I had them hooked up with the panels at 12v and the battery bank at 12v, then I switched the hookup to two sets of two panels in series to put the panels at 24v with the battery bank remaining at 12v. I get a little more power out of the panels this way because a lower amperage means a smaller voltage drop between the panels and charge controller, even though the wattage from the panels is the same. It works fine. With an MPPT controller, the voltage of the panels is not dumped directly into the batteries so you can hook it up either way. If you hook the panels in sets to reach 24v, then your only limit is the 30 amps to the battery bank. Anything above that is simply lost.
426645
I don't believe it is a 24 volt charger per se but depending on which charger you have it can charge one or two 12 volt batteries at a timeSo one 24 volt battery noBut if two 12 set up for 24 volt yes
1407051
These are 12v panels. Unless you have a 24v mppt controller they should be parallel ( suggest to a combiner box ) feeding the charge controller which maintains the battery / bank state of charge. If these are your only two panels suggest a 20 amp (minimum) charge controller.
31411
If the two batteries in series will make 24 volts DC, no. The charger on this unit is a smart charger and will likely fail to properly charge your batteries. In all probability, it will charge non-stop until the batteries and/or the charger burn out. I suggest either a 24-volt charger/inverter with a voltage reduction to match your 12-volt gear or a stand alone 24-volt charger and disable the charger that is built into the inverter.Hope this helped.AU
883033
You should look at running 2 - possible 3 100 watt panels, if an upgrade for future look at 10 gauge panel wire, it seems your running 12 volt, but your inverter and charger will depend. I've got a 40 amp 12/24 charger but batteries will run at 12 bought in a kit with 6 100 watt panels but told to only run 5 as my 60 amp also takes 1600 watts if at 24, but running at 12 so 800 watts mix up and I was sent a 12 both are mppt, you can probably run 5-6 100 watts if you have 2/ 25 amps combined, if not mppt they will keep charging but at a lower rate will destroy your batteries if not in use all the time, go with 10 gauge wire you will be happier. You should look at running 2 - possible 3 100 watt panels, if an upgrade for future look at 10 gauge panel wire, it seems your running 12 volt, but your inverter and charger will depend. I've got a 40 amp 12/24 charger but batteries will run at 12 bought in a kit with 6 100 watt panels but told to only run 5 as my 60 amp also takes 1600 watts if at 24, but running at 12 so 800 watts mix up and I was sent a 12 both are mppt, you can probably run 5-6 100 watts if you have 2/ 25 amps combined, if not mppt they will keep charging but at a lower rate will destroy your batteries if not in use all... » Read More You should look at running 2 - possible 3 100 watt panels, if an upgrade for future look at 10 gauge panel wire, it seems your running 12 volt, but your inverter and charger will depend. I've got a 40 amp 12/24 charger but batteries will run at 12 bought in a kit with 6 100 watt panels but told to only run 5 as my 60 amp also takes 1600 watts if at 24, but running at 12 so 800 watts mix up and I was sent a 12 both are mppt, you can probably run 5-6 100 watts if you have 2/ 25 amps combined, if not mppt they will keep charging but at a lower rate will destroy your batteries if not in use all the time, go with 10 gauge wire you will be happier. « Show Less
1332100
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.
1014216
Each 24 volt ePVL-144 supplies a maximum amperage of (144watt / 24v = 6 amps) to the charge controller. Three of them wired in parrallel ( with proper blocking diodes) will produce a maximum amperage of 18 amps (3 x 6 amps = 18 amps) input into the charge controller Assuming you wire your batteries in a 2 x 2 bank for 24v @ 200 amp-hour capacity, you will need a 24volt charge controller capable of handling a minimum of 20 amps input. You may want to get a 30 amp controller for a little extra amperage headroom for safety. Your inverter needs to accept 24v input and have enough wattage on each outlet to power you desired equipment. Your battery bank has a maximum power output of ((24v x 100 amp) x 2 banks)= 4800 watts for one hour. It is not recommended to fully discharge the batteries or to run the battery bank at maximum amp capacity (200 amp hours in your case). AGMs should be discharged no more than 80% of thier rated power (100 amp-hour x 0.80 = 80 amp-hour). In your arrangement this reduces your useable wattage to ( 4800 watt-hours x 0.80 = 3840 watt-hours). I would say a 5000 watt inverter would safely handle you battery capabilities. The inverter needs to accept 24volt DC input and should be a true or 'pure' sine wave variety if you will be powering sensitive equipment like computers. You could use several smaller wattage inverters in a stacked configuration if you do not have the funds for the larger inverter. For example you could start with a 1000 watt inverter and add up to 4 more as your budget permits. Be sure to buy stackable inverters if going this route. Here is a link to AGM battery information http://batteryuniversity.com/learn/article/absorbent_glass_mat_agm Steve
691120
Yes, But that depends on how much you are drawing them down. If it is to just keep them charged up (trickle charge) definitely yes. For an example if you are drawing 5 amps per hr. for 10 hrs your batteries would need to be rated together at 50 amp/hr. Your charger and panel would be able to keep up to this But the sun doesn't shine every day so you could start to run out charge. and the batteries will drain down. The six months in summer it would be able to maintain the batteries. You just have to be able to put back into the batteries what you have taken out of them.