I currently am using a 9 watt on my camper. Will the 20 watt charge one 12 volt battery faster ? If so, can I attach both on the 12 volt battery?
1248100
Yes the 20 watt is faster. And you can put them both to the single 12 volt battery as long as they both go through the overcharge protector(s).
1555456
Hey thanks, lol. I asked this question quite some time ago. I went with the 20 volt. It works great. I agree with you as I have done very heavy tasks with this. I ended up buying an extra battery pack. I works great now.
1241904
You can do this but it will take a long time to fully charge. With only one generator, you will get about 0.1 amp into your 12V battery.
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.
142377
Hi Suzanne, for hookup to a single battery vehicle...keep it under 2500 watts. The bigger ones should only be used with dual battery diesel trucks. A 2000 or 2500 will power pretty much anything for you. I run a 50 ft. Cord into my house when i lose power and i just switch back and forth to different things. A 2000 will run up to twenty 100 watt lights all at once....just to give you an idea. But the secret to getting full potential is to use no more than 10 ft of welding cable from the battery to the inverter. Probably cost you 50 bucks and another few bucks for dual battery terminals. Inverters are really cool gadgets. Good luck...Steve Hi Suzanne, for hookup to a single battery vehicle...keep it under 2500 watts. The bigger ones should only be used with dual battery diesel trucks. A 2000 or 2500 will power pretty much anything for you. I run a 50 ft. Cord into my house when i lose power and i just switch back and forth to different things. A 2000 will run up to twenty 100 watt lights all at once....just to give you an idea. But the secret to getting full potential is to use no more than 10 ft of welding cable from the battery to the inverter. Probably cost you 50 bucks and another few bucks for dual battery terminals.... » Read More Hi Suzanne, for hookup to a single battery vehicle...keep it under 2500 watts. The bigger ones should only be used with dual battery diesel trucks. A 2000 or 2500 will power pretty much anything for you. I run a 50 ft. Cord into my house when i lose power and i just switch back and forth to different things. A 2000 will run up to twenty 100 watt lights all at once....just to give you an idea. But the secret to getting full potential is to use no more than 10 ft of welding cable from the battery to the inverter. Probably cost you 50 bucks and another few bucks for dual battery terminals. Inverters are really cool gadgets. Good luck...Steve « Show Less
582694
For a professional answer you will need to email ProMariner. But as far as I know the 20amp is only rated for three batteries at a time. But it would eventually charge the six batteries but it would be a slow process. I use the 20amp to charge two 100amp batteries on a Track Chair and it is fast.
2152361
I bought two of these batteries for my RV to dry camp. I have used the onboard charger converter with success but now use a Schumacher PSC 12500a pro series charger off my generator. The big difference is 40 amps vs 8 amps output of the RV converter, plus the Schumacher has an AGM setting. Very satisfied. Charger was bought from Amazon also.
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.
1979469
I have 2 and use them as a 12 v power supply, one for my airstream camper and the other to power a 12 v boat winch mounted on a davit, have had no problems with either
1625343
If your camp is large or small you will need to know how many amp hours that it requires to fulfill it's needs. I currently utilize two slr125's to power my small homestead. I can run this energystar notebook computer all night long. I can also run a couple of 12 volt dc lights all night at the same time. If you require much more than that I recommend doing some research into how much power you need and how much you are willing to spend. Watts equal amps times volts. If you are wanting to run AC appliances you will need an inverter. my laptop-60 watts 2 light bulbs-30 watts 90 watts divided by 12 volts equals 7.5 amps. To run my computer and two lights for a ten hour night it takes seventy five amp hours. Also take into consideration that deep cycle, lead acid, AGM batteries are very sensitive to cold weather and should never be exposed to freezing temperatures unless fully charged. As a rule of thumb always double what you need. Those winter months can be long. Have fun camping!
1140535
These connect to the supplied (or a replacement) charge controller which connects thru a fuse to your battery. If your generator also charges the battery then this charge controller simply will be over shadowed by the generators charger (as in at night). I have it connected this way and it works fine. (Both chargers in parallel with no issues.) I'm keeping this charge controller as a spare and have replaced it in my RV with http://www.midnitesolar.com/pdfs/spec_sheet_kid_frontBack.pdf. I ended up getting a total of 4 of these panels for a 400W system. The Kid essentially adds another virtual panel due to it's improved efficiency.
883032
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.
313387
For a battery of this size, I'd not go over 240 watt inverter. Actually, you can use any inverter (I got a 400 watt unit that came with a lighter plug as well as other wires), but I'd not connect up a load greater than that ~240 watts. I have at least 2 reasons. First, the lighter outlet that you'll likely want to use is for sure intended for under 20 amps (and maybe fused for only 10 amps). Secondly, the battery is likely rated "18 amp-hour" hinting it can give you 18 amps for 1 hour, or 9 amps for 2 hours, etc. For something needing just 1 amp at 120V the inverter will pull 10 amps at 12V from the battery making it last under 2 hours (or under 1 hour for 2 amps at 120V). I recommend against pulling power faster than it's rating (~20 amps) since I've seen statements in manuals like "Don't crank a car for even 5 seconds because the battery will overheat internally" and I think you're pushing your luck to expect more than that continuously.
370268
Some generators come with the ability to charge your 12VDC battery directly instead of powering another source to do it. In most RV's, the converter charges the battery as well as provides the power to the coach. This generator charges 8 amps to the battery directly, if you connect the charger. You will need to determine if the best charging source is from the generator or from another source like a converter.
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.
281232
hey Icepuck, did this work? Could you do same with a battery charger I am wondering? Im trying to run 12v lights off a generator and trying to find a solution... FF here too and rigging out a response trailer..
1845949
Yes that will work. I would recommend getting a 30 to 15 amp adapter and run two extension chords from different outlets. This will allow your entire camper to have power Instead of only half.