is there a limit to what size battery it can charge?
1337390
It comes down to voltage...not size. If your battery is 12volts size does not matter. Larger amp hour batteries take long to charge but provide more amp hours. This the perfect size for most RV windows. That means if it snows your batteries still get a charge.
1337391
No Limit. As long as the battery is 12V and it is like the one in your car, boat or in RV.
1337392
Repoleved pretty much answered the question. It depends on how much you use the battery and how much you drain down the charge. Mine runs a circulation pump for my solar water heater. I have a 12 boat (deep cycle) and it always seems to keep it charged up. When my panel arrived it had a cold solder joint and I had to re solder it to make a good connection, and you need to figure out how to mount it.
1337393
No, It comes with a 12 volt battery charger so it will trickle charge a 12 volt battery. The only factor is battery capacity. It will take a lot longer to charge a 900 amp hour battery than a 500. With that said, I can take a 900 from about 60% to full in about 12 hours on a good day.
1337394
no as long as its a 12v battery it will charge it, the bigger it is the longer it will take.
702772
I doubt it would have a high enough power output to charge a battery that size... I would recommend against it.
1703565
The one I bought would not fit so it was a waste of my money. It was suppossed to let me charge two batteries at once.
1610585
This is just a big battery. It will charge anything as long as it can be plugged in a usb port..
959250
Only if your bank of batteries is wired 48volts. It WILL NOT charge at any other voltage than 48volts.
1415939
My son bought this for me for Christmas and explained that the rate at which this huge backup battery charges depends upon the charger that you use. He said that I can use pretty much any of those things that plug into the wall. One for an i phone, bluetooth or android. They will just charge at different rates.
153063
It depends on your "charger" not on the battery. The charger that I use allows me to charge one or up four batteries at a time.
1131582
A 12 volt 7 amp battery works best ! If you try to use a larger size, it probably will not fit inside the control panel and not charge as fast or all the way.
1369976
Yes you can but not advised. It will go down to a trickle charge when batteries are fully charged. ok
842386
Yes, this battery can charge anything that uses a USB to mini USB connection.
1643871
Yes it can, as long as it is the same battery number you are replacing. This is a comparable battery. It should have a longer life between charges as well.
1157690
I use the 1 to 5 for charging hi-capacity batteries with no problems. It takes longer than charging just one, but that is to be expected. I'm not aware of any alternatives.
943267
It will not overcharge a large battery as in a car. It can be plugged in all the time as it has an diode to protect reverse flow of electricity. No it does not have a charge control, but the amperage is to low to overcharge a large battery.
687226
If you mean can you charge batteries other than the ones in the radio itself then the answer would be no. It doesn't have the capacity to produce that much power.
2090937
I can't answer that. The battery is charged prior to use. Perhaps you could contact manufacturer.
98075
I am not sure about that. I do remember that it took longer to charge than the instructions said. I charged it for a whole day before using it just to be sure. If it takes longer to charge than like 12 hours, I would call the manufacturer!
1633206
How big is that battery? From the manual: The battery length should not exceed 66mm. This would be measured from terminal side to the opposite side. The charger will charge the battery regardless of capacity, it just takes longer.