Can this battery be recharged by a 12 volt solar panelwith a controller> Caroline
1639193
Yes, I use two in parallel with a twelve volt hundred watt solar panel for power in my camper. I really like them and will be ordering more.
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.
1123838
Yes, the charge controller will automatically bind to the single 12 volt battery, with appropriate charge from a 24 volt panel.
765121
As the electrical engineer answered, his keeps three batteries charged. he also mentioned he doesn't use a controller. Since this panel is very efficient it might be best not to leave it charging a single battery long term without a controller. If you weigh the cost of controller($15?) against battery, what would be your choice? This solar panel seems like it will last a long time so you might consider the controller. Most are good up to 95 watts if you decide to add to your panels.
304630
I run mine on a 12 volt battery for 20 hours with no issues, I would think the right solar panel would work.
1239097
Yes. You connect the battery with the charge controller. This is only for 12Volt battery. If you have 24volts, you will need to replace the charge controller with a MPPT one.
1258373
this controller doesn't care if it is 12 or 24 volts,, not very many watts though,, it will take a while to much charge in that battery
2242776
You won't want to connect the panel directly to a battery, as it could damage or overcharge it. The panel itself only provides a voltage, you need a charge controller between the panel and the battery. The one I used (http://www.amazon.com/gp/product/B001HWQZNQ/ref=wms_ohs_product?ie=UTF8&psc=1) is not currently available, but should give you an idea of what to look for. You want a controller that can handle at least 30 watts and 17.5 volts input for charging 12v batteries.
1220388
Yes this is great for 12v but should us the SS-MPPT-15 charge controller with it. Thanks, ML SOLAR
444846
Yes I believe so even though I don't have a manual handy. This charge controller is for 12 volt panels which usually run around 18 volts.
1796517
Yes you will need a controller a panel this big would quickly destroy the battery. When it is dark your battery will not discharge any faster than it would naturally.
22135
Yes. Charge controllers, like this one, are specially made to go through different charging cycles to extend battery life span and protect batteries from overcharging.Thank you,AW
1515716
The charge controller is for regulating the battery charging. Step down the higher solar panel voltages to 12volts(around). It can also prevent the battery from back charging the solar panels in the night.
981796
Hello Jennifer, Yes, the Guardian 12V Charge Controller will charge any 12V battery. The Guardian can handle a maximum of 90 Watts input. You can use 3 - 4 Boulder 30 panels with the Guardian to charge your 12v battery. Thank you for your interest - I hope we can help you - Denis, PrepareDirect
990638
I believe in a crude way it will work because the battery should clamp automatically the voltage down. However, this can only be a temporary solution. The charge controller is indeed the way to go. Try midnight solar
1514527
As long as you wire your 3 12volt batteries in parallel, this panel will work. There are built in bypass diodes. But to avoid back flow charging from the battery, you will need either a charge controller and 5Amp is sufficient for the rated current of charge controller.
974745
That will work just fine. Just make sure your solar controller is rated for at least 10 amps and preferably 15 amps just to be safe.