Looking to simply to charge a portable battery pack. The pack already has a % charged level. Do I really then need a charge controller?
395358
A charge controller protects the batteries from over charge.The % charged is probably only a meter.Also, a controller should convert PVC voltage to match voltage rating of batteries (16-19v to 12v)
395359
I'm not sure, but a controller only costs 10 bucks, and can save you from burning out your battery and your solar panel if something does go wrong
2236907
I use this panel to charge a 4ah lithium iron phosphate battery w/ a charge controller to regulate voltage(14.1). I wanted an unbreakable portable panel for charging electronic devices. You could link two of these in parallel to 2 group 24 batteries but it would only be a trickle charge(<20watts). I would suggest a cheap charge controller even though it's not necessary to extend your battery life. These are nice panels but for two 85ah batteries you might aim for 50-75watts.
1686800
This is just a power cord, or source of electricity. This will charge many of the different battery packs, which you have to purchase separately.
25900
use an power adapter that has 5v-1000ma to charge your battery pack, plug it into the micro usb port(most of the cell phone charger are capable)
664079
A PC can charge a rechargeable battery pack, but this cable DOES NOT transmit data. To actually use the controller a PC wireless Xbox 360 USB receiver is required.
285872
If the panel is small enough in relation to the battery, it is actually better without a charge controller. The controller cuts down the energy flow to a level that won't overload the batteries, but a small panel is too weak to actually be a threat, and it is more likely that the energy is being wasted by cutting it down at all. With more panels, overloading the battery becomes an issue. Then, you need to shorten and fatten all the wire paths, and buy a good charge controller. On a top end charge controller, you can even manually up the voltage output to make up somewhat for what you lose through the wires.
165915
You need a charge controller, otherwise you will fry your batteries...This also a 24 volt panel, so you will need solar charge controller tha can handle up to 45 volts.
1902503
This panel does not appear to have a charge controller built-in. If it is connected directly to the battery, it will deliver around 0.5A to the battery whenever the sun is out. This could shorten the service life of the battery. It may be better to add a charge controller, which will float the battery at a constant Voltage instead of charging it with a constant current. There is a possibility that the gate opener has some kind of built-in overcharge protection, in which case a controller would not be needed.
56629
I see no reason the panal wouldnt charge the powerpack 600. As far as safe unmonitored charging, your deffinatly going to need a descent charge controller. The one provided with the instapark 30w is absolutly worthless. Dont trust it for a second. I got a 30amp PWM controller for my setup. Its managing three panels. two 30w and one 50w .into four deepcycle batteries. All in all the panel is well built and works flawlessly. Now I'm sure youll haveto connect the panel and controller to your powerpack with a modified connector specific to the pack itself. Hope this helps.
345245
Not exactly it does not have a charge controller. You will need one. It had a cigaret female plug. You can adapt to that. I use to charge batteries for my ham radio equipment. You might look at the deltran solar charger. They go buy battery tender.
1450266
Without a charge controller battery life will be compromised, due to heat issues accidents may happen as well. MPPT type charge controller is most appropriate for any battery voltages ie; 12, 24 ..... Since this panel is 24v a PWM charge controller will work fine for 24v battery banks. Charge controller is highly recommended.
1316172
Buy a Solar charge controller 10 watts to the battery after you hook it up via the instructions that come with it. Cost for controller was eleven bucks. No chance of overcharging your battery. The thing ,35 watt panel, charges my battery in about 6hrs.
933679
you will need a 10 amp charge controller for one of these or a 20 amp charge controller for two.The charge controller will have adjustable settings "you set"I suggest a renogy 30 amp pwm controller for three reasons it will give you room to add more panels its cheap under $35 and its all you would need to accomplish battery charging in 12 or 24 volt mode,I hope this helps
2122930
What a great idea! You sure can hook this panel up to a car or marine battery for trickle charging. For an emergency charge you could get away with not using a controller. Just be sure to unhook the panel before the battery gets to 14.5 volts which will take a very long time with a 13.5 watt panel. This panel would be better served for maintaining a battery charge and you would need a controller for that. I did a quick experiment to verify and posted some pictures in the 'Product Images from Customers' section. All the items I used can be found on Amazon: Sunforce 7amp Charge Controller (I wasn't too impressed with this controller, for regular use the Sunforce 60031 10amp Digital Charge Controller is a nicer model): http://www.amazon.com/Sunforce-7-Amp-Charge-Controller/dp/B0006JO0XI/ref=sr_1_1?ie=UTF8&qid=1387406266&sr=8-1&keywords=sunforce+7amp+controller http://www.amazon.com/Sunforce-60031-Digital-Charge-Controller/dp/B001DZONCW/ref=sr_1_fkmr0_2?s=automotive&ie=UTF8&qid=1387413721&sr=1-2-fkmr0&keywords=Sunforce+10amp+ditital+controller Gino 2.1x5.5mm Male Jack DC Power Adapter: http://www.amazon.com/gp/product/B0058RLD9C/ref=oh_details_o03_s01_i00?ie=UTF8&psc=1 2.1mm DC Power Cord Coupler Female to Female: http://www.amazon.com/gp/product/B002IULV8U/ref=oh_details_o09_s00_i01?ie=UTF8&psc=1
1027176
According to the directions you do not need a charge controller for a 30w panel on this unit. Larger panels would require a charge controller.
641033
Yes, use the charge controller and configure according to the directions that come with it. I got the 30 amp one.
99420
No. You do not need a charge controller until you exceed 15watts of power. The discharge protection is a simple diode that prevents the battery from draining back out to the pane at night. But because of that diode, DO NOT START THE CAR WITH THE PANEL STILL CONNECTED TO THE BATTERY! You will destroy the diode and weaken the panel's charging ability.