How would I go about running nine of these with AAA battery? What kind of a resistor do I need? How many can I connect? How long will it last? TNX
1991448
No resistor needed if you operate between 2.5V and 4.0V. I use CR2032 batteries (get cheap ones from Amazon). I ran 5 of these for over 10 hours on one battery. Remember--these are not just LEDs. They are LEDs with a switching controller. The normal LED rules don't apply.
1991449
These things need at least 2.5V to function properly. I'd recommend using 2 AAA's or a CR2032 3V.
671882
no resistors was needed for what I used them for, I was able to run 8 of them wired together on a 12volt battery for 48hours straight in my ice fishing shanty.
1985857
Yes, Ive actually done this myself. You can either pick up an 8 AAA or AA battery holder and hook the lights directly up to that (might want to put the battery case in a plastic bag so they dont get wet, mine did) or to save space you can hook up 2 9V batteries to a voltage regulator circuit which you can make for cheap with parts from radioshack. I did the thing with 2 9V and it was small enough to fit in one of those tiny project boxes which i then bolted directly to the bottom of my board.
1315475
Simple.You need a two channel transmitter. Futaba is a popular brand. You will need a battery . 7.2 volt any where around 3500mah will give a good run time. Duratrax makes a good quality battery. Then last by not least. A charger.The simpler the better especially new to the hobby. You can find all of these items easily on Amazon or ebay. Towerhobbies.com s a gorgeous resource as well. If you need help just let me know. I am glad to help out now R/C people. It's a fun hobby.-Matt
471353
Ten (10) great little batteries, I Immediately tested mine with a multi-meter and all were in super shape, all ten had excellent voltage. I have already ordered more of another type and they were in super condition too and all tested great. The wrapper may be diffent from the package displayed but the battery is the important part. Good luck and have a great new year.
742522
MattThese will work on no more than 4.5 volts.........real bright..........sorry i'm late....the other i bought from another company which i was testing were 12 volt they work nice.....but i bought only 6 for a test...........You would need a resistor to use those "the blue" to lower voltage to 4.5...........Rick
1293259
A lot more information is going to be needed. What battery voltage are you going to be using, how far of a run, do the 100 watt panels have mc4 ends? The questions could go on for days. This has standard screw type terminals, so all you need to do is strip the copper, stick it in its hole, and tighten the screw. Hooking up panels can be a very different task if there are not mc4 ends. Then you will need a water/weatherproof junction box to combine the panel terminations, and then run a single line from where the panels. Your question is far too open ended to even try and answer. Be more specific A lot more information is going to be needed. What battery voltage are you going to be using, how far of a run, do the 100 watt panels have mc4 ends? The questions could go on for days. This has standard screw type terminals, so all you need to do is strip the copper, stick it in its hole, and tighten the screw. Hooking up panels can be a very different task if there are not mc4 ends. Then you will need a water/weatherproof junction box to combine the panel terminations, and then run a single line from where the panels. Your question is far too open ended to even try and answer. Be more... » Read More A lot more information is going to be needed. What battery voltage are you going to be using, how far of a run, do the 100 watt panels have mc4 ends? The questions could go on for days. This has standard screw type terminals, so all you need to do is strip the copper, stick it in its hole, and tighten the screw. Hooking up panels can be a very different task if there are not mc4 ends. Then you will need a water/weatherproof junction box to combine the panel terminations, and then run a single line from where the panels. Your question is far too open ended to even try and answer. Be more specific « Show Less
546882
There's a power in (-,+) which is visible in the picture on the lower right hand side (It's the little blue tower with only two things on it). I used 4 AA batteries. You should be able to use more then that but it's up to you I don't know the recommended voltages for this off hand.
679025
My unit uses one AAA battery, which lasts weeks. A disposable battery works perfectly, but you might try one that recharges in a separate unit.
792438
These units were designed for use on a single battery and not "6" connected in a series or parallel. You can check with the manufacture about this issue but my guess is it will not work with 6 batteries.
940706
I'm planning to use a 9v battery to light up 2 or 3 of these LEDs; I see F. Solano has used a 200ohm resistor to accomplish similar, but Kapowzer claims a 1k resistor? Any advise re: which to use would be appreciated - thank you.
534712
It uses 3 AAA batteries not 9V. AAA's are 1.5v per battery. It uses photo-electric technology.
353901
How did you try to measure 24 volts? If you used 2 twelve volt batteries in series make sure they were connected one + lead to the other - lead. Or try to measure 3 nine volt batteries snapped together. You should get 27 volts. I think there is a calibration pot on the back of the meter. It is very small and you will need a jewelers screwdriver to adjust it. Make sure the red lead goes to the + termingal of the battery. Try again and let me know. You could have a bad batch of meters. Mine worked very will on my power supply that goes up to 27 volts. One last thing...are the 24 volt batteries you are measuring good batteries? The meter might be telling you that they are not. Hope this was useful. Also be aware that all meters have a percentage of error. Some are + - .1% + - .01%. No matter how expensive the meter it will have error tho very small. The smaller the error, the larger the price. These cheap but beautiful meters are good enough for battery monitoring. I wouldnt use them to build a computer power supply.
1589198
Howdy Becky, These are a lot larger batteries that a normal "AA" battery. Normal "AA" are 1.5 volts, These are 3.7 volts. But they can be found on Amazon by typing in 18650 Batteries. Don't buy the cheapest you see Nitecore has a set of two with a charger for about $15 Prime. I have a set of these myself and they last about 8 hours while fishing. Once a month I let my light run completely down. Then I charge it completely. This helps the battery from developing what is call a discharge "memory." If you charge everytime it goes down to 1/2 time, the batteries will start to think 1/2 discharge is fully discharged. Hope this helps you out. Sarge Howdy Becky, These are a lot larger batteries that a normal "AA" battery. Normal "AA" are 1.5 volts, These are 3.7 volts. But they can be found on Amazon by typing in 18650 Batteries. Don't buy the cheapest you see Nitecore has a set of two with a charger for about $15 Prime. I have a set of these myself and they last about 8 hours while fishing. Once a month I let my light run completely down. Then I charge it completely. This helps the battery from developing what is call a discharge "memory." If you charge everytime it goes down to 1/2 time, the batteries... » Read More Howdy Becky, These are a lot larger batteries that a normal "AA" battery. Normal "AA" are 1.5 volts, These are 3.7 volts. But they can be found on Amazon by typing in 18650 Batteries. Don't buy the cheapest you see Nitecore has a set of two with a charger for about $15 Prime. I have a set of these myself and they last about 8 hours while fishing. Once a month I let my light run completely down. Then I charge it completely. This helps the battery from developing what is call a discharge "memory." If you charge everytime it goes down to 1/2 time, the batteries will start to think 1/2 discharge is fully discharged. Hope this helps you out. Sarge « Show Less
1224563
i used 12 gauge from the solar panels to the controller and from the controller to the batteries i used no 6 awg i already had here The no 6 is probably overkill i wouldnt go any less than 8 from the controller to the batteries what is your battery bank at least 24v i hope
1935315
I have only chagred 1900mAh NiMH AA and AAA batteries, 8, 4 or 2 at a time. Can't say for 3500mAh though, should work as others have said once it's a NIMH batt.
1246366
they run of of 9v I use the basic radio shack power adapter with a universal socket and bought another socket to connect to the lights and everything is running fine with it. They ran fine with 20pc as well as with 8 so I could not imagine 4 not working.