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Will a battery power a short LED light strip drawing 3 amps? Answered

I am building a lighted mirror attached to a pole for conducting searches in tight places.  I have an 8.5" convex mirror which results in just over 25" of circumfrence.  I would like to use the LED light strip linked below to provide light to the area being searched and would like for it to be run off a battery source to make it easily manueverable.  I plan on using 2 ft of the LED rope.  The product specs indicate it should draw 3.0 amps.  Would a AA/series of AA batteries (or another small battery) power this light strip if wired into a switch and a battery pack?





6 years ago

I know it is your ART

But are you using an inspection light in some deserted barn
where No Electricity flows,  soon you will tire of lugging a
double mass of batteries that have to be replaced
when your most involved and you don't expect in order to continue.

Better select a simpler lighting strategy like unadorned LEDs at
a reasonable voltage that is their chief contribution and advantage.

Use a forever lightweight super cap 3 min rechargeable
for a ten hour inspection light at full intensity...
Or use a reliable wall wart supply...
Before embarking on another sticky  burning man  iluminance scheme
is my answer for you.



6 years ago

I'd be tempted to make a pole with a tube, and put 16 AAs in the handle....


6 years ago

probably, by the cost of the batteries and the báttery holder will be similar to the LED
strip's transformer. If you count 3 bucks per 4 batteries it's 12 bucks. plus, let's say, 2 bucks each battery holder that's 14bucks. A transformer costs 25 bucks and it's speciflicly made to the LED strip, so it won't burn and the batteries will die after a while, beiing necessary to spend more 12 bucks, costing a lot more after a while than a transformer, so I recommend the transformer.


6 years ago

According to the specs, the power consumption is 1.5 watts per foot, and the input voltage required is 24 volts. For 2 feet, you would have 3 watts, and the current at 24 volts would then be about 0.125 Amp. That amount of current could easily be sourced by AA batteries. In order to get the 24 volts, however, you would need to put 16 AA cells in series. I know that there are battery holders that hold up to 8 AA cells each, so you could get two of those, and wire them in series, full of AA cells, to get the needed voltage.