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Battery life in hours in LED light strings
DuraCell ProCell (4 for $5) Eunicell (3 for $2.52) Dollar General Alkaline Dollar General Carbon Panasonic (4 for $1)
ICBORed 100* 130*
ICBOGreen 60* 130*
ICBOBlue 60 130
ICBOMulti 50
ICBORainMulti 56 63
ICBOCool 60*
ICBOWmWht 60
LBOM5CW-W 60*
BOFlxWW 60*
BOFlxMu 20*
BOWABlue 100 100*
LGBOWreathWW
26" LED wreath (uses 2 D batteries)		 720 hours (24/7 for over one month!)
Spiral Light, Red (uses 2, AAA batteries) 57
Spiral Light, Green (uses 2, AAA batteries) 40*
Spiral Light, Blue (uses 2, AAA batteries) 40*
*=estimated

If a box is blank, we did not test with that brand of battery, and don't have enough data to make an estimate.

Do not use rechargeables (rechargeable AA batteries will not fit exactly right and may cause erratic operation).

NOTES:

Example of how testing was done: What we did was put three new ProCell batteries in this set and watched the set 'til it got noticeably dim. Our test started at 12:30 pm on 8-17-7 and some of the lights got dim at about 7:00 pm on 8-19-7. Thus, the usable life of the ProCell batteries in this particular set of lights was about 54 hours.

It is important to consider that we have not run a scientficically-proper testing procedure using a control sample and several trials of the same tests. We ran the lights once, and recorded the results. In some cases, we just made educated guesses. For instance, we expect that the green set will run the same length of time as the blue set, if all else is equal. This is because blue and green are very similar colors and use about the same amount of energy. A white set, however, may not use the same amount of energy, so it is tested separately.
Your results will vary because of a number of factors: 1. battery temperature 2. ambient temperature 3. age of batteries 4. brand of batteries 5. natural manufacturing variations

The test results are listed by the continuous hours they ran various sets of lights, until they became noticably dim. That is, when I noticed the lights were dimmer, that's when I stopped the test. I did not run the lights until they would not illuminate any longer. To do this would have resulted in deceptively-long runtime.

I did not compare brightness to another set with new batteries. I wanted to test them according to what a passerby might think of the lights. When I felt that a passerby would say, "gee, those lights look dim" I called that point the end of the useful life of the batteries.

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