I am baffled by a problem I have had with battery-operated Christmas lights I bought about three years ago in the UK.
The two sets of lights are identical. There are about a dozen lights (presumably LEDs) in each set.
When I first bought them they worked fine with two alkaline AA-sized batteries for each set. But their performance was poor with rechargeable batteries.
I have just tried the lights again. About half the lights in each set glow normally. The next few are dimmer than normal and the last few don't light up at all.
To check them out I tried several lots of alkaline batteries from different brands. With all of them only some of the lights came on.
A friend who is good with electrical things said the problem is that in recent years alkaline batteries have become weaker, because the manufacturers have had to cut out one or more of the chemicals they formerly used (such as lead).
Does anyone know if this is correct? If so, how can I make the lights work normally again???
2006-12-07
05:47:50
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3 answers
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asked by
Jenny
1
in
Science & Mathematics
➔ Physics