>I have a question about battery types in dive lights. I looked through
>the FAQ and didn't find my question answered (doesn't mean it's not in
>there 8-). I was wondering if it was OK to use nicads or the rechargable
>alkaline batteries in dive lights. What are the pitfalls of using
Well, nicads are rechargeable (many times) and lightweight.
Disadvantages are that they don't hold nearly as much juice as
alkalines (or maybe even as much as zinc-carbon plain batteries),
and they put out lower voltage (1.2V per cell instead of 1.5).
So your light won't be quite as bright, and the batteries won't
last long at all per charge.
Even their light weight may be a problem -- other than Coz wall
dives, I'd rather a dropped light sank than floated up to the
The new "Renewal" rechargeable alkies from Ray-o-Vac seem pretyy
good -- all the weight and power of regular alkies, but
renewable. I've heard that each charge cycle gives less and less
charge, but haven't tested my own yet.
>It seems like a rechargable battery would be financially better in the
Funny, I hate buying batteries and throwing them away, but for a
dive, when you consider all the time and energy and money you put
into each dive (must be at least $40 per tankfull when you
consider everything), buying 4 or 6 brand new batteries before
each dive doesn't seem so expensive anymore. You probably tip the
boat crew more than the cells would cost.
And consider that batteries that survive one dive can be swapped
out and used in your radio, etc where you don't mind when they run
down. You want fresh cells on every dive.
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