On 27/05/2011 12:04 PM, email@example.com wrote:
Because digital cameras are high drain devices, and ordinary lead-acid
batteries can't deliver the power required, where alkaline can. However,
a much better solution than alkaline is the new Sanyo Eneloop NiMH
batteries, which are rechargable and last a lot longer.
(the Aussie one)
With my first digicam the manual said it could not use rechageable
batteries. After a year of going through Duracells like there was no
tomorrow I upgraded to a (4.1 megapixel!) camera that came with
rechargeables, so I thought "What the hell, let's try them in the old
thing" and it loved them....
I hope you mean zinc-carbon, I'd hate to see a digital camera with
lead-acid car batteries in it, or even the smaller sealed cells you find
in little UPS units.
Even alkaline cells are a poor choice for digital cameras: the short,
high current drain requirements (principally for writing data to the
memory card quickly) combined with the high internal resistance of
zinc-carbon and alkaline batteries mean that they become unusable after
relatively few shots. Leaving them to cool down will get a bit more use
out of them, and once they've become useless for the camera they will
still power your TV remote for some time.
Rechargable Ni-Cd, NiMH or lithium cells have lower internal resistance
and will deliver the required current for longer.
Eneloop isn't new, but it is a good answer to the biggest problem with
NiMH, their high self-discharge, meaning that they lose most of their
charge after a few weeks. Unless you're a pro using your camera every
day, you end up charging the batteries every time you need them, which
uses up their lifetime (counted in charge cycles) much more quickly.
Eneloop and the other low-self-discharge battery types (Uniross Hybrio,
Maplin Hybrid, Sony CycleEnergy etc) retain 90% of their charge for more
than a year, making them a much better buy. I buy nothing else now, as
my old-tech NiMH's die off.
i always drain rechrge batteries completely before i recharge so that they
don't get that "memory" partial charge condition. you can even cure those
with a capacitor flasher that shorts that false "memory" out.
On 27/05/2011 19:27, firstname.lastname@example.org wrote:
NiMH's don't suffer from a memory effect as badly as NiCd's do, and they
last a lot longer (more charge/discharge cycles) if not deep-discharged.
Lots of useful info at
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