Re: Seeking experienced advice:Whiskers wrote:
> On 2008-03-13, Blinky the Shark <no.spam@box.invalid> wrote:
>> C0mdrData wrote:
>>
>>>> Thanks, I shall check it out.
>>>>
>>>> I have a question about the batteries: If I go to a sellers web site
>>>> on the web to view a camera, they have accessories such as the NI-MH
>>>> batteries. Many sell a charger and batteries for close to $90 as an
>>>> accessory. If I search for the batteries and charger by itself, they
>>>> can be had for a lot less.
>>>> * thomas-distributing . com /sony-lcd-rechargeable-battery-charger.htm
>>>>
>>>> Is there something wrong with the above charger and battery combo or
>>>> is this simply a case of the seller of the camera trying to get rich??
>>>
>>> The Sony combo is a fine system. NIMH batteries come in various
>>> capacities. Look for 2500mah or more, if you want maximum capacity.
>>> Sanyo eneloop batteries offer lower capacity, but have a slower
>>> self-discharge rate. This means they won't lose charge as quickly as
>>> others when not used.
>>>
>>> Anybody trying to sell a set of AA rechargeables and charger for $90 is
>>> definitely overcharging (no pun intended), and should be avoided at all
>>> costs.
>>
>> I used to use rechargeable AA batts with my Fuji S7000. I had
>> absolutely horrible luck with them. Various brands, no good luck. I
>> could charge them until the charger indicated a complete charge *and
>> they checked out at 1.6x volts with my voltmeter*, put them in the
>> camera immediately, and get a batt warning light. Sometimes I could get
>> two or three shots; sometimes it would just shut itself down. I wanted
>> to recharge, but I just couldn't.
>
> I'd query the accuracy of your voltmeter. NiCd and NiMH cells won't
> deliver much more than 1.2v - but they do stay at that level until almost
> completely discharged. Rechargeable alkalines have the wrong
> characteristics for heavy-drain appliances and will discharge very
> rapidly.
For the record, my rechargeables were all NiMH.
I got the same readings with two different voltmeters.
> I don't know the Fuji S7000 but in general terms if an appliance has a
> 'battery state' indicator that is based on voltage readings and is
> calibrated to work with disposable batteries (which start out at 1.5v or
> slightly more and decline to 1v or less) then a NiMH or NiCd might be
> below the voltage that triggers the 'low battery' warning. I've also
> encountered a portable radio that refuses to run at all on NiMH or NiCd
> cells because it uses six of them in series and actually needs more than
> 8v - but 6 1.2v cells only adds up to 7.2v. My 2xAA Mini Maglite torch
> works with some NiMH cells and not with others; I think some makes are
> shaped so that they don't actually make electrical contact inside the
> torch - the casings on rechargeable cells tend to be bulkier than on
> disposables, and the positive 'button' ends up less prominent on some.
Re bulky casings: Side note: Those rechargeables - brand aside -
didn't fit in the battery caddies for my Vivitar 283 and 285 strobes. I
wish I'd slapped my dial calipers on 'em. I *could* get them into the
caddy, actually, but then the caddy woudn't fit into its bay in the strobe
body. The caddies were obviously engineered to be a very close fit; I
wouldn't have had that problem using them in a typical clock or Walkman or
something like that. And not only were the batteries from various
manufactureres, but I tried aftermarket caddies from two sources *and* the
original Vivitar caddies, while scratching my head and mumbling
obscenities.
>> I reverted to alkalines, and I *never* have problems like that with
>> those. Now, if I hadn't been checking those rechargeables with that
>> voltmeter, I'd just say that I got a bum charger, but I checked scores
>> of recharged batts only to have them then not work in that camera. Can
>> anyone shed any light on this?
>
> Presumably you were using the right sort of charger for the batteries
> ...
Good presumption.
>> I like the idea of conventional batteries, available at a reasonable
>> price everywhere. A couple months ago I bought a compact (Fuji A820),
>> and using AA's was a hard rule when I was shopping.
>
> Using AA sized batteries is certainly a useful feature, especially if
> you carry lots of gadgets that all use the same size. But I'd be
> surprised if alkaline cells (rechargeable or disposable) would work out
> more convenient or economical than NiMH cells.
They sure do when the others don't work. Well, in terms of convenience;
as for economy, though, I suppose one could argue that since I couldn't
install the rechargeables in the strobes and they wouldn't work in the
camera, figuring their cost versus their *shelf life* would make them the
most economical -- they'd last for years. :)
> This site might be interesting
> < * w w w .greenbatteries . com /aa-battery-faqs.html>.
Will check. Thanks!
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