Vicky,
the little mysterious thing is a temperature swith, swithing off the
charging when the cells have reach a certain temperature.
This little device can have different functions in different systems:
1/ The entire system (cells, charger and temp switch) is so calculated, that
the batteries are fully charged at a certain temperature, and that the
switch then disconnects the charging.
2/ That the charging process is controlled by electronics, and that the temp
switch is only a "fuse", giving extra protection to prevent overcharging.
I don't know which system Sony used, probably 1/
This means that you cannot just put in new cells, and then use the original
Sony charger! Without the temperature switch you may blow the new cells, and
with it you may blow them anyway, as the switch may allow too high
temperature for your new cells.
Make a new battery pack, that's okay, but check carefully that the cells
don't get hot when you charge them. "Luke warm" is okay.
Klas.
At 12:46 2002-06-13 -0300, you wrote:
>Wil,
>
>The Eco-charger site has the following:
>
>"(Click here if you own a Sony D-10 DAT recorder) "
>
>Then, on the next page:
>
>"The SONY DCP-80 voltage regulator and special power cable are required to
>interface with an external battery. This unit replaces the internal battery
>and provides a regulated 8.5 volts DC from a 12 volt source.
>
>Now the bad news...
>
>To our amazement, Sony has discontinued this item. If you have one,
>consider yourself lucky! We'll keep you posted if more become available."
>
>They offer a DCP-80 power cable for $20. How does one get round the problem
>of the discontinued voltage regulator?
>
>Jeremy
>
>
>At 08:52 13/06/02 -0400, you wrote:
>>Vicki,
>>I too am a D10 user and have long ago exhausted my patients with the
>>recharable batteries that came with the unit. I have been using an
>>Ecocharge, sealed lead-acid, battery for many years now. It requires that
>>the battery be put into a fanny pack for ease of carrying but, it will
>>power the D10 for 6+ hours continuously. With the fast charger,
>>recharging requires slightly less time than the recording session was. I
>>have cycled these batteries hundreds of times and they are working
>>great. Other than the weight and need for a fanny pack I love them!
>>http://www.ecocharge.com/gamma.htm <http://www.ecocharge.com/gamma.htm>
>>
>>Wil Hershberger
>>Hedgesville, WV
>>
>>-----Original Message-----
>>From: Vicki Powys
>>Sent: Thursday, June 13, 2002 3:38 AM
>>To:
>>Subject: [Nature Recordists] Batteries: autopsy and restoration
>>
>>
>>
>>Hi Walt and All,
>>
>>Well I got busy with my (very fine) hacksaw and sliced open the plastic
>>casing of my defunct Sony D10 DAT battery (NP-22H 6 volt 1800 mAh
>>rechargeable ni-cad). There were three cells inside, two long and one
>>short, linked by 2 short wires to a mysterious silvery connector 2cm long
>>(which is marked IP305AF 80C ISUZU 0A3.)
>>
>>The two long cells look for all the world like "tuppeny bungers"
>>(firecrackers), but are yellow instead of red. The batteries are about 2.25
>>cm diameter, is that about the thickness of C cells?
>>
>>I now have to decide what I would use for the replacement cells, assuming
>>that I go with NIMH rechargables. Should I use 4 or 5 AA cells, or should I
>>go for C cells? What are the dimensions of C cells?
>>
>>Rechargeable cells often run at a lower voltage than disposable long-life
>>cells, would this make a difference in the number of cells I used?
>>
>>What is the voltage of a freshly charged rechargeable C cell?
>>
>>The original Sony battery pack, when new and freshly charged, put out up to
>>7 volts I think (the battery pack is marked 6 volt), and the tape stops
>>turning at 5.9 volts (5.5v under load).
>>
>>All ideas welcome!
>>
>>Vicki Powys
>>Australia
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>on 9/6/02 3:10 PM, Walter Knapp at wrote:
>>
>> > Vicki Powys wrote:
>> >
>> >> You are full of good ideas! Actually I DO still have two dead battery
>> pacs
>> >> but I may have to use a hacksaw to open the plastic casing, looks like
>> it's
>> >> glued together. Size-wise, each pac could hold up to six AA batteries.
>> >>
>> >> So the thought occurred to me, could I just open up the case, trash the
>> >> ni-cad contents, and re-mount five AA batteries of the NIMH sort?
>> (What does
>> >> NIMH stand for?) Of course I would need a NIMH AA battery charger,
>> but if I
>> >> had the case sorted out so I could easily mount or retrieve the AAs, I
>> could
>> >> even use non-rechargeables in an emergency.
>> >>
>> >> What do you think of that idea?
>> >
>> > I almost never toss a battery pac without dissecting it. Some can be
>> > fixed up with new cells so easily it's child's play. My portable drill,
>> > for instance. It comes apart with screws, and inside are a bunch of C
>> > cell size nicads with solder terminals and one thermister. And then
>> > there are others that will drive you nuts even getting apart...
>> >
>> > NIMH stands for Nickel Metal Hydride, a battery type. It has the
>> > advantage over nicads that it's almost immune to memory effects. And the
>> > amount of energy it will store, either on a weight or volume basis beats
>> > nicads by at least 40%.
>> >
>> > You were probably going to throw away those pacs, so might as well learn
>> > something. Note that cutting open with a hacksaw is kind of crude, the
>> > wide slot can be a problem putting it back together. If I get to sawing,
>> > which is rare, I normally will use a coping saw or jeweler's saw, which
>> > have much finer blades. In most cases, I'm more likely to just crack the
>> > case by prying with things like screwdrivers. The crack will go back
>> > together essentially with the same dimensions.
>> >
>> > It all depends on what you find inside, explore carefully.
>> >
>> > Depending on your resources, It may also be possible to design a
>> > improved pac that will fit in something. I've been eyeing the
>> > Portadisc's AA cell holder for just such a replacement job. One of mine
>> > already has a crack in it near the vulnerable center rivets. So, I've
>> > been thinking about a tubular design.
>> >
>> >> By the way, the Sony recharging unit (both mains and car) automatically
>> >> switches itself off when the battery is charged, so there's no risk
>> there of
>> >> overcharging.
>> >
>> > Most modern chargers do this. But with some there is still a way to
>> > overcharge. If the charger uses a timer that resets if it loses power
>> > (like in a momentary power outage) and it then does another fast charge
>> > by timer... Or if it resets if the battery loses contact...
>> >
>> > Walt
>> >
>> >
>>
>>
>>To unsubscribe from this group, send an email to:
>>
>>
>>
>>
>>Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service
>><http://docs.yahoo.com/info/terms/> .
>>
>>
>>
>>
>>[Non-text portions of this message have been removed]
>>
>>
>>
>>To unsubscribe from this group, send an email to:
>>
>>
>>
>>
>>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
>[Non-text portions of this message have been removed]
>
>
>
>To unsubscribe from this group, send an email to:
>
>
>
>
>Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
This outgoing e-mail is scanned for viruses with Norton 2002
Telinga Microphones, Botarbo,
S-748 96 Tobo, Sweden.
Phone & fax int + 295 310 01
email:
org. no SE440130067001
________________________________________________________________________
________________________________________________________________________
|