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External Battery for the 990?

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Hi CM,
I sent it by e-mail about an hour ago, has it arrived yet?

Michael Offe.
CM said:
Michael Offe said:
I have written out a message of technical and specs comparison on
SLA and NiMh for CM... but every time I try to post it, it fails.
But I can post this OK!

??????
Hey Phil, any ideas?

Michael Offe.
Click to expand...
Is the comparison in plain text or HTML? Maybe this forum will only
accept plain text.
Or e-mail it to me at
[email protected]

Thanks
Click to expand...
 
Ahh yes, between Taos & Springer. I have only driven through there once - lovely area. It is on my list to revisit.

Sounds like you will be away from electricity for a while, yes? I have heard tell of a solar panel that sits on top of a pack and would recharge batteries as you hike. You might need more than just 3 or 4 changes of batteries otherwise.

michael
 
Hi Fanandie
Re the connection to a lead acid battery.

All you need is a plug to fit the dc input to the camera (an elbow is the best shape rather than straight) and about a meter and a half of soft flexible cable with female spade terminals on the battery end (this extra length allows the battery to be on the ground when shooting from a tripod). The batteries have male spade terminals. It is best to solder the cable terminals, rather than crimp. Please don't forget to check the polarity. It is marked on the the rubber plug hole cover (centre pin +) and put some red tape or paint on the 'positive' spade terminal.
happy long hours of economic shooting. EMES
fanandie said:
emes said:
I use a 4 amp hour 6 volt sealed lead-acid battery, inside a pouch
on my belt.
These batteries are inexpensive- about $10 us, and they will last
for many years. For Very long trips I take 2.
One charge will give about 12 hours of continuous shooting with
monitor screen on all the time.
You can buy a small plug-in wall charger 6v 1amp for about $15 us,
charge time about 5 hours This is a no fuss totally workable
system. These are REAL batteries not the over priced junk usually
offered for cameras. Most of the external batterie packs are
nothing more than AAs strapped together. Regardless of their hi
tec, high priced formulas - they are just under powered boys trying
to do a mans job.
Click to expand...
totaly agree your point
but please tell us more about the connection to the camera and how
please
thanks
--
fanandie
Click to expand...
 
mlfrank said:
Ahh yes, between Taos & Springer. I have only driven through there
once - lovely area. It is on my list to revisit.

Sounds like you will be away from electricity for a while, yes? I
have heard tell of a solar panel that sits on top of a pack and
would recharge batteries as you hike. You might need more than
just 3 or 4 changes of batteries otherwise.

michael
Click to expand...
Had a previous thread with a mention about solar cell charging.
 
thanks for your instruction

I am looking for the elbow connector now and try to make a metal case for the battery to attach to the tripod socket underneath the camera
thanks again
:-)
fanandie
emes said:
fanandie said:
emes said:
I use a 4 amp hour 6 volt sealed lead-acid battery, inside a pouch
on my belt.
These batteries are inexpensive- about $10 us, and they will last
for many years. For Very long trips I take 2.
One charge will give about 12 hours of continuous shooting with
monitor screen on all the time.
You can buy a small plug-in wall charger 6v 1amp for about $15 us,
charge time about 5 hours This is a no fuss totally workable
system. These are REAL batteries not the over priced junk usually
offered for cameras. Most of the external batterie packs are
nothing more than AAs strapped together. Regardless of their hi
tec, high priced formulas - they are just under powered boys trying
to do a mans job.
Click to expand...
totaly agree your point
but please tell us more about the connection to the camera and how
please
thanks
--
fanandie
Click to expand...
Click to expand...
--
fanandie
 
You will have much more flexibility in your shooting system if you keep the battery as a mobile item in a pouch or waist belt bag
EMES
fanandie said:
emes said:
fanandie said:
emes said:
I use a 4 amp hour 6 volt sealed lead-acid battery, inside a pouch
on my belt.
These batteries are inexpensive- about $10 us, and they will last
for many years. For Very long trips I take 2.
One charge will give about 12 hours of continuous shooting with
monitor screen on all the time.
You can buy a small plug-in wall charger 6v 1amp for about $15 us,
charge time about 5 hours This is a no fuss totally workable
system. These are REAL batteries not the over priced junk usually
offered for cameras. Most of the external batterie packs are
nothing more than AAs strapped together. Regardless of their hi
tec, high priced formulas - they are just under powered boys trying
to do a mans job.
Click to expand...
totaly agree your point
but please tell us more about the connection to the camera and how
please
thanks
--
fanandie
Click to expand...
Click to expand...
--
fanandie
Click to expand...
 
thanks emme

what I am now going to do is had an extra Nimh battery attach to the bottom of the camera bracket

a Metz 45 will be mount to the bracket and run a Quantum turbo for the flash

I found 2 cords connected to your body would be not feeling free when shooting

please give me you email address and I would like to send you the finished product image to you

thanks again
 
emes said:
CM said:
I've heard a mention about a rechargeable 6 volt battery that can
be worn on the belt or in a vest pocket and plugged into a digital
camera for a ton of power for the trail. Since I'll be in the New
Mexico mountains for a 12 day hiking trek this would be most
advantageous for my 990. I'm looking at shooting around 1,000 pics
in the fine mode.
Since I'm using a 24mm wide angel, I'll need to use the monitor,
conservatively, most of the time.
Thanks for any links or news.
CM
Click to expand...
Click to expand...
Last week I picked up a 6v 4.5amp hour sealed lead acid battery for $9.95 U.S. along with a $14.95 charger. After a couple three stops for a correctly sized plug in adaptor for my 990 and wire rigging inbetween, it appears I've met with considerable success with this set up. Been running test shots on and off at lunch breaks, nights, and mornings the past three days to see how long the battery will last, and have just suspended same.

Not that it matters but the little 990 battery charge LCD idiot light still reads good charge on the single full charge the lead battery received. The run-up of test shots included a few full length Quick Times, some flash shots and plenty of zoom outs and ins per every 100 shots or so. I quit the battery run-down test at over 1,400 shots. Most stills were in the Fine XGA with a few Fine and some TIFFs.

These brick battery babies DO work and have a hell of a lot of juice for any long haul vacations or heavy shooting weekends. I got a hair-shutter finger and can punch thru several hundred shots on a weekend outing easy.

I'm now trying out a more lighter 6v 3.5 amphour battery since the heavier 4.5 is too much power for my 12 day June mountain trek. Will stilll pack along a few NIMH sets for easy off trail photo opts.

Thanks for the lead turn on emes.
CM
 
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