Just under five weeks. Then I charged it
and it's been connected for 8 days and
still reads 6.2 volts. After this charge
it measured 6.35 volts. I think the
initial charge (as it came from the
dealer in Helsinki) was not quite full
-- it measured 6.15 volts when I first
connected it to the camera. I take
dozens of pictures a day and even used
it to transfer files to the PC via the
USB cable. Now I use a card reader
because its more convenient and a lot
faster.
However. The battery ran down to 4.2
volts and the camera discharged the NiMH
batteries as well. So I think a week
should be subtracted from the total. But
so what? Its so easy to charge this
battery and it'll never let you down by
closing the shutter on a cleaning tool
-- as the mains can easily do. But I
suggest checking the voltage before you
start cleaning. I plan to charge it
every couple of weeks in the future.
Perhaps every second Sunday.
By the way I set the charger to 2 amps
in the morning intending to leave it
charging for 6 to 8 hours. But I forgot
and went to bed. At 4:00 I remembered,
leapt out of bed and turned the charger
off. The charging light had gone out and
the battery was not hot -- proving the
charger circuitry was working correctly.
Don
Glen wrote:
At 05:58 AM 11/4/2005, Don Williams wrote:
Okay. Today I connected the 6/12AH Lead Acid battery to the *ist D.
I've marked it on my calender and we'll see how many weeks it lasts
before needing a charge. I think it's full up now -- reading 6.15V.
It's not something you could put in a jacket pocket. Its a real hefty
block of plastic and lead that might be okay in a backpack.
So, how did this test work out? How much continuous run time did you get
with the battery?
I was tempted to try this myself at one point, and I still might get
around to it yet.
thanks,
Glen
--
Dr E D F Williams
_______________________________
http://personal.inet.fi/cool/don.williams
See feature: The Cement Company from Hell
Updated: Print Gallery -- 16 11 2005
