Question about Sony GV-D900 Mini DV VCR

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Internal battery how do I replace the internal vanadium battery? Thanks

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Below picture is exploded view how to change back-up Lithium battery in Sony GV-D900 player.
Hope it will help you out.

internal battery - 975d1f0.jpg

Posted on Sep 12, 2008


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Posted on Jan 02, 2017


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Te-8500f change battery

Very special Vanadium internal battery. One of the most expensive too. Have it done only by a dealer unless you have an electronics friend. The power MUST be on while changing it or all program will be lost

Sep 27, 2017 | Retail Supplies

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I have a DCR PC 100e which I have not used fir some 10 years. I suddenly want ti reusebit to record a soccer match and would like to activate the Digital Zoom function. But when I push the Menu dial disk...

I don't have a DCR PC 100e, but be aware the main battery in the camera also can be dead. If so, the voltage needed to charge the internal battery, can't be reached. Normally the main battery, should be capable of recharging the Vanadium-lithium battery, without the charger connected.
Just sit out the 24 hours, but be prepared to replace perhaps both batteries. The main and the internal. Not sure you can replace the internal battery yourself.

Sep 05, 2014 | Cameras

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It uses a special Vanadium Pentoxide Lithium battery. It is available from Casio register dealers. If you are changing it yourself, make sure you have the power TURNED ON in reg mode while changing it. It has to have power to keep the memory while the battery is being changed or you lose the program.
For those who asked, there is a Casio TE-8000f and TE-8500f programming manual here:

Apr 02, 2014 | Casio Parts Cash Register PC Desktop

1 Answer

How do i change internal battery on sony DSR250

Hi babu50,

Well the battery in your camera is a (vanadium-lithium rechargable battery, and from what I am aware is and should be recharge only.

I understand from a friend who had one of your camera type that it is not replacable because it is built-in, even Technician people with all the gear wont normaly replace that.

If your camera is not keeping it's setting eg. time, date etc (which that battery helps keep) then the chances are it has either come lose of it's fixings, or packed up working, though the first option is more like to have happened.

I think you should charge your camera in mains for a min of 24 hrs, even if it tells you it's full.
I had to do that with my camera 8 years ago.

Hope this helps.

Thank you for using Fixya.

Sep 14, 2011 | Sony Dvcam DSR-250 Camcorder

1 Answer

2SO2 + O2 -------> V2O5 2SO3 which of the chemical symbols is the catalyst?

(s) + O2(g) -----> SO2(g)
The gases are mixed with more air then cleaned by electrostatic precipitation to remove any particulate matter
The mixture of sulfur dioxide and air is heated to 450oC and subjected to a pressure of 101.3 - 202.6 kPa (1 -2 atmospheres) in the presence of a vanadium catalyst (vanadium (V) oxide) to produce sulfur trioxide, SO3(g), with a yield of 98%.
2SO2(g) + O2(g) -----> 2SO3(g)

Read more:

Aug 16, 2011 | Computers & Internet

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My internal backup battery is dead, can anyone tell me where to find the specs to replace the internal battery? and what type of internal battery is it? Thanks

If it's been a few months since you have used the camera it's normal to be dead.
Charge the camera and use it and the clock battery should come to life.

The camera will work fine even if the battery does not work, however, you will not be able to record time and date.


Feb 16, 2011 | Sony DCR-PC350E Mini DV Digital Camcorder

1 Answer

Hi. I have a Casio CE-3700 that is only used for a few weeks of the year. Once I month I try to turn on the machine and leave it powered up for around a day. I am now wanting to actually use the machine....

It sounds like the machine has lost some programming. What you were doing once per month is what I recommend if not used regularly, but the battery has probably now got to the stage where it is too old to even hold charge for a month. It is probably best to get the battery (internal vanadium type) replaced as it may have started leaking if it is too old. The dealer who replaces it can reset your decimal places at the same time. If you just want to get it running as is and take a chance, then do the flag clear (to get the FFFFFFFFFF on display then SUBTOTAL) on one of your WORKING machines, and tell me the big number that it prints out (this will not lose any data on your working machines, it just reads the settings)

Jul 26, 2010 | Casio Parts Cash Register PC Desktop

1 Answer

Laptop clock zeros when laptop is switched off

The most likely problem is an internal battery. This is a fairly small battery, similar to a watch battery. It should be accessible from one of the panels that unscrew on the bottom of your laptop.

Jan 08, 2009 | Computers & Internet

1 Answer

Internal back up battery status: NONE

Burn it...
Smack oN the Floor..
It gonna be Oc...

Nov 05, 2008 | O2 Xda IIs Pocket PC

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