Camcorder battery - not charging

Z

Zev Berkovich

Guest
Hi,

I have a camcorder battery, which was previously working perfectly.
Earlier this year, I was getting over two hours of use out of it.

I had the camera stored away for a few months, and stupidly, I left
the battery in the camera.

Now, when I use the charger, the battery charge indicator will turn
on, and show that it is charging. After a while, the charge indicator
turns off as if the battery is fully charged, however when I turn on
the camera, I get nothing.

When I put the battery in the charger and press "DISCHARGE", it will
discharge in about a second and show that it's charging again.
However, after about 10 cycles like this, I'm still not getting a
charge.

The battery is a 2700mAH Nicad, for a JVC camera (+, -, and T
contacts).

My question is, how to restore a battery which I think could be
working again.

I have had success in the past zapping batteries using a high value
capacitor and some voltage. That was using individual cells, however.

I am not sure what the implications doing that on a video camera
battery.

Any advice would be appreciated.

Thanks!
 
"Zev Berkovich" <zvberkov@hotmail.com> wrote in message
news:a73e0c36.0309040215.66f7978b@posting.google.com...
Hi,

I have a camcorder battery, which was previously working perfectly.
Earlier this year, I was getting over two hours of use out of it.

I had the camera stored away for a few months, and stupidly, I left
the battery in the camera.

Now, when I use the charger, the battery charge indicator will turn
on, and show that it is charging. After a while, the charge indicator
turns off as if the battery is fully charged, however when I turn on
the camera, I get nothing.

When I put the battery in the charger and press "DISCHARGE", it will
discharge in about a second and show that it's charging again.
However, after about 10 cycles like this, I'm still not getting a
charge.

The battery is a 2700mAH Nicad, for a JVC camera (+, -, and T
contacts).

My question is, how to restore a battery which I think could be
working again.

I have had success in the past zapping batteries using a high value
capacitor and some voltage. That was using individual cells, however.

I am not sure what the implications doing that on a video camera
battery.

Any advice would be appreciated.

Thanks!
Click to expand...
It's time to replace the battery.
 
The way it sounds, it is time for a new battery. This zapping thing
does not really work for long.

--

Greetings,

Jerry Greenberg GLG Technologies GLG
==============================================
WebPage http://www.zoom-one.com
Electronics http://www.zoom-one.com/electron.htm
Instruments http://www.zoom-one.com/glgtech.htm
==============================================
"Zev Berkovich" <zvberkov@hotmail.com> wrote in message
news:a73e0c36.0309040215.66f7978b@posting.google.com...
Hi,

I have a camcorder battery, which was previously working perfectly.
Earlier this year, I was getting over two hours of use out of it.

I had the camera stored away for a few months, and stupidly, I left
the battery in the camera.

Now, when I use the charger, the battery charge indicator will turn
on, and show that it is charging. After a while, the charge indicator
turns off as if the battery is fully charged, however when I turn on
the camera, I get nothing.

When I put the battery in the charger and press "DISCHARGE", it will
discharge in about a second and show that it's charging again.
However, after about 10 cycles like this, I'm still not getting a
charge.

The battery is a 2700mAH Nicad, for a JVC camera (+, -, and T
contacts).

My question is, how to restore a battery which I think could be
working again.

I have had success in the past zapping batteries using a high value
capacitor and some voltage. That was using individual cells, however.

I am not sure what the implications doing that on a video camera
battery.

Any advice would be appreciated.

Thanks!
 
Hi All,

Thanks for your help. I received an email that answered my question.

According to someone with experience in the repair industry, two or
three zaps with a 13.8v 10amp power supply can correct these types of
problems.

I didn't happen to have a 10 amp power supply handy, but I used
something which was just as effective.

I took a 12v 7aH gel cell, and used a thin set of leads to zap the
camcorder battery.

I followed the instructions otherwise, and the battery is working fine
now.

It sounds like a 'bodgy' approach, but as I recall it has basis in
scientific fact. From what I remember, nicads can develop crystals,
which can be broken up using voltage.


zvberkov@hotmail.com (Zev Berkovich) wrote in message news:<a73e0c36.0309040215.66f7978b@posting.google.com>...
Hi,

I have a camcorder battery, which was previously working perfectly.
Earlier this year, I was getting over two hours of use out of it.

I had the camera stored away for a few months, and stupidly, I left
the battery in the camera.

Now, when I use the charger, the battery charge indicator will turn
on, and show that it is charging. After a while, the charge indicator
turns off as if the battery is fully charged, however when I turn on
the camera, I get nothing.

When I put the battery in the charger and press "DISCHARGE", it will
discharge in about a second and show that it's charging again.
However, after about 10 cycles like this, I'm still not getting a
charge.

The battery is a 2700mAH Nicad, for a JVC camera (+, -, and T
contacts).

My question is, how to restore a battery which I think could be
working again.

I have had success in the past zapping batteries using a high value
capacitor and some voltage. That was using individual cells, however.

I am not sure what the implications doing that on a video camera
battery.

Any advice would be appreciated.

Thanks!
Click to expand...
 
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