On Tue, 01 Feb 2005 17:40:38 -0800, mike wrote:

Billa wrote:
first please forgive me if this is out of topic
....
Sice I lost the original cable I'm trying to find instruction to build
a charger for my digital-camera battery.
It's a DPS-9000 digipower 7,2 Volts ?mAh Li-Ion

I have to find specification/drawings/suggestions to build a device
that will charge properly my battery without making it explode, using
a 15.0 volts dc 800 mAh as input (one of the two components of the
switching power supply has this output, and I've lost the second
component!!)

I hope to find suggestions (any kind) in this newsgroup!

tnx

Don't even try.
If you have to ask the question, you're not gonna be able to do it
safely. And anybody who gave you specific advice would be liable
if/when you set yourself on fire.
mike

Mike is correct, if you don't know what you're doing Li-on batteries
can cause serious harm.(They'll blow up under just about any kind of
abuse, such as being exposed to heat or overcharging. i.e.
overcharging is a definite no-no.)
That said I got tired of my li-on camcorder batteries dieing in
mid-life as well.( the control circuit/brain inside the module that
actually controls the charge rate and output tends to die long before
the Li-on cells themselves die outright.)
I have several DV camcorders that I've successfully adapted Nicads too
to get away from this problem

Exactly what model of camcorder do you have? I'm guesiing that at 7.2v
it's a bit older than the later one's that run on 7.4v.(I have both
types.)
I took all my Canon Zr series DV cams that run on 7.4v modules and
switched them over to 9.6 volt Nicad cordless drill batteries.( gotten
at my local Harbor Freight for 3.99 each)
The ZR's ACTUALLY run on 9.5v which the battery module steps up from
the 7.4 Li-on's.
Look at the voltage rating that's written on the camera around the
plug for the AC adapter/charger on your particular camera.
That's the voltage you'll need to match in whatever battery module you
use as a replacement.
If it's an odd value you can add or subtract cells as needed to match
it.
Use either Nicads or Nimh as they're the easiest/safest to charge.
Chargers for these type cells can be gotten cheaply and easily.(I have
a Ray-O-Vac charger that'll charge both types )
If you prefer to stay oem try this link, I've gotten good quality
aftermarket modules for various cameras at a good price from him.

www.thebattman.com