Laptop battery won't output voltage
 

Dell Sony Battery pack from 8200 Inspiron type 66Whr
System didn't like it, either slot. Won't charge it and flashes LEDs
strangely. Happy with other pack either slot.
-- System OK
battery pack button indicates one LED level
took it apart, reading battery voltage directly shows 3.6 volts on all
pairs - total 14.5 volts (4 pairs) -- batteries OK
Voltage on terminal output leads from board about 2 volts.
-- electronics problem.

where can I get a pack with bad batteries??
a schematic??
whatever??

thanks

Laptop battery won't output voltage
 

wrote in message
...
Dell Sony Battery pack from 8200 Inspiron type 66Whr
System didn't like it, either slot. Won't charge it and flashes LEDs
strangely. Happy with other pack either slot.
-- System OK
battery pack button indicates one LED level
took it apart, reading battery voltage directly shows 3.6 volts on all
pairs - total 14.5 volts (4 pairs) -- batteries OK
Voltage on terminal output leads from board about 2 volts.
-- electronics problem.


Maybe, maybe not. It is likely a 'smart battery' and maybe the electronics
are shutting down the output.

where can I get a pack with bad batteries??
a schematic??
whatever??


It's possible the cells are at the end of their life and the electronics can
sense this. Doing off-load voltage measurements of cells is fairly
meaningless, you need to present them with a reasonable load.

However, you should be able to pick up a battery on eBay, I've picked up
laptop batteries up there in the past quite cheaply.

Dave

Laptop battery won't output voltage
 

Getting a schematic of a laptop battery is harder than getting a
nuclear fusion details...they keep it away from electroFans 2 keep
sucking our money......Anyhow, Ur problem may(and may not) be solved by
creating an external (smaller duty) cell group, connect it in parallel
with the old one b4 disconnecting the cells 2 test them independently.
This is bcoz some of electronic board inside the battery may shut off
premanent and lose code if cut off power.

Good luck

Laptop battery won't output voltage
 

On Sun, 16 Apr 2006 17:09:08 +0100, "Dave D"
wrote:


wrote in message
.. .
Dell Sony Battery pack from 8200 Inspiron type 66Whr
System didn't like it, either slot. Won't charge it and flashes LEDs
strangely. Happy with other pack either slot.
-- System OK
battery pack button indicates one LED level
took it apart, reading battery voltage directly shows 3.6 volts on all
pairs - total 14.5 volts (4 pairs) -- batteries OK
Voltage on terminal output leads from board about 2 volts.
-- electronics problem.


Maybe, maybe not. It is likely a 'smart battery' and maybe the electronics
are shutting down the output.

where can I get a pack with bad batteries??
a schematic??
whatever??


It's possible the cells are at the end of their life and the electronics can
sense this. Doing off-load voltage measurements of cells is fairly
meaningless, you need to present them with a reasonable load.

However, you should be able to pick up a battery on eBay, I've picked up
laptop batteries up there in the past quite cheaply.

Dave

That is where this one came from about 18 months ago.
the LED test pretty much says it. It must be reading at the output.
although... I don't think 2 volts would light up anything.
There was a way to reset the smart processor on my Micron batteries,
but I don't know if there is a reset line at the terminals of this
one.

Laptop battery won't output voltage SUCCESS!!!!!!!
 

On 16 Apr 2006 10:39:49 -0700, "Goldenshuttle"
wrote:

Getting a schematic of a laptop battery is harder than getting a
nuclear fusion details...they keep it away from electroFans 2 keep
sucking our money......Anyhow, Ur problem may(and may not) be solved by
creating an external (smaller duty) cell group, connect it in parallel
with the old one b4 disconnecting the cells 2 test them independently.
This is bcoz some of electronic board inside the battery may shut off
premanent and lose code if cut off power.

Good luck

I was right. I found a spec sheet on the processor and somehow managed
to reset it.
Battery just finished fully charging.
when I did reset it I got no light when I pushed the button.
Thought I totally broke it, but it made sense - it didn't think it was
charged. It charged pretty quickly so I don't think it was totally
dead.

Laptop battery won't output voltage SUCCESS!!!!!!!
 

Laptop battery won't output voltage
 

When these batteries are not under load, they may usually read okay. The
proper test is under full load. The most common fault is that the batteries
stop performing properly, and must be replaced. The expected lifespan is
usually about 2 to 4 years.

--

JANA
_____


wrote in message
...
Dell Sony Battery pack from 8200 Inspiron type 66Whr
System didn't like it, either slot. Won't charge it and flashes LEDs
strangely. Happy with other pack either slot.
-- System OK
battery pack button indicates one LED level
took it apart, reading battery voltage directly shows 3.6 volts on all
pairs - total 14.5 volts (4 pairs) -- batteries OK
Voltage on terminal output leads from board about 2 volts.
-- electronics problem.

where can I get a pack with bad batteries??
a schematic??
whatever??

thanks