Laptop battery connector pinouts
 

Greetings:

I would appreciate _any_ laptop smart battery connector pinouts
for inclusion in a little database I hope to build; the important
pins are for the SMBus, e.g. SDA, SCL and GND. I would especially
appreciate pinouts for the following batteries that I need to test
with a little device I just built:

1. Compaq series 2891 (317172-101, 341846-001)
(used in Armada 7700, 7800 series)
2. Gateway 6500332
3. Dell 75UYF
(used in Inspiron and Latitude various models)

TIA,

Michael

Laptop battery connector pinouts
 

msg wrote:
Greetings:

I would appreciate _any_ laptop smart battery connector pinouts
for inclusion in a little database I hope to build; the important
pins are for the SMBus, e.g. SDA, SCL and GND. I would especially
appreciate pinouts for the following batteries that I need to test
with a little device I just built:

1. Compaq series 2891 (317172-101, 341846-001)
(used in Armada 7700, 7800 series)
2. Gateway 6500332
3. Dell 75UYF
(used in Inspiron and Latitude various models)

TIA,

Michael
google "smart battery workshop" lots of related info.

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Laptop battery connector pinouts
 

mike wrote:

msg wrote:

Greetings:

I would appreciate _any_ laptop smart battery connector pinouts

snip


google "smart battery workshop" lots of related info.


Had done, seems that the original site is redirecting to a Russian-
language only site which has little to do with the product.

I had also inspected the demo version of Accplus hoping that
documentation would contain pinouts but no luck there.

Since I posted this request, I have found several packs from
different vendors which use a standard 5-pin scheme which
groups GND, SCL, SDA at one end of the connector. These
all use a BQ charge controller/gas gauge device. The problem
lies with other packs that don't use the BQ devices and have
more than 5 pins on the connector (some have 8 or more).
Permuting all of the non-power lines has not worked in my
trials to find the signals on these packs. Some of them
may require some enable lines to be asserted or other
conditions be present to communicate. Others may not be
SMBus compliant and use proprietary protocols.

There was a person from Belgium some years ago who began
an investigation of the Armada pack I mentioned in my O.P.
but never reported progress; I will attempt a conatact.

My request for data remains open.

Regards,

Michael