Funny battery values (nx6325)
j at uriah.heep.sax.de
Wed Mar 17 07:45:51 UTC 2010
As Peter Jeremy wrote:
> >Design capacity: 279 mAh
> >Last full capacity: 279 mAh
> Is this consistent or does it vary from boot to boot or if you
> disconnect and reconnect the battery?
Currently, my wife is on a business trip with that machine.
Hopefully, I'll also get a statement about how long it lasts on
battery once she is back ;-), and I'll re-check those values then.
> >The battery is declared as 55 Wh, which would correspond to 5.1 Ah
> >(probably 3 x 2 x 18650 cells).
> But is also over 3 years old. Almost everything you do to LiION
> batteries makes their capacity drop.
That's right, but it wouldn't be supposed to affect the "Design
capacity", would it? ;)
Can anybody tell where these values actually come from? I could
perhaps even build a small microcontroller gadget, in order to query
the battery for its values offline (using I²C aka SMbus) in order to
see where the mistake might be.
cheers, J"org .-.-. --... ...-- -.. . DL8DTL
http://www.sax.de/~joerg/ NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)
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