<s>
Smart	B-Algorithm
Battery	I-Algorithm
System	I-Algorithm
(	O
SBS	O
)	O
is	O
a	O
specification	O
for	O
managing	O
a	O
smart	B-Algorithm
battery	I-Algorithm
,	O
usually	O
for	O
a	O
portable	B-Device
computer	I-Device
.	O
</s>
<s>
It	O
allows	O
operating	B-General_Concept
systems	I-General_Concept
to	O
perform	O
power	O
management	O
operations	O
via	O
a	O
smart	B-Algorithm
battery	I-Algorithm
charger	I-Algorithm
based	O
on	O
remaining	O
estimated	O
run	O
times	O
by	O
determining	O
accurate	O
state	B-Algorithm
of	I-Algorithm
charge	I-Algorithm
readings	O
.	O
</s>
<s>
Communication	O
is	O
carried	O
over	O
an	O
SMBus	B-Algorithm
two-wire	O
communication	O
bus	O
.	O
</s>
<s>
The	O
Smart	B-Algorithm
Battery	I-Algorithm
System	I-Algorithm
defines	O
the	O
SMBus	B-Algorithm
connection	O
,	O
the	O
data	O
that	O
can	O
be	O
sent	O
over	O
the	O
connection	O
(	O
Smart	B-Algorithm
Battery	I-Algorithm
Data	I-Algorithm
or	O
SBD	O
)	O
,	O
the	O
Smart	B-Algorithm
Battery	I-Algorithm
Charger	I-Algorithm
,	O
and	O
a	O
computer	O
BIOS	B-Operating_System
interface	O
for	O
control	O
.	O
</s>
<s>
A	O
special	O
integrated	O
circuit	O
in	O
the	O
battery	O
pack	O
(	O
called	O
a	O
fuel	O
gauge	O
or	O
battery	B-Algorithm
management	I-Algorithm
system	I-Algorithm
)	O
monitors	O
the	O
battery	O
and	O
reports	O
information	O
to	O
the	O
SMBus	B-Algorithm
.	O
</s>
