Lenovo Z61t User Manual
Page 63
v
Temperature
–
At
altitudes
up
to
2438
m
(8000
ft)
-
Operating
with
no
optical
disc
in
the
drive:
5°
to
35°C
(41°
to
95°F)
-
Operating
with
an
optical
disc
in
the
drive:
10°
to
35°C
(50°
to
95°F)
-
Non-operating:
5°
to
43°C
(41°
to
110°F)
–
At
altitudes
above
2438
m
(8000
ft)
-
Maximum
operating
temperature,
31.3°C
(88°
F)
Note:
When
you
charge
the
battery
pack,
its
temperature
must
be
at
least
10°C
(50°F).
v
Relative
humidity:
–
Operating
with
no
optical
disc
in
the
drive:
8%
to
90%
–
Operating
with
an
optical
disc
in
the
drive:
8%
to
80%
Heat
output
v
65
W
(222
Btu/hr)
maximum
or
90
W
(307
Btu/hr)
maximum
(depending
on
the
model)
Power
source
(ac
adapter)
v
Sine-wave
input
at
50
to
60
Hz
v
Input
rating
of
the
ac
adapter:
100-240
V
ac,
50
to
60
Hz
Battery
pack
v
Lithium-ion
(Li-Ion)
battery
pack
–
Nominal
voltage:
10.8
V
dc,
14.4
V
dc
or
10.8
V
dc
/14.4
V
dc
(depending
on
the
model)
–
Capacity:
2.6
Ah,
5.2
Ah
or
7.8
Ah
(depending
on
the
model)
Battery
life
v
For
detailed
information
on
battery
life,
see
the
Power
Manager
Gauge
in
the
task
tray.
Specifications
Appendix
C.
Features
and
Specifications
55