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Table 7. Specifications (continued)
Feature Description
Modem v ThinkPad Modem (MDC-1.5, 56 kbps HDA)
Touch pad v UltraNav
®
ThinkLight
®
Yes
Battery v Li-ion battery (4 cells) 2.6 Ah
v Li-ion battery (6 cells) 2.6 Ah
v Li-ion battery (6 cells) 2.8 Ah
v Li-ion battery (7 cells) 2.6 Ah
v Li-ion battery (9 cells) 2.6 Ah
v Ultrabay Slim Li Polymer battery (3 cells) (for T61)
AC adapter v 65-watt type
v 90-watt type
Preinstalled operating
system
v Windows XP Professional
v Windows Vista
®
Home Basic
v Windows Vista Home Premium (32 bit)
v Windows Vista Business (32 bit)
v Windows Vista Business (64 bit)
v Windows Vista Ultimate (32 bit)
v SUSE
™
Linux
®
Enterprise Desktop 10
48 ThinkPad T61, R61, and R61i (14.1-inch widescreen) Hardware Maintenance Manual