Dell Inspiron 4000 - Manual (Page 72)

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Track Stick
Interface PS/2 compatible
X/Y position resolution
(graphics table mode) 240 counts/sec @ 100 gf
Size protrudes 0.5 mm higher that surrounding
keycaps
Power:
Supply voltage 5 V ± 0.5 VDC
Supply current 25 mA (maximum operating for track stick
and touch pad combined)
ESD in accordance with IEC-801-2
Battery
Type 4-cell or 8-cell smart lithium ion
Dimensions:
Depth 88.5 mm (3.48 inches)
Height 21.5 mm (0.83 inch)
Width 139.0 mm (5.47 inches)
Weight 0.39 kg (0.87 lb) (8 cell)
0.22 kg (0.49 lb) (4 cell)
Voltage 14.8 VDC
Capacity 26.5 WHr (4 cell)
53 WHr (8 cell)
Charge time (approximate):
Computer off 1 hour and 6 minutes
Life span (approximate) 500 discharge/charge cycles 0
Temperature range:
Charge 0 ° to 35 ° C (32 ° to 95 ° F) (8 cell)
0 ° to 40 ° C (32 ° to 104 ° F) (4 cell)
Storage –40 ° to 65 ° C (–4 ° to 140 ° F)