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System specifications - ThinkPad 1500 (models 541 and 548 only)
Physical specifications
ThinkPad i Series 1500 with 12.1-inch SVGA TFT
  • Width: 328.0 mm (12.9 in)
  • Depth: 269.0 mm (10.6 in)
  • Height: Front: 41.0 mm (1.59 in) Rear: 44.0 mm (1.73 in)
  • Weight: 3.4 kg (7.3 lb)
(1) Actual specifications may vary based on features, vendor components, or
manufacturing process.

Electrical specifications
  • Universal AC adapter: 100 to 240 V AC, 1.5 A, 50 to 60 Hz
  • Li-Ion battery pack: 10.8 V, 5.4 AH
H eat dissipation
  • 153.5 Btu/hr maximum
Air temperature for shipping and storage
  • -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)

Acoustic noise level
Class 3D (office environment)

Supplemental Information
  • Sound pressure level (operator position): 40 dB (operating)
  • Sound power level: 5.1 Bels (operating), 4.8 Bels (idling)
Note: The noise emission level stated is the declared (upper limit) sound power level, in Bels, for a random sample of machines, typically configured, and operating in idle mode, for example, powered on, but no DASD read/write or other I/O activity. All measurements made in accordance with ANSI S12.10, and reported in conformance with ISO 9296.

Air temperature 0 to 8,000 ft
  • Operating: 5 degrees to 35 degrees C (41 degrees to 95 degrees F)
  • System off: 5 degrees to 43 degrees C (41 degrees to 110 degrees F)
  • Storage/shipment: -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)
  • Wet bulb (maximum): 29.4 degrees C (85 degrees F)

Air temperature: 8,000 to 10,000 ft
  • Operating: 5 degrees to 31.3 degrees C (41 degrees to 88 degrees F)
  • System off: 5 degrees to 43 degrees C (41 degrees to 110 degrees F)
  • Storage/shipment: -20 degrees to 60 degrees C (-4 degrees to 140 degrees F)
  • Wet bulb (maximum): 25.7 degrees C (78 degrees F)

The maximum temperature when the system is on is linearly decreased from 8,000 ft to 10,000 ft.

Relative humidity
  • Operating: 20% to 80% (without diskette)
  • Operating: 20% to 80% (with diskette inside unit)

A ltitude
  • 10,000 ft maximum (3,048 m)

System unit approvals
  • FCC Class-B
  • SMA
  • RFS449
  • UL-1950
  • C-UL
  • BCIQ
  • CCIB

Software requirements
Microsoft Windows 98
Euro currency
IBM considers an IBM product to be EuroReady if the product, when used in accordance with its associated documentation, is capable of correctly processing monetary data in the euro denomination and of respecting the euro currency formatting conventions (including the euro sign). This assumes that all other products (i.e. hardware, software, firmware etc.) that are used with this product are also EuroReady. IBM hardware products that are EuroReady may or may not have an engraved euro sign key on their keyboards.

Currently, EuroReady status applies primarily to IBM products specific to the EMU countries. Products that are not specific to these countries are deemed to be "not ready" for euro unless otherwise stated in the product's country-specific specifications.

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Document ID : PD002077
Legacy Document ID : MIGR-4G6VUQ
Last Updated :
Copyright © Lenovo 2013, all rights reserved
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