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ThinkPad Advanced Ultrabay Battery II - Overview

Advanced Ultrabay Battery II (43R9250)

Features and specifications

The ThinkPad Advanced Ultrabay Battery II (43R9250) features:

  • Three cells
  • Lithium-Polymer technology
  • Rechargeable bay battery that operates and recharges in Ultrabay
  • Extended unplugged usage time
  • Output voltage: 10.8 V dc (nominal)
  • Battery Performance Amp-Hour: 2.7Ah
  • Battery Performance Watt-Hour: 29Wh

Note: Battery life (and recharge times) will vary based on many factors including screen brightness, applications, features, power management, battery conditioning and other customer preferences.

Physical specifications
  • Approximate height: 10.5 mm (0.41 in)
  • Approximate width: 128.3 mm (5.05 in)
  • Approximate depth: 138.5 mm (5.45 in)
  • Weight: 235 g (0.52 lb)

Operating environment
  • Temperature: 5 deg to 35 deg C (41 deg to 95 deg F)
  • Relative humidity: 8% to 80%
  • Shock: 50cm free drop
  • Vibration (Random RMS): 0.67 G (5 Hz to 500 Hz)


1 year - Customer Replacement Unit (CRU) Service

Hardware compatibility
Machine Type - Models
ThinkPad R60
ThinkPad R61, R61i 14-inch Wide
ThinkPad R61, R61i 14-inch Wide
ThinkPad R61, R61i 15.4-inch Wide
Selected Machine Types. Compatible Machine Types: 7642, 7643, 7644, 7645, 7646, 8914, 8918, 8919, 8920, 8927, 8930, 8932, 8933, 8934, 8935
ThinkPad R400, R500
ThinkPad T60, T60p, T61
ThinkPad T400, T400s, T500
ThinkPad W500
ThinkPad X60, X61, X61s when using the ThinkPad X6 Ultrabase
ThinkPad X60 Tablet, X61 Tablet when using the ThinkPad X6 Tablet Ultrabase
ThinkPad Z60m, Z60t, Z61m, Z61p, Z61t


  • This battery is compatible with the ThinkPad External Battery Charger
  • This battery is not compatible with:
    • ThinkPad R60e and Z61e
    • ThinkPad Reserve Edition (X61LS) using the ThinkPad X6 UltraBase (40Y8116)
    • ThinkPad R61e/R61i 15.4-inch wide Machine Types: 7649, 7650, and 7657

  • Battery
  • Publications

Agency approvals
CE MARK, UL-60950, C-UL, ACA/C-Tick

Additional product information
Publications - Instruction manual for your product
Service parts - Part number listing for your product
Lenovo Support: Batteries: Reference Guide - A list of other batteries
Personal Systems Reference (PSREF) - Comprehensive information on the features and technical specifications of Lenovo products.
All Day Computing ( - Information on batteries, including estimated battery life, and power adapters

If you are unable to find what you are looking for, please do try the following options:
1. Lenovo Assisted Search
2. Product usage and general troubleshooting tips
3. Lenovo Support Forum
4. Technical Support Call Centre

Staat Verfügbarkeit
Dokument-ID : PD009403
Legacy Document ID : MIGR-69713
Zuletzt aktualisiert :
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