login Account
Unsupported Browser Detected: Dear user, the browser you’re currently using is not supported by this website. Please click here for more information about the browsers we support and how to obtain them.

ThinkPad Battery 41+ (6 cell) - Overview

ThinkPad T/R/W/SL 6 Cell Battery 40Y6799

Features and specifications

The ThinkPad Battery 41+ (6 cell) (40Y6799) features:

  • Lithium-Ion (Li-Ion) technology
  • Battery Energy: 56.16 Wh (Watt-hours)
  • Standard system battery specifications
  • Over-discharge protection
  • Compatible with the ThinkPad External Battery Charger (40Y7625)
  • Previously named as:
    • ThinkPad T/R/W/SL Series 6 Cell Li-Ion Battery
    • ThinkPad R60, R60e, T60, and T60p series 6 cell Li-Ion battery


  • This battery is also available in a retail packaged version for Europe. This design is for showcasing retail setting. The retail packaged version has the following languages: English, Italian, Polish, Slovakian, Slovenian, German, Greek, Czech and French. The option marketing part number is 45J7967
  • 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
  • ThinkPad Battery 41+ (6 cell) (40Y6799)
    • Approximate height: 20 mm (0.8 in)
    • Approximate width: 206 mm (8.1 in)
    • Approximate depth: 58 mm (2.3 in)
    • Weight: 0.33 kg (0.73 lb)
  • ThinkPad Battery 41+ (6 cell) (40Y6799) packaged in a carton:
    • Approximate height: 54 mm (2.1 in)
    • Approximate width: 238 mm (9.4 in)
    • Approximate depth: 146 mm (5.7 in)
    • Weight: 0.45 kg (1.0 lb)


1 year Limited customer carry-in exchange

  • Announce date: 05 Jan 2006 (Worldwide)
  • Planned availability date: 14 Feb 2006 (Worldwide)

Hardware compatibility
Machine - Models
ThinkPad R60, R60e
ThinkPad R61 15.4-inch wide, 15-inch standard, and 15.4-inch wide models
ThinkPad R61i 15.4-inch wide, 15-inch standard, and 15.4-inch wide models
ThinkPad R500
ThinkPad SL300, SL400, SL500
ThinkPad T60, T60p
ThinkPad T61 14-inch standard models, 15.4-inch wide models
ThinkPad T500
ThinkPad W500


  • Battery
  • Publications

Agency approvals
CE MARK, UL-1950, C-UL, ACA/C-Tick

Additional product information
Service parts - Parts listing for your product
<empty> User's guide - Instruction manual 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

  • Alias ID: MIGR-62480
  • Document ID: PD008374
  • Last Updated :12/10/2014
  • (c) 2014 Lenovo