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      IdeaPad U450P/U550 6 Cell Li-Ion Battery - Overview

      Features and specifications

      The IdeaPad U450P/U550 6 Cell Li-Ion battery (57Y6309) provides the longest run time for your IdeaPad U450P and U550 notebook.

      Features and benefits:

      • 6 cell
      • 11.1 V dc
      • Lithium Ion (Li-Ion)
      • Over-discharge protection
      • Offers proven battery technology with balanced performance, capacity, and longevity protection
      • Backed by a one-year limited warranty with renowned Service and Support from Lenovo

      Performance specifications:

      • Color: Black
      • Output voltage: 11.1 V
      • Capacity: 5200 mAH

      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: 20mm (0.7874 inch)
      • Approximate width: 51mm (2.0079 inch)
      • Approximate length: 268mm (10.5512 inch)
      • Approximate weight: 328g (0.723 1b)



      1 year – Limited warranty


      Hardware compatibility

      The IdeaPad U450P/U550 6 Cell Li-Ion Battery is supported on IdeaPad U450P and U550.

      Note: Not compatible with other Idea Pad notebooks.

      • IdeaPad U450P/U550 6 cell Li-Ion Battery
      • Manual


      Agency approvals
      UL, CE, CB, C-tick, GOST, TUV, PSE


      Additional product information
      Service parts - Parts 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


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      • Alias ID: MIGR-74243
      • Document ID: PD000971
      • Last Updated :26 Mar 2014
      • © 2016 Lenovo