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ThinkPad Battery 37++ (9 Cell) - Overview

ThinkPad W700 9 Cell Lithium-Ion Battery (45J7914)

Features and specifications

The ThinkPad Battery 37++ (9 Cell) (45J7914) is a rechargeable battery using Lithium-Ion technology. It can be used as a replacement for aging system batteries or as a convenient spare battery. Features:

  • Lithium-Ion (Li-Ion) technology
  • Nine-cell, rechargeable system battery
  • Battery Energy: 85 Wh (Watt-hours)
  • Standard system battery specifications
  • Over-discharge protection
  • Previously named: ThinkPad W700 9 Cell Li-Ion Battery


Physical specifications
  • ThinkPad Battery 37++ (9 Cell) (45J7914):
    • Approximate height: 20 mm (0.8 in)
    • Approximate width: 207 mm (8.2 in)
    • Approximate depth: 58 mm (2.3 in)
    • Weight: 0.50 kg (1.10 lb)
  • ThinkPad Battery 37++ (9 Cell) (45J7914):
    • Approximate height: 50 mm (2.0 in)
    • Approximate width: 300 mm (11.8 in)
    • Approximate depth: 135 mm (5.3 in)
    • Weight: 0.60 kg (1.32 lb)



1 year - Customer Replacement Unit (CRU) Service

  • Announce date: 12 Aug 2008 (Worldwide)
  • Planned availability date: 02 Sep 2008 (Worldwide)


Hardware compatibility
Machine Type - Models
ThinkPad W700, W700ds, W701, W701ds

Note: For the latest updates on the compatible systems, please refer to the Accessories Compatibility Guide.

  • Battery
  • Publications


Agency approvals


Additional product information
Service parts - Parts listing for your product
Publications - 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

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

Country Availability
Document ID : PD004160
Legacy Document ID : MIGR-70662
Last Updated :
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