BATTERY TECHNOLOGY- BTI 

BATTERY TECHNOLOGY- BTI LN-X121E BTI Notebook Battery

Mfg Part Number:  LN-X121E  
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Price: $90.06 + Free Shipping
Quantity:
In Stock: 4
Last Updated: Nov 19, 2025
No Sales Tax except these states
, PO and Wire.
Main Specification
General Information
Manufacturer Battery Technology, Inc
Manufacturer Part Number LN-X121E
Manufacturer Website Address http://www.batterytech.com
Brand Name BTI
Product Name Notebook Battery
Product Type Battery
Battery Information
Application/Usage Notebook
Battery Rechargeable Yes
Battery Size Proprietary Battery Size
Battery Chemistry Lithium Ion (Li-Ion)
Battery Capacity 5600 mAh
Battery Energy 60 Wh
Number of Cells 6
Output Voltage 10.8 V DC
Miscellaneous
Compatible to OEM Part Number
  • 42T4951
  • 42T4952
Compatibility Lenovo ThinkPad Notebooks:
  • X121E
  • X130E
  • X131E
Country of Origin China
Environmentally Friendly Yes
Environmental Compliance Waste Electrical and Electronic Equipment Directive (WEEE)
Warranty
Limited Warranty 18 Month
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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