Lenovo 45N115157 57Wh Battery

Description

Product Overview

This genuine Lenovo 45N115157 57Wh battery provides reliable power for your compatible Lenovo laptop. Manufactured to meet original equipment specifications.

Specifications

• Battery Part Number: 45N115157
• Capacity: 57Wh
• Chemistry: Lithium-ion
• Condition: Brand new, factory fresh

Compatible Part Numbers (P/N)

This battery replaces the following Lenovo part numbers:

• 0C52863, 0C52864
• 45N1144, 45N1145, 45N1146, 45N1147, 45N1148, 45N1149
• 45N1150, 45N1152, 45N1153, 45N1158, 45N1159, 45N1160
• 45N1161, 45N1163, 45N1769, 45N1771, 45N1779
• 5B10W13948, 5B10W13949

Compatible Models

Designed for these Lenovo ThinkPad models:

• ThinkPad L440 (including 20AS, 20AT variants)
• ThinkPad L540 (20AU, 20AV)
• ThinkPad T440p (20AN, 20AW, 78995)
• ThinkPad T540 (20BE, 20BF)
• ThinkPad T540p (20BF, 20BE)
• ThinkPad W540 (20BG, 20BH)
• ThinkPad W541 (20EF, 20EG)
• Lenovo 57, 57+, 57++

When to Consider Battery Replacement

Symptom	Description
Short Battery Life	Laptop powers off quickly when unplugged, lasting significantly less than original runtime
Battery Not Charging	Battery percentage doesn’t increase when connected to power adapter
Swelling/Bulging	Battery case appears swollen or distorted, creating safety concerns
System Errors	Laptop displays “battery not detected” or similar hardware warnings
Age Factor	Battery is over 2-3 years old with noticeable performance degradation
Intermittent Power	Laptop randomly shuts down even with reported battery charge remaining

Compatibility Note

This battery is compatible with additional part numbers and models beyond those listed. If you’re unsure about compatibility, please leave your specific laptop model or current battery part number in the order notes during checkout. We will verify compatibility before shipping.

Shipping & Warranty

• Ships within one business day
• 30-day money-back guarantee
• 1-year manufacturer warranty
• In stock, ready to ship
• Free shipping included
• 100% brand new product