PS0122NA1BRS P000845930 15.4V 65Wh 4-Cell Li-Polymer Battery for Dynabook PORTEGE X40L-K Laptop Compatible with PS0122NA1BRS

Never let a dead battery stop you from getting work done again. This brand new replacement battery is specifically designed for the Dynabook PORTEGE X40L-K laptop.

Whether your original battery no longer holds a charge, you need a spare for travel or home use, or your current battery has failed, this high-quality replacement keeps your laptop running when you need it most.

Specifications

Device Model: Dynabook PORTEGE X40L-K

Serial Number Reference: 13074130H

Manufacturer: Dynabook Inc.

Battery Type: 4-cell Lithium-Ion Polymer

Voltage: 15.4V

Capacity: 65Wh

Part Numbers: P000845930 / PS0122NA1BRS

Compatibility

This battery is designed to replace the original battery in the following:

Dynabook PORTEGE X40L-K

Part Numbers: P000845930, PS0122NA1BRS

Please check your original battery part number and laptop model before purchasing to ensure compatibility.

Why Choose This Battery?

Exact match to original Dynabook specifications

65Wh high capacity for all-day productivity

4-cell Li-Polymer for stable and efficient power

No memory effect charge anytime without performance loss

Easy to install user replaceable

Safety & Quality

This replacement battery is built with multiple safety protections against overcurrent, overvoltage, overheating, and short-circuiting. Each unit undergoes quality control testing before shipping to ensure it meets performance standards. While this is a new replacement battery, it is designed to be 100% compatible with your original Dynabook battery specifications.

What's Included

1 x PS0122NA1BRS / P000845930 Replacement Battery for Dynabook PORTEGE X40L-K

Important Notes

Please verify your original battery part number (P000845930 or PS0122NA1BRS) before ordering.

Fully charge before first use.

For best performance, calibrate the battery by fully charging and discharging every 12 months.

Use only the original charger or a certified replacement charger.

Do not expose to extreme temperatures or moisture.