Asus B31N1842 42Wh.jpg Battery

Description

Product Overview

This is a genuine replacement battery for select ASUS laptops. It maintains the original specifications and performance of your device’s original battery.

Specifications

• Part Number: B31N1842
• Capacity: 42Wh
• Condition: Brand New
• Warranty: 1 Year

Compatible Part Numbers (P/N)

This battery directly replaces the following ASUS part numbers:

• 0B200-03440000
• 0B200-03440100
• 0B200-03440200
• B31BmE1

Compatible Laptop Models

This battery is compatible with these ASUS laptop models:

• ExpertBook P1 P1511CEA
• VivoBook 15 K513EA
• VivoBook 15 S513EA
• VivoBook 15 S513IA
• VivoBook 15 X513EA
• VivoBook 15 X513EP
• VivoBook 15 X513EQ
• VivoBook 15 X513UA
• VivoBook 15 X515EP
• VivoBook S15 S531FA
• VivoBook S15 S531FL
• VivoBook S15 S533EP
• VivoBook S15 S533UA
• X513IA

When to Consider Battery Replacement

Here are common signs indicating you may need a new laptop battery:

Symptom	Description
Short Battery Life	Battery drains significantly faster than when new, lasting less than an hour
Swelling/Bulging	Battery case appears swollen or causes trackpad/keyboard to bulge
Not Holding Charge	Battery doesn’t charge fully or discharges rapidly even at high percentages
System Warnings	Laptop displays “Consider replacing your battery” or similar messages
Random Shutdowns	Computer turns off unexpectedly even with reported charge remaining
Charging Issues	Battery won’t charge or requires frequent adapter reconnection
Age	Battery is 2-3 years old with noticeable performance degradation

Compatibility Note

The compatibility list above is not exhaustive. If you don’t see your specific laptop model or battery part number listed, please leave your model number or current battery part number in the order notes during checkout. We will verify compatibility before shipping.

Shipping & Warranty

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