The A31N1519 is the OEM-grade replacement battery for ASUS X540, X540L, X540LA, X540LJ, X540S, X540SA, X540SC, X540YA, A540, A540LA, F540, F540SC, R540S and R540SA laptops. Rated at 10.8V / 36Wh (3400mAh), it uses Japanese Li-ion cells for consistent capacity and long service life. Multi-layer BMS protection and a precision 1:1 fit make installation plug-and-play.
Product Specifications
| Battery Model: | A31N1519 |
| Capacity: | 3400mAh / 36Wh |
| Voltage: | 10.8V |
| Battery Type: | Li-ion |
| Cell Origin: | Made in Japan |
| Color: | Black |
| Condition: | 100% Brand New |
| Warranty: | 1-Year Warranty |
Replace Part Numbers
- A31N1519
Compatible Laptop Models
- ASUS X540 / X540L / X540LA
- ASUS X540LJ / X540S / X540SA
- ASUS X540SC / X540YA
- ASUS A540 / A540LA
- ASUS F540 / F540SC
- ASUS R540S / R540SA
FAQ
- Q: Will the A31N1519 work in an ASUS X540SC?
- A: Yes. It covers the full X540 family — X540, X540L, X540LA, X540LJ, X540S, X540SA, X540SC, X540YA — plus A540/A540LA, F540/F540SC and R540S/R540SA, all rated at 10.8V / 36Wh.
- Q: How long does installation take?
- A: About 3–5 minutes for a technician. The battery has a precision-molded frame that aligns to the original mounts.