If you’re looking for a reliable budget gaming laptop, the ASUS TUF series offers solid choices like the FX504, FX505, FX80, FX80GD, FX86, FX86FM, and FX86FE. These laptops deliver great value for everyday gaming and multitasking.
But no matter which model you choose, one upgrade matters most over time: the B31N1726 battery for ASUS FX504 FX505 FX80 FX86. This 11.4V 48Wh battery is fully compatible with all these models.
Let’s break down the key differences—and why this battery is your best replacement option.
💻 Design & Build
- FX504: Tough, military-style build but a bit bulky.
- FX505: Slimmer with thinner bezels. Looks more modern.
- FX80/FX86: Same rugged style with minor refinements and better upgradability.
👉 All models support easy battery replacement. The B31N1726 battery for ASUS FX504 FX505 FX80 FX86 fits perfectly.
🎮 Performance
- FX504: Intel i5/i7 with GTX 1050 or 1050 Ti. Great for entry-level gaming.
- FX505: Offers Ryzen CPUs and supports NVMe SSDs. Better multitasking.
- FX86 Series: Comes with i7-8750H and GTX 1050. Ideal mid-range gaming setup.
If your battery drains fast, swap it out with the B31N1726 battery for ASUS FX504 FX505 FX80 FX86 to boost unplugged time.
🖥️ Display
- FX504: 120Hz TN panel. Fast but narrow viewing angles.
- FX505/FX86: IPS screen upgrades, up to 144Hz. Brighter and sharper visuals.
🔋 Battery & Upgrades
Battery life is average across the board—about 4–6 hours depending on usage. These laptops are easy to open, so upgrading the battery is simple.
✅ Best choice: the B31N1726 battery for ASUS FX504 FX505 FX80 FX86 — original fit, stable power, and great value.
⚙️ Other Specs
- Storage: SATA or NVMe SSD + 1TB HDD in many configs.
- Ports: USB-A, HDMI, Ethernet—no USB-C in most models.
- Thermals: FX505 and FX86 have improved cooling over FX504.
🏁 Final Verdict
- Choose FX504 if you want a tough laptop with great value.
- Go for FX505 for slim design + IPS screen.
- Pick FX86 if you need strong i7 performance without RTX pricing.
Whatever you pick, don’t forget to upgrade with the B31N1726 battery for ASUS FX504 FX505 FX80 FX86 for better performance and longer life.