B31N1726 Laptop Battery for Asus TUF and FX Series - Reliable

In this review the focus is a direct replacement battery for a range of Asus TUF and FX laptops, and the bottom line is simple: it is a practical, budget-minded option for users who need a like-for-like replacement with safety circuitry. The reviewer found the B31N1726 battery best for students, gamers on a budget, and technicians who need a quick swap; its 11.4V, 48Wh Li-polymer pack and 3-cell design match many original equipment specifications and include built-in protection against overcurrent, overcharge, overdischarge and temperature extremes.

Key Features

• Power Specs: The 11.4V, 48Wh Li-polymer pack delivers capacity aligned with many factory batteries so run times should be comparable to the original in light to moderate use.
• Safety Circuitry: Integrated overcharge, overdischarge, overcurrent and temperature control functions reduce the risk of battery damage and make it safer for everyday laptop use.
• Compatibility: Explicit compatibility with many Asus TUF and FX series models simplifies selection and reduces the chance of ordering the wrong part when customers search their model or part number.
• Build Quality: Assembled from quality materials and circuit boards, the unit is designed for steady charging and lower standby drain compared with older degraded packs.
• Warranty & Support: Includes a 30-day refund window and a 12-month warranty with vendor support for returns and questions.
• Durability: Rated for up to 500 recharge cycles under normal conditions, which is a reasonable expectation for a daily driver replacement battery.

Who It's For

This battery is aimed at owners of Asus TUF Gaming FX504, FX505, FX80, FX86 and TUF A15/A17 machines who need a straightforward replacement that matches original voltage and cell count. It suits students, freelance creatives, and gamers who want to restore portable runtime without paying OEM premium prices.

Users who rely on maximum battery run time for prolonged field work or who need the absolute top-tier longevity should consider higher-capacity aftermarket options or refurbished OEM packs; also, owners of laptops outside the explicitly listed models should verify the part number before purchasing.

Pros & Cons

Pros

• Direct physical and electrical replacement for many Asus TUF and FX series models, so fit and installation are straightforward.
• Comprehensive protection circuits improve day-to-day safety during charging and discharging.
• Good value with included 12-month warranty and a 30-day refund policy for peace of mind.
• Rated up to 500 recharge cycles, offering a reasonable lifespan for typical users.

Cons

• Charge rate and perceived battery quality received mixed customer feedback, so results may vary compared with an original factory pack.
• Capacity is 48Wh which matches many originals but is not a high-capacity upgrade for extended unplugged sessions.

Specifications

Our Verdict

The B31N1726 replacement battery is a sensible, cost-effective option for owners of supported Asus TUF and FX laptops who need a reliable, safetyfocused swap that mirrors original voltage and cell count. It is best for users who want correct fit and dependable basic performance rather than a major capacity upgrade, and the included warranty makes it a practical buy for most everyday users.

Frequently Asked Questions

Will this battery fit my Asus TUF FX505?
Yes - the B31N1726 lists compatibility with the FX505 series, but confirm your exact model and part number before ordering.

How long does the battery last compared with the original?
Capacity matches many originals at 48Wh, so expect comparable run time under similar workloads; long term longevity is rated up to about 500 charge cycles.

What protections are included?
Built-in overcharge, overdischarge, overcurrent, short-circuit and temperature control protections are part of the battery design.