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Black rectangular laptop battery with short cable, 10.35 by 3.25 by .2 inches

GreenTechLLC

GreenTechLLC B31N1726 48WHR 11.4V 4240mAh 3-cell laptop battery (Short Cable)

SKU CH-PTNB-SNM5Y

A 48 Wh three-cell lithium-ion pack at 11.4 V fits ASUS FX80, FX86 and TUF Gaming FX504, FX505, FA506IU and FA706II models with a short cable

  • Battery type3 Cell Lithium-Ion
  • Battery voltage rating11.4 V
  • Battery capacity4240mah
  • Measurements10.35 × 3.25 × 0.2 in
  • Product colorBlack
  • Product typeBattery
  • Ready for ASUS TUF Gaming FX504, FX505, A15 FA506IU and A17 FA706II
  • 48 Wh capacity delivers long runtime between charges
  • 4 V 3-cell lithium-ion matches original voltage
  • Compact 10.35 x 3.25 x .2 in design fits the battery bay
  • CE FCC RoHS certified for safe daily use

Replacement Battery for ASUS TUF Gaming Laptops

This new GreenTech lithium-ion battery replaces OEM part numbers B31N1726, B31N1726-1, B31BNEH, B31BN91 and A41LK9H. It fits multiple ASUS FX80, FX86 and TUF Gaming FX504, FX505, A15 FA506IU and A17 FA706II models. The pack uses a short cable connector and measures 10.35 x 3.25 x .2 inches.

48 Wh Capacity at 11.4 Volts

The single specification that determines fit is the 48 Wh energy rating combined with an 11.4 V output. Your laptop must accept this exact voltage and watt-hour value; a different rating will not work even if the physical shape appears similar. Always verify the original battery label before ordering.

Three-Cell Pack Delivers 4240 mAh

The three-cell design provides 4240 mAh of charge, suited for typical daily workloads on compatible 15-inch and 17-inch machines. Runtime decreases under sustained high-performance loads such as gaming or rendering. The pack weighs .6 lb and carries CE, FCC and RoHS safety certifications. It is not for users needing higher-capacity packs or models requiring a long cable connector.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $45.99
Pricier than about 78% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameGreenTech
Model nameB31N1726, B31N1726-1, B31BNEH, B31BN91, A41LK9H
Part numberB31N1726, B31N1726-1, B31BNEH, B31BN91, A41LK9H
Product colorBlack
Product typeBattery
Power
Battery type3 Cell Lithium-Ion
Battery voltage rating11.4 V
Battery capacity4240mah
Size & build
Measurements10.35 × 3.25 × 0.2 in
Product weight0.6 lb (0.27 kg)
Compatibility
Compatible withASUS FX80, FX80G, FX80GD, FX80GE, FX80GM, FX86, FX86FE, FX86FM, TUF GAMING FX504GD, FX504GE, FX504GM, FX505DT, FX505DV, FX505DU, FX505DY, FX505GE, FX505GD, FX505GM, A15 FA506IU, A17 FA706II

Questions about this item

What does the 48WHR rating mean for daily runtime on my ASUS FX505?

The 48WHR capacity at 11.4V and 4240mAh typically delivers several hours of mixed use on compatible ASUS FX505 models, though actual runtime varies with screen brightness, workload and power settings.

How does the 11.4V output interact with the laptop's charging circuit?

The 11.4V nominal voltage matches the original B31N1726 specification, so the ASUS charging controller recognises it normally and manages charge cycles without firmware changes.

Will the 10.35 x 3.25 x 0.2 inch case and short cable fit my FA506IU chassis?

Yes — those dimensions and the short cable match the OEM B31N1726 form factor used in the FA506IU, FA706II and all listed FX504, FX505 and FX80 models.

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