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Black rectangular lithium-ion laptop battery with label showing 11.4V 48Wh

Beisite

Beisite B31N1726 48Wh 11.4V laptop battery

SKU CH-FB0X-2AN3H

Replaces original 48 Wh 11.4 V lithium-ion packs in Asus ROG Strix G15, G512, G531, FX504 and FX86 series laptops

  • ColorBlack
  • TypeBattery
  • CompatibilityFor ROG Strix G15 G512 G512LI G531 G531G G531GT FX86 FA506 F
  • Battery TypeLithium-Ion
  • Battery Voltage11.4V
  • Battery Capacity48Wh
  • 48Wh capacity powers extended sessions away from the mains
  • 4V lithium-ion chemistry matches original Asus specifications
  • Direct replacement for B31N1726 and 31CP7/60/80 part numbers
  • Fits ROG Strix G15, G512, G531, FX504 and FA series laptops
  • Brand-new condition with 12-month supplier warranty coverage

Replacement Battery for ROG Strix Series

This 11.4V lithium-ion pack delivers 48Wh of capacity and replaces part numbers such as B31N1726 and 31CP7/60/80. It fits a wide range of Asus ROG Strix models including the G15 G512 G531 FX86 FA506 FA706 and FX504 families. The unit is supplied new in black.

Sustained Discharge Behaviour

The 48Wh rating supports extended gaming or work sessions without the sharp capacity drop seen in worn cells. Voltage remains stable at 11.4V under continuous load reducing unexpected shutdowns during heavy GPU utilisation. Thermal performance stays consistent because the pack uses standard Li-ion chemistry matched to the original design.

Installation Notes

The battery slots into the existing compartment using the original screw points and connector orientation. No BIOS update or driver installation is required for recognition. Common issues arise only when the replacement part number does not match the laptop service tag so verify the 31CP7/60/80 code before fitting.

Highlights

  • 48Wh capacity powers extended sessions away from the mains
  • 4V lithium-ion chemistry matches original Asus specifications
  • Direct replacement for B31N1726 and 31CP7/60/80 part numbers
  • Fits ROG Strix G15, G512, G531, FX504 and FA series laptops
  • Brand-new condition with 12-month supplier warranty coverage

Specifications

BrandB31N1726
ModelB31N1726
Part Number31CP7/60/80
ColorBlack
TypeBattery
CompatibilityFor ROG Strix G15 G512 G512LI G531 G531G G531GT FX86 FA506 FA706 FX504 Series
Battery TypeLithium-Ion
Battery Voltage11.4V
Battery Capacity48Wh

Questions about this item

Does the 11.4V lithium-ion pack generate noticeable heat when the laptop runs all day?

The battery operates at 11.4V and 48Wh using standard lithium-ion chemistry, so heat output is comparable to the original pack under similar loads.

What must I already own to install this B31N1726 battery?

You need a compatible Asus ROG Strix model such as the G512, G531, FX504, FX86, FA506 or FA706 series and a small Phillips screwdriver to open the bottom case.

Will this 48Wh replacement behave the same as the original 31CP7/60/80 battery in my older FX504?

Yes, it matches the 11.4V voltage, 48Wh capacity and 31CP7/60/80 part number, so charge reporting and runtime remain unchanged.

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