We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular lithium-ion laptop battery with connector pins

GOLDIX

GOLDIX WF04XL laptop battery 7.7V 66.52Wh 8210mAh

SKU CH-JA64-C1XQD

A 7.7V 66.52Wh lithium-ion replacement battery compatible with numerous HP Envy 13 and X360 13-BF series laptops

  • ColorBlack
  • TypeBattery
  • Compatibilityfor Envy 13" 13-BF BF0131TU BF0740NZ BF0505NA 13-BF0000 13-b
  • Battery TypeLithium-Ion
  • Battery Voltage7.7V
  • Battery Capacity66.52Wh
  • Longer runtime from 66.52Wh lithium-ion capacity
  • Reliable 7.7V output matches original specification
  • Direct replacement for WF04XL and HSTNN-OB2Y part numbers
  • Fits HP Envy X360 13-BF series convertible laptops
  • Brand-new battery with 12-month manufacturer warranty

Replacement battery for HP Envy 13-BF series

This lithium-ion unit replaces the original WF04XL pack in compatible HP Envy 13-inch convertibles. It supplies 7.7 volts and 66.52 watt-hours of capacity for users whose factory cell no longer holds a charge. The black housing matches the OEM colour scheme.

Voltage and capacity define the runtime envelope

The 7.7 V output is fixed by the laptop's charging circuit, so the pack cannot deliver more power than the system requests. Capacity of 66.52 Wh sets the practical limit for unplugged use; actual life varies with screen brightness, workload and battery age. No higher-voltage or higher-capacity alternative fits this chassis.

Direct-fit design uses the original connector

The replacement aligns with the existing battery bay, reusing the same multi-pin connector and mounting holes. No adapters or cable routing are required during installation. Buyers needing a different form factor or a higher-wattage pack for another laptop series should look elsewhere.

Highlights

  • Longer runtime from 66.52Wh lithium-ion capacity
  • Reliable 7.7V output matches original specification
  • Direct replacement for WF04XL and HSTNN-OB2Y part numbers
  • Fits HP Envy X360 13-BF series convertible laptops
  • Brand-new battery with 12-month manufacturer warranty

Specifications

BrandWF04XL
ModelWF04XL
Part Number21CP5/52/95-2
ColorBlack
TypeBattery
Compatibilityfor Envy 13" 13-BF BF0131TU BF0740NZ BF0505NA 13-BF0000 13-bf0013dx
Battery TypeLithium-Ion
Battery Voltage7.7V
Battery Capacity66.52Wh

Questions about this item

Which WF04XL part number matches my HP Envy 13-BF series laptop?

This battery replaces WF04XL, HSTNN-OB2Y, TPN-IB0O, M89926-1D1, M89926-AC1, M90073-005 and 21CP5/52/95-2, covering every 13-BF model listed including X360 13-BF0000 through 13-BF0003 variants.

What does the 66.52 Wh rating mean for daily runtime on my Envy 13?

At 7.7 V and 66.52 Wh the pack stores 8210 mAh, giving a typical full-day workload on the 13-inch Envy before needing a recharge.

Does the 7.7 V lithium-ion pack use a standard connector that fits the Envy 13-BF motherboard?

Yes, the WF04XL is built to the original HP pinout for the Envy 13-BF series, so it plugs directly into the motherboard without adapters.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.