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Rectangular black lithium-ion laptop battery, 48Wh 11.4V

Beisite

Beisite RU03XL 48Wh 11.4V laptop battery for HP ProBook x360 440 G1 11 G3

SKU CH-FCF2-YHFK8

A 48Wh 11.4V lithium-ion replacement battery for HP ProBook x360 440 G1 and 11 G3 models

  • ColorBlack
  • TypeBattery
  • Compatibilityfor ProBook x360 440 G1 ProBook x360 11 G3 Series
  • Battery TypeLithium-Ion
  • Battery Voltage11.4V
  • Battery Capacity48Wh
  • 48 Wh capacity powers the ProBook x360 440 G1 through a full workday
  • 4 V lithium-ion chemistry matches the original HP specification exactly
  • Replaces HP part numbers HSTNN-IB8P, HSTNN-LB8K, L12717-171 and L12717-421
  • Fits both ProBook x360 440 G1 and ProBook x360 11 G3 convertible models
  • Brand-new cell pack supplied with twelve-month supplier warranty

48 Wh replacement battery for HP ProBook x360

This 11.4 V lithium-ion pack replaces the original RU03XL cell in HP ProBook x360 440 G1 and 11 G3 convertibles. It delivers 48 Wh of capacity in a black housing and ships as a single unit ready for installation.

Upgrades a worn or failed factory pack

The battery substitutes part numbers HSTNN-IB8P, HSTNN-LB8K and the L12717 and L12791 series codes listed by the supplier. The jump is worthwhile when the original no longer holds a useful charge or reports a permanent capacity loss.

Verify the exact model and part number first

Confirm that your device is a ProBook x360 440 G1 or 11 G3 and that the original battery carries one of the listed replacement codes. The compatibility list is non-exhaustive, so matching the part number on the old pack is the safest check before ordering.

Highlights

  • 48 Wh capacity powers the ProBook x360 440 G1 through a full workday
  • 4 V lithium-ion chemistry matches the original HP specification exactly
  • Replaces HP part numbers HSTNN-IB8P, HSTNN-LB8K, L12717-171 and L12717-421
  • Fits both ProBook x360 440 G1 and ProBook x360 11 G3 convertible models
  • Brand-new cell pack supplied with twelve-month supplier warranty

Specifications

BrandRU03XL
ModelRU03XL
Part NumberHSTNN-IB8P, HSTNN-LB8K
ColorBlack
TypeBattery
Compatibilityfor ProBook x360 440 G1 ProBook x360 11 G3 Series
Battery TypeLithium-Ion
Battery Voltage11.4V
Battery Capacity48Wh

Questions about this item

Will the RU03XL battery fit inside the ProBook x360 440 G1 chassis without modification?

Yes, it replaces the original HSTNN-IB8P and HSTNN-LB8K packs and matches the 11.4 V 48 Wh form factor for that model.

What is the correct order to connect the RU03XL battery ribbon cable during installation?

Insert the battery connector into the motherboard socket before securing the retaining screws; reversing the order can bend the fragile flex cable.

When should I replace the RU03XL battery in my ProBook x360 11 G3?

Replace it when the laptop no longer holds a useful charge or the operating system reports a significant capacity loss from the original 48 Wh rating.

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