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Black rectangular lithium-polymer laptop battery with 49.81Wh capacity

POWER-FENG

POWER-FENG 49.81Wh ET04XL laptop battery for HP EliteBook x360 1020 G2

SKU CH-BA73-3AQNA

A 49.81Wh 7.7V lithium-polymer replacement battery for the HP EliteBook x360 1020 G2

  • Battery typeLaptop Batteries
  • Product typeBattery
  • Li-polymer chemistry provides stable 7.7 V output
  • 81 Wh capacity supports extended mobile use
  • 6470 mAh rating delivers long run-time per charge
  • Replaces ET04XL, HSTNN-IB7U and OEM part numbers
  • Designed for HP EliteBook x360 1020 G2

Replacement battery for EliteBook x360 1020 G2

This 49.81Wh lithium-polymer unit replaces the original ET04XL pack in the HP EliteBook x360 1020 G2. It delivers 7.7V and 6470mAh in a black housing. The part matches OEM numbers HSTNN-IB7U, 915191-855 and 915030-171.

Critical spec: 49.81Wh capacity

Capacity is the single figure that determines whether this pack restores the runtime the notebook was designed for. A lower-watt-hour cell would shorten battery life; a higher one would not fit the chassis. Verify the 49.81Wh rating against your service manual before ordering.

No bundled accessories or software

The shipment contains only the battery itself. No screwdrivers, installation guides, diagnostic tools or driver discs are included. Buyers who need a complete repair kit must source tools separately. Builders expecting a multi-pack or charging dock will not find them here.

How it compares

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

Price $34.99
Pricier than about 62% of the 27,790 comparable items (median $30.99).

Specifications

Product
Product typeBattery
Power
Battery typeLaptop Batteries

Questions about this item

What does the 49.81Wh capacity mean for daily runtime on the EliteBook x360 1020 G2?

The 49.81Wh rating matches the original ET04XL specification, so the EliteBook x360 1020 G2 should deliver the same typical usage time as when it was new.

How does the 7.7V voltage relate to the laptop's charging circuit?

The 7.7V output is the exact nominal voltage required by the EliteBook x360 1020 G2, ensuring the charging controller recognises the pack and regulates charge current correctly.

Will this battery fit the TPN-I09C chassis without modification?

Yes, the pack is built to the ET04XL form factor and is listed for the EliteBook x360 1020 G2 and TPN-I09C, so it seats in the original bay with no adapters.

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