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Black rectangular laptop battery with smooth finish

POWER-FENG

POWER-FENG 46Wh 11.1V SB03XL laptop battery

SKU CH-KF7S-29HV3

46 Wh 11.1 V lithium-polymer replacement battery for HP EliteBook 720, 725, 820 and 825 G1 and G2 models

  • TypeBattery
  • Battery TypeLaptop Batteries
  • Li-polymer chemistry delivers stable 11.1V output
  • 46Wh capacity supports extended mobile work sessions
  • 4000mAh rating provides reliable all-day power
  • Direct replacement for SB03XL and HSTNN part numbers
  • Compatible with EliteBook 720, 725, 820 and 825 G1/G2

Compatible HP EliteBook models

This 11.1 V lithium-polymer battery replaces part numbers SB03XL, HSTNN-IB4T, HSTNN-LB4T, 717378-001, 716726-421 and 716726-1C1. It fits HP EliteBook 720 G1 and G2, 725 G1 and G2, 820 G1 and G2, and 825 G1 and G2 notebooks. The pack delivers 46 Wh or 4000 mAh of capacity in a black housing.

Thermals and power draw

Li-polymer chemistry keeps internal resistance low, so the pack runs cool during typical office workloads and web browsing. Normal charge and discharge cycles produce no audible noise because there are no moving parts. The 11.1 V output matches the original specification for steady power delivery.

Sustained load behaviour

Under continuous heavy use such as video rendering or large compiles, the 46 Wh capacity provides a consistent runtime before recharge is needed. Voltage remains stable across the discharge curve thanks to the polymer cell design. The battery is engineered to maintain performance over repeated full cycles without sudden capacity drops.

Highlights

  • Li-polymer chemistry delivers stable 11.1V output
  • 46Wh capacity supports extended mobile work sessions
  • 4000mAh rating provides reliable all-day power
  • Direct replacement for SB03XL and HSTNN part numbers
  • Compatible with EliteBook 720, 725, 820 and 825 G1/G2

Specifications

TypeBattery
Battery TypeLaptop Batteries

Questions about this item

How do I install the SB03XL battery in my HP EliteBook 820 G2, and what step do people often miss?

Power off the laptop, unplug the AC adapter, slide the release latch, swap the pack, then press the new battery until the latch clicks — many forget to reconnect the AC adapter for the first full charge.

What maintenance will the 46Wh Li-polymer pack need later?

No scheduled maintenance is required; keep the contacts clean, avoid storing at full or zero charge, and replace the pack when runtime no longer meets your needs.

What limit appears first during sustained use of the 11.1V 4000mAh battery?

The 46Wh capacity sets the runtime ceiling; under continuous load the pack will deplete before any thermal or voltage limit is reached.

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