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Rectangular black laptop battery with label showing part numbers

PowerWarehouse

PowerWarehouse 1FN06AA laptop battery 3 cell 11.55v 4245mAh

SKU CH-DJTY-1EWX0

Three-cell lithium-ion replacement battery rated at 11.55 V and 4245 mAh for EliteBook 745 G4, 755 G4, 840 G4, 850 G4, ZBook 14U G4, ZBook 15U G4 and MT43 Mobile Thin Client

  • CompatibilityELITEBOOK 745 G4, ELITEBOOK 755 G4, ELITEBOOK 840 G4, ELITEB
  • Battery Type3 Cell Lithium-Ion
  • Replaces OEM part numbers 1FN06AA and TA03XL
  • 3-cell lithium-ion design rated at 11.55 V and 4245 mAh
  • Compatible with EliteBook 745 G4, 755 G4 and 840 G4
  • Works with ZBook 14U G4 and 15U G4 mobile workstations
  • Supports MT43 Mobile Thin Client and EliteBook 850 G4

Compatible Laptop Battery

This replacement battery fits EliteBook 745 G4, 755 G4, 840 G4, 850 G4, MT43 Mobile Thin Client, ZBook 14U G4 and ZBook 15U G4. It replaces OEM part numbers 1FN06AA, TA03XL, 854047-1C1, 854108-850 and TA03051XL-PL. Buyers with other laptop models cannot use this pack.

Three Cell Lithium Ion Chemistry

The unit contains three lithium-ion cells rated at 11.55 volts and 4245 milliampere-hours. This fixed capacity limits runtime compared with higher-cell-count batteries. Users needing longer unplugged sessions should verify their chassis accepts only this form factor.

Voltage And Capacity Match

The 11.55 volt, 4245 milliampere-hour rating is the single specification that decides fit. A different voltage or capacity will not work in the listed EliteBook, ZBook and MT43 systems. Confirm the original battery label matches these figures before ordering.

Highlights

  • Replaces OEM part numbers 1FN06AA and TA03XL
  • 3-cell lithium-ion design rated at 11.55 V and 4245 mAh
  • Compatible with EliteBook 745 G4, 755 G4 and 840 G4
  • Works with ZBook 14U G4 and 15U G4 mobile workstations
  • Supports MT43 Mobile Thin Client and EliteBook 850 G4

Specifications

Part Number1FN06AA, TA03XL, 854047-1C1, 854108-850, TA03051XL-PL
CompatibilityELITEBOOK 745 G4, ELITEBOOK 755 G4, ELITEBOOK 840 G4, ELITEBOOK 850 G4, MT43 MOBILE THIN CLIENT, ZBOOK 14U G4, ZBOOK 15U G4
Battery Type3 Cell Lithium-Ion

Questions about this item

Which battery version fits my EliteBook 840 G4 or ZBook 14U G4?

This 3-cell lithium-ion pack replaces part numbers 1FN06AA, TA03XL, 854047-1C1, 854108-850 and TA03051XL-PL across EliteBook 745 G4, 755 G4, 840 G4, 850 G4, MT43 Mobile Thin Client, ZBook 14U G4 and ZBook 15U G4.

What does the 11.55 V and 4245 mAh rating mean for daily runtime?

The pack delivers 11.55 volts at 4245 milliampere-hours, matching the original specification so the laptop’s power management sees the same voltage curve and reports capacity correctly.

Does the battery use the standard HP connector and charging protocol for these EliteBook and ZBook models?

Yes, it is built to the OEM pin-out and charge logic for the listed part numbers, so the laptop charges and reports battery health through its normal BIOS interface.

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