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Black rectangular laptop battery with label showing 11.4V 45Whr 3 Cell

Tryhi

Tryhi 71TG4 X49C1 11.4V 45Whr 3 Cell laptop battery

SKU CH-40DK-2T1BS

New 11.4 V 45 Whr lithium-ion pack fits Dell Latitude 5289, 7389 and 7390 2-in-1 models

  • ColorBlack
  • TypeBattery
  • CompatibilityDell Latitude 5289, Latitude 7389, Latitude 5289 2-in-1, Lat
  • Battery Type3 Cell Lithium-Ion
  • Battery Voltage11.4V
  • Battery Capacity3947mah
  • Direct replacement for Dell Latitude 5289, 7389 and 7390 2-in-1 models
  • 4V 45Whr 3-cell lithium-ion chemistry matches original specifications
  • 3947mAh capacity restores full runtime for compatible ultrabooks
  • CE, FCC and RoHS certifications confirm electrical safety compliance
  • New GreenTech battery tested for correct voltage, circuit protection and low self-discharge

Tryhi 71TG4 X49C1 replacement battery

The Tryhi 71TG4 X49C1 is a new 3-cell lithium-ion battery rated at 11.4 V and 45 Whr. It replaces Dell OEM part numbers 71TG4, X49C1, CFX97, 0X49C1, 0CFX97 and K5XWW. The unit is finished in black and is ready for installation in compatible Dell Latitude systems.

Suits Dell Latitude 5289.

This battery fits the Latitude 5289, Latitude 5289 2-in-1, Latitude 7389, Latitude 7389 2-in-1 and Latitude 7390 2-in-1. It is not for users of other Dell models or other brands, nor for anyone needing a different voltage or cell count.

11.4 V 45 Whr 3-cell specification

The decisive specification is the 11.4 V, 45 Whr, 3-cell lithium-ion design. Match this voltage, capacity and cell configuration to your original battery before purchase to ensure correct fit and operation.

Highlights

  • Direct replacement for Dell Latitude 5289, 7389 and 7390 2-in-1 models
  • 4V 45Whr 3-cell lithium-ion chemistry matches original specifications
  • 3947mAh capacity restores full runtime for compatible ultrabooks
  • CE, FCC and RoHS certifications confirm electrical safety compliance
  • New GreenTech battery tested for correct voltage, circuit protection and low self-discharge

Specifications

BrandGreenTech
Model71TG4, X49C1, CFX97, 0X49C1, 0CFX97, K5XWW
ColorBlack
TypeBattery
CompatibilityDell Latitude 5289, Latitude 7389, Latitude 5289 2-in-1, Latitude 7389 2-in-1, Latitude 7390 2-in-1
Battery Type3 Cell Lithium-Ion
Battery Voltage11.4V
Battery Capacity3947mah

Questions about this item

How long will the 45Whr capacity actually run a Dell Latitude 5289 under typical office work?

The 45Whr rating matches the original Dell specification, so expect similar runtime to the factory battery when new — roughly a full workday of light tasks like browsing and document editing.

Does the 11.4V output match the charging circuit in a Latitude 7389 2-in-1 without modification?

Yes, 11.4V is the exact voltage Dell specifies for these models, so the laptop's built-in charger regulates it normally with no hardware changes needed.

Will the 3-cell pack fit inside the Latitude 7390 2-in-1 chassis using the existing screws and latch?

The battery is built to the same 3-cell form factor as the OEM 71TG4 and X49C1 units, so it slides into the same bay and secures with the original hardware.

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