DELL
DELL Latitude 7390 7389 5289 2-in-1 3-Cell 45Wh Laptop Battery 71TG4
Genuine Dell OEM 3-cell 45 Wh lithium-ion battery rated at 11.4 V for Latitude 7390, 7389 and 5289 2-in-1 systems
- Typelaptop-computer-batteries
- Genuine Dell OEM part ensures exact fit
- 45Wh capacity powers compatible Latitude 2-in-1 models
- 4V rating matches original system requirements
- 3-cell Li-Ion technology provides reliable operation
- Compatible with Latitude 5289, 7389 and 7390 2-in-1 laptops
Genuine Dell OEM 45 Wh replacement battery
This is a genuine Dell OEM lithium-ion battery rated at 11.4 V and 45 Wh. It uses a three-cell design and carries part number 71TG4. The unit is supplied new and matches the original specification for the listed Latitude 2-in-1 models.
Direct fit for Latitude 7390 7389 5289 2-in-1
The battery is compatible with the Latitude 7390 2-in-1, Latitude 7389 2-in-1 and Latitude 5289 2-in-1. It replaces Dell part numbers X49C1, 2T9GV and CFX97. No additional cabling or adapter is required for installation in these systems.
Three-cell Li-Ion runs cool at 11.4 V
The three-cell lithium-ion chemistry delivers the rated 45 Wh capacity at 11.4 V with low heat output during normal operation. Power draw stays within the original thermal envelope, so fan behaviour and acoustics remain unchanged from the factory configuration.
Highlights
- Genuine Dell OEM part ensures exact fit
- 45Wh capacity powers compatible Latitude 2-in-1 models
- 4V rating matches original system requirements
- 3-cell Li-Ion technology provides reliable operation
- Compatible with Latitude 5289, 7389 and 7390 2-in-1 laptops
Specifications
| Brand | DELL |
|---|---|
| Type | laptop-computer-batteries |
Questions about this item
How long will the 45Wh capacity last before the battery needs recharging under sustained load?
The 45Wh rating sets the total energy available; actual runtime depends on the laptop's power draw, screen brightness and workload, so heavy use will deplete it faster than light tasks.
Does the 3-cell Li-Ion design run hotter or louder than larger batteries during all-day operation?
The battery itself has no moving parts and produces no noise; heat output is determined by the laptop's charging circuit and workload, not by the cell count alone.
Which Dell Latitude models must I already own for this 71TG4 battery to fit and work?
It is compatible with Latitude 5289 2-in-1, Latitude 7389 2-in-1 and Latitude 7390 2-in-1 systems.
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