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
- Product 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.
How it compares
Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.
- Price $40.99
- Pricier than about 72% of the 27,790 comparable items (median $30.99).
Specifications
| Product | |
|---|---|
| Brand name | DELL |
| Product 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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