71TG4 Laptop Battery Compatible with Dell Latitude 5289 7389 7390

In this review we look at the 71TG4 replacement battery for Dell Latitude 5289, 7389 and 7390 2-in-1 notebooks and whether it is a practical swap for users needing a direct, cost-effective replacement. The bottom line: this battery delivers a straightforward fit and reliable power output for devices that require an 11.4V, 45Wh pack, making it a solid choice for users who prioritize compatibility, easy installation and safety certifications over premium brand labeling.

Key Features

• Battery type: Li-ion design provides a familiar rechargeable chemistry that balances weight and energy density for everyday laptop use.
• Voltage and capacity: 11.4V and 45Wh (3745mAh) give a predictable runtime that matches the original equipment expectations for supported Latitude 2-in-1 models.
• Compatibility: Ships with compatible part numbers 71TG4, 071TG4, K5XWW, X49C1 and 0X49C1 so it fits designated Dell Latitude 5289, 7389 and 7390 2-in-1 notebooks without modification.
• Safety certification: CE and FCC certifications indicate the pack meets common electrical and environmental safety guidelines for consumer devices.
• Warranty service: OUWEE provides a 30-day refund window and 12 months replacement coverage, which simplifies post-purchase support if a fault appears.

Who It's For

This battery is aimed at owners of Dell Latitude 5289, 7389 and 7390 2-in-1 notebooks who need a like-for-like replacement without paying OEM premiums. It is best for users who value correct fit, straightforward installation and documented safety certification.

It is not for people who need a higher-capacity or extended-life cell or those with other Latitude submodels outside the listed compatibility; the listing explicitly notes it does not fit the Latitude 7390 Series (non 2-in-1) models, so double-check your model before buying.

Pros & Cons

Pros

• Good fit and installation: customers report the battery installs easily and matches the original connector and shape.
• Certifications: CE and FCC safety certifications offer extra reassurance versus uncertified packs.
• Value and quality: buyers praise the build quality and see it as a cost-effective replacement that functions well.

Cons

• Mixed battery life: some users note battery runtime varies and may not exceed OEM longevity expectations, so performance can be mixed.

Specifications

Battery type	Li-ion
Voltage	11.4V
Capacity	45Wh / 3745mAh
Compatible part numbers	71TG4, 071TG4, K5XWW, X49C1, 0X49C1
Replacement for	Dell Latitude 5289, 7389, 7390 2-in-1 notebooks
Certifications	CE, FCC
Warranty	30 days refund, 12 months replacement

Our Verdict

The 71TG4 battery is a practical, well-matched replacement for the specified Dell Latitude 2-in-1 models, offering the expected 11.4V, 45Wh capacity and compliant safety certifications at a reasonable price. Buy this if you need a reliable, drop-in swap with warranty support; look elsewhere if you require extended runtime beyond the stated capacity or have a different Latitude submodel.

Frequently Asked Questions

Will this battery fit my Dell Latitude?
It fits Dell Latitude 5289, 7389 and 7390 2-in-1 models that use part numbers 71TG4, 071TG4, K5XWW, X49C1 or 0X49C1; confirm your exact model before purchase.

Is the battery certified for safety?
Yes, OUWEE lists CE and FCC certifications for these batteries, indicating they meet common electrical and environmental safety guidelines.

What warranty and support are included?
OUWEE offers a 30-day refund policy and 12 months replacement coverage along with customer service to assist with any issues.