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New Genuine Dell K5XWW Battery Replacement for Latitude 5289 2‑in‑1, E5289 2‑in‑1, 7389 2‑in‑1 Laptop
New Genuine Dell K5XWW Battery Replacement for Latitude 5289 2‑in‑1, E5289 2‑in‑1, 7389 2‑in‑1 Laptop
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Genuine K5XWW Battery for Dell Latitude 5289 / E5289 / 7389 2-in-1 – Restore Your Convertible’s All‑Day Flexibility
Exact replacement for Dell part number: K5XWW. Compatible with Latitude 5289 2-in-1, E5289 2-in-1, and Latitude 7389 2-in-1.
You bought a Latitude 2-in-1 for a reason: laptop power when you need it, tablet convenience when you don’t. But when the original battery starts to fade, that versatility disappears. You’re stuck near an outlet, and flipping to tablet mode just means a dead screen sooner.
Dell’s original K5XWW battery gave you 6–8 hours of real work when new. After 2–3 years, you’re lucky to get 3–4. You don’t need to pay Dell’s $90+ price for a replacement. And you definitely don’t want a $25 generic that might swell, trigger BIOS errors, or fail within months.
This genuine-spec K5XWW battery delivers OEM performance and safety – without the markup.
Quick Specs – What You’re Getting
| Specification | Value |
|---|---|
| Part Number | K5XWW |
| Compatible Models | Dell Latitude 5289 2-in-1, E5289 2-in-1, Latitude 7389 2-in-1 |
| Replace Part Number | 71TG4 071TG4 K5XWW X49C1 0X49C1 |
| Compatible Models |
For Dell Latitude 5289 2-In-1 Series, For Dell Latitude E5289 2-In-1 Series, For Dell Latitude 7389 2-in-1 Series, For Dell Latitude 7390 2-in-1 Series,(NOT Compatible with For Dell Latitude 7390) For Dell Latitude L3180 Series. |
| Typical Capacity | 60 Wh (watt‑hours, depending on configuration) |
| Voltage | 7.6 V nominal |
| Cells | 4‑cell (high‑density) |
| Chemistry | Lithium‑ion |
| Safety Features | Over‑charge, over‑discharge, short‑circuit protection, temperature monitoring |
A healthy K5XWW battery restores your 2-in-1 to its original runtime: 6–8 hours of typical office work (email, web, Office) and 4–5 hours under heavier loads (video calls, note‑taking in tablet mode).
OEM vs. Genuine‑Spec vs. Cheap Generic – What’s Actually Different?
Not every battery that fits your Latitude 2-in-1 is safe or reliable. Here’s how the three options compare.
| Factor | OEM (Dell) | Our Genuine‑Spec (K5XWW) | Cheap Generic |
|---|---|---|---|
| Cell Quality | Original LG / Samsung / Murata | Same OEM‑grade cells | Unknown, often recycled or low‑grade |
| True Capacity | 42–46Wh | Same as OEM | Often 25–35Wh (overstated) |
| Protection Circuit | Full PCM with temp sensor | Full PCM | Minimal – risk of swelling or fire |
| BIOS Communication | Accurate fuel gauge | Accurate – Windows shows correct % | May show wrong % or “battery not detected” |
| Physical Fit | Perfect | Perfect, same mold | Loose or too tight; weak connector |
| Charging Behavior | Supports Dell ExpressCharge | Supports ExpressCharge | Slow, overheats, or stops early |
| Longevity | 400–500 cycles | 400–500 cycles | Often fails within 6–12 months |
| Price | $80–110 | $45–65 | $20–30 |
| Warranty | 1 year | 12 months | 30 days or none |
Important for 2-in-1 users
Your Latitude’s hinge and touchscreen are sensitive to heat and swelling. A cheap generic battery can puff up, cracking the display or damaging the hinge mechanism. Our genuine‑spec battery uses the same safety circuits as Dell’s original – no surprises.
3 Signs Your Latitude 2-in-1 Needs a New K5XWW Battery
-
Shuts down at 20–30% – You unplug the charger, and within minutes the screen goes black, even though Windows said you had plenty left.
-
Erratic percentage jumps – Drops from 60% to 5% instantly, or stays at 99% for an hour then dies.
-
Physical swelling – The touchpad becomes hard to click, the bottom case bulges, or the laptop no longer sits flat. Replace immediately – a swollen battery can crack the display when folded into tablet mode.
If your 2-in-1 is more than 2–3 years old and showing any of these signs, replace the battery now. It’s cheaper than buying a new convertible.
Why Choose Our Genuine‑Spec K5XWW Battery?
-
Fresh cells – Manufactured within the last 6 months. Date printed on label. No degraded shelf inventory.
-
Exact fit – Same dimensions and connector as Dell original. No modifications needed.
-
Dell ExpressCharge compatible – Charges to 80% in about 1 hour with a genuine Dell adapter.
-
Full safety certification – CE, RoHS, UN38.3 (air transport safe).
-
12‑month warranty – If it fails within 12 months, we send a free replacement.
You don’t need to overpay Dell. But you also shouldn’t trust a no‑name battery that might ruin your 2-in-1. Our genuine‑spec K5XWW gives you OEM quality at a fair price.
Frequently Asked Questions (FAQ)
Q: Will this battery work with my Dell Latitude 5289, E5289, or 7389 2-in-1?
Yes. K5XWW is the official replacement battery for all three models. Check your current battery label – if it says K5XWW, this is the direct replacement.
Q: Can I install this battery myself?
Yes, but it requires opening the laptop. These models have a removable bottom cover (Torx or Phillips screws). The battery is held by a few screws and a cable connector. If you’re comfortable with basic repair, follow an iFixit or YouTube guide. If not, any local repair shop can do it in 15 minutes. We include a screwdriver and spudger with every battery.
Q: How long does a full charge last after replacement?
6–8 hours of typical office work (email, web, Office). Heavy tasks (video calls, tablet mode note‑taking) reduce to 4–5 hours. You’ll get back to the original runtime when the laptop was new.
Q: Does this battery support Dell ExpressCharge?
Yes. When used with a genuine Dell 45W or 65W USB‑C adapter, it will charge to about 80% in one hour. Enable ExpressCharge in Dell Power Manager.
Q: Is this battery safe for air travel?
Yes. At under 50Wh, it’s well under the FAA 100Wh limit for carry‑on luggage. Always keep spare batteries in carry‑on, never checked, and protect terminals from shorting (use original packaging or tape).
Q: What if my laptop doesn’t recognize the battery?
First, plug in the charger and let it charge for 2 hours. Then restart. If still not recognized, check that the cable is fully seated. In rare cases, a BIOS update (available from Dell Support) resets the battery controller. If none works, contact us for a replacement under warranty.
Q: Do you offer discounts for multiple batteries?
Yes. For orders of 5+ batteries, contact us for a quote. We work with IT departments and repair centers.
Ready to Bring Your Latitude 2-in-1 Back to Full Flexibility?
Don’t let a dead or swollen battery turn your convertible into a desk‑bound machine. This genuine‑spec K5XWW replacement restores original battery life and safety – at a price that makes replacing an aging battery an easy decision.
Click ‘Add to Cart’ – and get back to working, presenting, and creating in any mode, anywhere.
Genuine K5XWW Battery for Dell Latitude 5289 / E5289 / 7389 2-in-1 – Restore Your Convertible’s All‑Day Flexibility
Exact replacement for Dell part number: K5XWW. Compatible with Latitude 5289 2-in-1, E5289 2-in-1, and Latitude 7389 2-in-1.
You bought a Latitude 2-in-1 for a reason: laptop power when you need it, tablet convenience when you don’t. But when the original battery starts to fade, that versatility disappears. You’re stuck near an outlet, and flipping to tablet mode just means a dead screen sooner.
Dell’s original K5XWW battery gave you 6–8 hours of real work when new. After 2–3 years, you’re lucky to get 3–4. You don’t need to pay Dell’s $90+ price for a replacement. And you definitely don’t want a $25 generic that might swell, trigger BIOS errors, or fail within months.
This genuine-spec K5XWW battery delivers OEM performance and safety – without the markup.
Quick Specs – What You’re Getting
| Specification | Value |
|---|---|
| Part Number | K5XWW |
| Compatible Models | Dell Latitude 5289 2-in-1, E5289 2-in-1, Latitude 7389 2-in-1 |
| Replace Part Number | 71TG4 071TG4 K5XWW X49C1 0X49C1 |
| Compatible Models |
For Dell Latitude 5289 2-In-1 Series, For Dell Latitude E5289 2-In-1 Series, For Dell Latitude 7389 2-in-1 Series, For Dell Latitude 7390 2-in-1 Series,(NOT Compatible with For Dell Latitude 7390) For Dell Latitude L3180 Series. |
| Typical Capacity | 60 Wh (watt‑hours, depending on configuration) |
| Voltage | 7.6 V nominal |
| Cells | 4‑cell (high‑density) |
| Chemistry | Lithium‑ion |
| Safety Features | Over‑charge, over‑discharge, short‑circuit protection, temperature monitoring |
A healthy K5XWW battery restores your 2-in-1 to its original runtime: 6–8 hours of typical office work (email, web, Office) and 4–5 hours under heavier loads (video calls, note‑taking in tablet mode).
OEM vs. Genuine‑Spec vs. Cheap Generic – What’s Actually Different?
Not every battery that fits your Latitude 2-in-1 is safe or reliable. Here’s how the three options compare.
| Factor | OEM (Dell) | Our Genuine‑Spec (K5XWW) | Cheap Generic |
|---|---|---|---|
| Cell Quality | Original LG / Samsung / Murata | Same OEM‑grade cells | Unknown, often recycled or low‑grade |
| True Capacity | 42–46Wh | Same as OEM | Often 25–35Wh (overstated) |
| Protection Circuit | Full PCM with temp sensor | Full PCM | Minimal – risk of swelling or fire |
| BIOS Communication | Accurate fuel gauge | Accurate – Windows shows correct % | May show wrong % or “battery not detected” |
| Physical Fit | Perfect | Perfect, same mold | Loose or too tight; weak connector |
| Charging Behavior | Supports Dell ExpressCharge | Supports ExpressCharge | Slow, overheats, or stops early |
| Longevity | 400–500 cycles | 400–500 cycles | Often fails within 6–12 months |
| Price | $80–110 | $45–65 | $20–30 |
| Warranty | 1 year | 12 months | 30 days or none |
Important for 2-in-1 users
Your Latitude’s hinge and touchscreen are sensitive to heat and swelling. A cheap generic battery can puff up, cracking the display or damaging the hinge mechanism. Our genuine‑spec battery uses the same safety circuits as Dell’s original – no surprises.
3 Signs Your Latitude 2-in-1 Needs a New K5XWW Battery
-
Shuts down at 20–30% – You unplug the charger, and within minutes the screen goes black, even though Windows said you had plenty left.
-
Erratic percentage jumps – Drops from 60% to 5% instantly, or stays at 99% for an hour then dies.
-
Physical swelling – The touchpad becomes hard to click, the bottom case bulges, or the laptop no longer sits flat. Replace immediately – a swollen battery can crack the display when folded into tablet mode.
If your 2-in-1 is more than 2–3 years old and showing any of these signs, replace the battery now. It’s cheaper than buying a new convertible.
Why Choose Our Genuine‑Spec K5XWW Battery?
-
Fresh cells – Manufactured within the last 6 months. Date printed on label. No degraded shelf inventory.
-
Exact fit – Same dimensions and connector as Dell original. No modifications needed.
-
Dell ExpressCharge compatible – Charges to 80% in about 1 hour with a genuine Dell adapter.
-
Full safety certification – CE, RoHS, UN38.3 (air transport safe).
-
12‑month warranty – If it fails within 12 months, we send a free replacement.
You don’t need to overpay Dell. But you also shouldn’t trust a no‑name battery that might ruin your 2-in-1. Our genuine‑spec K5XWW gives you OEM quality at a fair price.
Frequently Asked Questions (FAQ)
Q: Will this battery work with my Dell Latitude 5289, E5289, or 7389 2-in-1?
Yes. K5XWW is the official replacement battery for all three models. Check your current battery label – if it says K5XWW, this is the direct replacement.
Q: Can I install this battery myself?
Yes, but it requires opening the laptop. These models have a removable bottom cover (Torx or Phillips screws). The battery is held by a few screws and a cable connector. If you’re comfortable with basic repair, follow an iFixit or YouTube guide. If not, any local repair shop can do it in 15 minutes. We include a screwdriver and spudger with every battery.
Q: How long does a full charge last after replacement?
6–8 hours of typical office work (email, web, Office). Heavy tasks (video calls, tablet mode note‑taking) reduce to 4–5 hours. You’ll get back to the original runtime when the laptop was new.
Q: Does this battery support Dell ExpressCharge?
Yes. When used with a genuine Dell 45W or 65W USB‑C adapter, it will charge to about 80% in one hour. Enable ExpressCharge in Dell Power Manager.
Q: Is this battery safe for air travel?
Yes. At under 50Wh, it’s well under the FAA 100Wh limit for carry‑on luggage. Always keep spare batteries in carry‑on, never checked, and protect terminals from shorting (use original packaging or tape).
Q: What if my laptop doesn’t recognize the battery?
First, plug in the charger and let it charge for 2 hours. Then restart. If still not recognized, check that the cable is fully seated. In rare cases, a BIOS update (available from Dell Support) resets the battery controller. If none works, contact us for a replacement under warranty.
Q: Do you offer discounts for multiple batteries?
Yes. For orders of 5+ batteries, contact us for a quote. We work with IT departments and repair centers.
Ready to Bring Your Latitude 2-in-1 Back to Full Flexibility?
Don’t let a dead or swollen battery turn your convertible into a desk‑bound machine. This genuine‑spec K5XWW replacement restores original battery life and safety – at a price that makes replacing an aging battery an easy decision.
Click ‘Add to Cart’ – and get back to working, presenting, and creating in any mode, anywhere.
| Battery Capacity | 60WH |
| Voltage | 7.6V |
| Model No | K5XWW |
| Warranty | 12 Months |
🔋 Lithium-Ion Battery Conditioning
For optimal electrochemical performance, new lithium-ion batteries should undergo 2–3 complete charge and discharge cycles before reaching full capacity.
This stabilization phase allows the internal cell chemistry to achieve balanced ion distribution, ensuring maximum runtime, stable voltage output, and extended cycle life.
After this initial conditioning period, no further full discharge cycles are required.
🛡 Premium Warranty Protection
- 12-Month Limited Manufacturer Warranty
- 60-Day No-Hassle Money Back Guarantee
- Up to 60 Days Refund Window (Policy Based)
- Replacement for defective or misrepresented items
- Dedicated customer service response within 24 hours
🚚 Professional Shipping Standards
- Orders processed within 24 business hours (excluding weekends & holidays)
- Real-time tracking number provided upon dispatch
- Transit time varies by region and logistics carrier
- Please verify your shipping address before order confirmation
- Address changes are not possible once shipment is dispatched
📌 Product-Specific Notice
📩 Customer Care Commitment
We are committed to delivering professional-grade battery solutions and responsive after-sales service. If you experience any issues, please contact our support team before leaving feedback.
✓ Safety & Quality Assurance
- Certified to CE, RoHS, UN38.3 international safety standards.
- Built-in protection against overcharging, overheating, and short circuits.
- Shipped in compliance with IATA regulations for lithium batteries.
- Compatible with OEM chargers. No firmware modification required.
Questions about compatibility? Contact us with your device model number before ordering.
Cao Chuanping
Power Systems Consultant · 8+ years in replacement battery sourcing & evaluation · View profile →
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