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Dell Latitude 7350 11.1V Li-Polymer Replacement Battery 271J9

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From $69.99 USD $86.99
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Fits Dell Latitude 7350 and replaces OEM part number 271J9.
11.1V 2700mAh pack delivers 29.97Wh — sufficient for this ultrabook's business-day unplugged use.
Connector seats flat against the battery door; locking tab clips down and locks flush.
We ran load cycles on the fuel gauge IC — BMS accepted charge without shutdown faults.
After install, run one full discharge to hibernation cutoff then charge uninterrupted to 100% to reset the BIOS battery learn cycle and clear inaccurate health warnings that appear after cell swap.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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Battery Care Tips

🔹 Getting Started

Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.

🔹 Keep It Healthy

Avoid letting your battery completely drain or staying plugged in constantly. Both extremes wear it out faster. Store the battery in a cool, dry place when you're not using it, since heat damages batteries quickly.

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🔹 Most orders ship the next day, and we use FedEx, UPS, Purolator and other carriers to get them to you. Lithium batteries have to ship by ground only, not air or USPS. Make sure your address is right before you order, because if we have to send it back, you pay for shipping again.

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🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.

Voltage

11.1V

Amp

2700mAh

Dell Latitude 7350 — 11.1V Li-Polymer Replacement Battery (271J9)

This 11.1V, 2700mAh Li-Polymer cell replaces the original battery in the Dell Latitude 7350 and Latitude 13 7000 series ultrabooks. It fits the slim 4.60mm battery bay and matches the original connector and BMS handshake. Use the OEM part numbers 271J9, YX81V, GWV47, MN791, and 3WKT0 to confirm fitment before ordering.

  • Latitude 7350 and 13 7000 series fitment: These models share the same 11.1V power rail, slim form factor, and Dell BMS communication protocol. The same cell works across CAL001 and CAL007 chassis variants because the connector pinout and charge handshake are identical across the Latitude 13 7000 production run.
  • Bench tested on actual hardware: We cycled this cell on a Latitude 7350 and monitored BMS communication at each charge stage. The protection circuit held cutoff at spec voltage under both idle and full CPU-plus-display load conditions.
  • BIOS learn cycle after install: After fitting this cell, run the laptop down to hibernate-cutoff on battery alone, then charge uninterrupted to 100% without using the machine. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap.

Why the Latitude 7350 shuts down at 20–30% after a battery swap

The fuel gauge IC on the Latitude 7350 stores charge-curve data from the old cell in its EEPROM. When a new cell goes in, that stored curve no longer matches actual cell chemistry, so the IC miscalculates the remaining charge. Under full CPU and display load the new cell hits a voltage cliff earlier than the IC expects, and the laptop cuts power before the gauge reaches zero. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% gives the IC enough data to recalibrate against the new cell.

BIOS reporting 0% or "unknown battery" immediately after installation

This happens when the EEPROM on the replacement cell carries different initialisation data than Dell's firmware expects on first handshake. The BIOS flags the battery as unknown rather than displaying a charge percentage. Plug in the AC adapter and leave the system powered on for a full charge cycle without interruption — the BMS re-establishes communication and the BIOS registers the cell correctly. If the status still shows unknown after one full charge, reseat the battery connector and repeat.

Compatible Models

Latitude 7350 Latitude 13 7000 Latitude 13 7000(CAL001LATI735013480) Latitude 13 7000(CAL007LATI735015880) Latitude 13 7350 Latitude 13 7000(CAL005LATI735015880) Latitude 13 7000(CAL004LATI735015480) Latitude 13 7000(CAL002LATI735013480) Latitude 13 7000(CAL006LATI735015880) Latitude 13 7000(CAL003LATI735013480)

Replaces Part Numbers

271J9 YX81V GWV47 0GWV47 MN791 0MN791 3WKT0 0271J9

Technical Specifications

Voltage11.1V
Amp Hours2700mAh
Capacity2700mAh
Rate29.97Wh
Net Weight149g /5.26 oz
Gross Weight289g /10.19 oz
Approximate Weight289g /10.19 oz
Dimension 179.50 x 111.20 x 4.60 mm

Product Highlights

  • Brand: Dell
  • Manufacturer: CS
  • Series: Standard
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Latitude 7350 says the new battery has poor health the moment I turned it on — is the cell already dead?

No — this is an EEPROM mismatch, not a bad cell. The BIOS compares incoming battery data against the stored health profile from the old cell, and when the numbers don't align it flags poor health immediately. Run one full discharge to hibernate-cutoff, then charge uninterrupted to 100%. That resets the BIOS battery learn cycle and clears the false health warning.

The fuel gauge on my Latitude 7350 jumps from 60% to 15% with no warning — why is the percentage so wrong?

The fuel gauge IC calibrates itself against the charge curve of the cell it was paired with. After a swap, the stored curve no longer matches the new cell's chemistry, so percentage readings are unreliable until the IC recalibrates. Run two full discharge-to-hibernate and uninterrupted charge-to-100% cycles — the IC builds a new curve from real data and the gauge stabilises. After the second full cycle the reading should track within a few percent of actual charge.

Dell Command | Power Manager is capping my new battery charge at 80% — is the replacement cell faulty?

The cell is not faulty. Dell's BIOS-level charge limit feature, configurable in Dell Command | Power Manager and BIOS Setup, caps charging at 80% when "Primarily AC" or a custom threshold is active. Open Dell Command | Power Manager, go to Battery Settings, and set the charge mode to "Adaptive" or "Standard" to allow charging to 100%. This is a firmware setting, not a battery fault.

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