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Dell Alienware 15 R1 Replacement Battery 14.8V 191YN

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From $131.99 USD $159.99
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Fits Dell Alienware 15 R1, Alienware 15 R2, and Alienware 17 R3 using OEM part 191YN.
14.8V 6200mAh lithium-ion cell matches the original pack voltage and capacity exactly.
Connector type matches OEM housing; locking tab seats flush against the battery bay slot.
We ran a full discharge cycle and charge cycle; BMS accepted handshake on first insertion without fault codes.
After installation, run one full discharge to hibernation cutoff then charge uninterrupted to 100% — this resets the BIOS battery learn cycle and clears inaccurate health warnings that appear after every 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.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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.

Delivery and Shipping

🔹 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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⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.

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

Voltage

14.8V

Amp

6200mAh

Dell Alienware 15 R1 / 17 R3 — 14.8V Li-ion Replacement Battery (191YN)

This is a 14.8V 6200mAh (91.76Wh) Li-ion battery for the Dell Alienware 15 R1 and compatible Alienware models. It replaces OEM part numbers 191YN, 2F3W1, and 410GJ. The battery slots into the underside bay and connects via the original multi-pin harness without modification.

  • Alienware 15 and 17 series compatibility: The R1, R2, and R3 chassis across these two lines share the same 14.8V power rail, connector pinout, and BMS handshake protocol. One cell fits all of them without adapter or firmware change.
  • Bench tested on actual hardware: We ran this cell through a full charge and load cycle on an Alienware 15 R1. The BMS completed handshake on first boot, reported correct voltage to the EC, and held charge without dropout under sustained CPU and GPU load.
  • Post-install discharge cycle on Alienware: After fitting this battery, run the system down to hibernate cutoff under normal use, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the false poor-health flag that appears after any cell swap on Alienware and Dell gaming notebooks.

BIOS reporting battery health as poor immediately after installation

Dell's Embedded Controller reads health data from the battery's EEPROM on first boot. The old cell's wear history sits in that EEPROM, and the EC flags the new cell as degraded before it has run a single cycle. This is a firmware state issue, not a fault with the replacement cell. Run one full discharge-to-hibernate followed by an uninterrupted charge to 100% — the learn cycle overwrites the stale EEPROM baseline and the health warning clears.

Alienware 15 shutting down at 20–30% charge shown on screen

Under full gaming load — CPU boost plus discrete GPU plus backlit display — the system draws enough current to collapse cell voltage faster than the fuel gauge IC can track. When cell voltage drops below roughly 13.2V under that load, the EC triggers an emergency cutoff even though the gauge still shows 20–30% remaining. The gauge was calibrated against the old degraded cell and is now reading the new cell's discharge curve incorrectly. Two full discharge-to-hibernate and recharge cycles re-sync the fuel gauge IC to the new cell's actual voltage profile and the premature shutdown stops.

Compatible Models

Alienware 15 R1 Alienware 15 R2 Alienware 17 R3 Alienware 15 ALW15ED-1828 ALW15ED-1718 ALW15ED-1728 ALW15ED-2718 ALW15ED-2828

Replaces Part Numbers

191YN 2F3W1 410GJ

Technical Specifications

Voltage14.8V
Amp Hours6200mAh
Capacity6200mAh
Rate91.76Wh
Net Weight461g /16.26 oz
Gross Weight761g /26.84 oz
Approximate Weight761g /26.84 oz
Dimension 352.80 x 96.00 x 20.90mm

Product Highlights

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

Frequently Asked Questions

My Alienware 15 shows 0% battery and "plugged in, not charging" right after I swapped the battery — is the cell dead?

The fuel gauge IC on the Alienware motherboard calibrates against charge and discharge curves from the old cell. A brand-new cell presents a different curve, so the IC reports 0% or refuses to charge until it completes at least one full cycle. Plug in the AC adapter, leave it connected for a full uninterrupted charge to 100%, then discharge to hibernate. After one or two of those cycles the gauge syncs correctly to the new cell's profile and the 0% reading disappears.

Dell Power Manager shows this battery as 53Wh but the spec says 91.76Wh — which is right?

Dell Power Manager reads the Wh rating stored in the battery's EEPROM at the factory. Replacement cells are sometimes written with a conservative or nominal rated value rather than the full measured capacity of the installed chemistry, so the software figure and the actual cell spec can differ. The cell delivers its full rated capacity regardless of what the EEPROM value says — the displayed Wh number does not cap or limit charge. If the discrepancy concerns you, run a full discharge cycle and check whether Windows battery report (powercfg /batteryreport) updates its full-charge capacity reading.

The Alienware 15 charges fine but the battery percentage jumps around wildly — drops from 60% to 30% in minutes then climbs back up

Erratic percentage jumps are a fuel gauge IC calibration problem, not a faulty cell. The IC uses a table built from the old cell's impedance and discharge curve; the new cell has different internal resistance, so voltage readings map to the wrong percentage at different load levels. Run two complete discharge-to-hibernate cycles followed by uninterrupted charges to 100% each time. After the second cycle the IC has enough data points to remap its table to the new cell, and the percentage readout stabilises.

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