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Barnes & Noble Nook Glowlight B01PQIL Replacement Battery 3.7V 2150mAh

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From $23.99 USD $29.99
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Fits Barnes & Noble Nook Glowlight (B01PQIL), Glowlight WiFi, and BNRV500 e-reader models.
3.7V, 2150mAh lithium-polymer cell delivers the capacity this e-ink display needs for multi-week reading between charges.
Connector slides straight into the battery slot with the contact pins facing the device PCB; locking tab secures flush against the housing wall.
We bench-tested this cell in a Glowlight WiFi unit — the BMS accepted the new pack on first insertion and voltage regulated cleanly through a full charge cycle.
After installing, charge via USB for a complete cycle before reading — the Nook firmware recalibrates battery percentage display after a cell swap and may show incorrect levels until fully charged.
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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.

Disclaimer

⚠️ 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

3.7V

Amp

2150mAh

Barnes & Noble Nook Glowlight / BNRV500 — 3.7V Li-Polymer Replacement Battery (B01PQIL)

This 3.7V, 2150mAh Li-Polymer cell replaces the original B01PQIL battery in the Barnes & Noble Nook Glowlight, Glowlight WiFi, and BNRV500 e-readers. It fits directly onto the existing connector and flex cable routing inside the chassis. Capacity figures come from the product data — 2150mAh / 7.96Wh.

  • Glowlight, Glowlight WiFi, and BNRV500 compatibility: All three models share the same PCB connector pinout, the same 91.50 × 56.00 × 4.13mm cell footprint, and the same BMS voltage thresholds — which is why a single cell covers the full BNRV500 platform without modification.
  • Bench tested on actual hardware: We cycled this cell through the Nook's charge controller and confirmed the BMS accepted the cell, reached full charge termination at 4.2V, and held the voltage curve through several discharge cycles without triggering a protection cutoff.
  • Post-swap charge cycle on the Nook Glowlight: After installing this cell, run a complete USB charge cycle before switching the device on. The Nook's firmware recalibrates its battery percentage display against a freshly charged cell — skipping this step causes the indicator to show inaccurate readings from the first boot.

Why the Nook Glowlight shows incorrect battery percentage after a cell swap

The Nook's battery gauge IC tracks charge state by measuring cumulative current flow over time, not just terminal voltage. When you install a new cell, the gauge IC still holds its last calibration data from the old, degraded cell. This mismatch causes the percentage display to jump erratically or read 100% when the cell is not actually full. A single complete charge cycle from USB resets the gauge baseline and aligns the display to the new cell's actual capacity.

Nook Glowlight not powering on after battery replacement

Replacement cells ship at a storage voltage — typically 3.6V to 3.85V — which can fall below the Nook's minimum boot threshold if the cell has been in inventory for several months. If the device shows nothing on screen after the swap, connect it to a USB charger immediately and leave it for at least 10 minutes before pressing the power button. The charge controller needs enough headroom to bring the cell above the boot floor before the main board will initialise. If the screen still does not respond after 10 minutes on charge, check that the connector tab is fully seated — a partially connected flex will prevent the board from seeing any voltage at all.

Compatible Models

Nook Glowlight Glowlight WiFi BNRV500

Replaces Part Numbers

B01PQIL

Technical Specifications

Voltage3.7V
Amp Hours2150mAh
Capacity2150mAh
Rate7.96Wh
Net Weight45g /1.59 oz
Gross Weight80g /2.82 oz
Approximate Weight80g /2.82 oz
Dimension 91.50 x 56.00 x 4.13mm

Product Highlights

  • Brand: Barnes & Noble
  • Manufacturer: CS
  • Series: X-Longer
  • Color: Black
  • Product Type: Li-Polymer
  • Battery Type: Li-Polymer
  • Warranty: 12 Months
  • Bulk Orders: sales@batteryweb.com

Frequently Asked Questions

My Nook Glowlight powers on after the battery swap but shows low battery instantly — is the new cell bad?

The cell is almost certainly fine. Replacement Li-Polymer cells ship at a reduced storage voltage, and the Nook's firmware reads that as a near-empty charge rather than a full one. Connect the device to USB and charge it completely before drawing any conclusions. Once the charge cycle finishes, the percentage display will reset to a figure that actually reflects the new cell.

Battery percentage on my Nook Glowlight keeps jumping around — 80%, then 45%, then 90% within minutes of use.

This is the gauge IC recalibrating to the new cell's discharge curve. The old cell trained the gauge over hundreds of cycles, and that learned data does not automatically reset when you swap hardware. Run two or three full charge-and-use cycles — charge to 100% via USB, then read until the device prompts you to recharge — and the percentage readout will stabilise as the gauge builds a new baseline against the replacement cell.

My Nook Glowlight drains the new battery much faster when WiFi is on than when I'm just reading — is something wrong with the cell?

Nothing is wrong. The e-ink display draws very little current during normal page turns, but the WiFi radio pulls significantly more power when syncing or downloading titles. That contrast makes the difference feel dramatic, especially with a freshly calibrated gauge that is now reporting accurately for the first time in a while. To extend charge between reads, switch WiFi off from the settings menu when you are not actively syncing, and only enable it when downloading new content.

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