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Pandigital Novel 7 Replacement Battery 3.7V 2900mAh

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From $26.99 USD $33.99
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Fits Pandigital Novel 7 e-reader and PRD07T20WBL1 model; replaces OEM battery BP-S21-11/2740 LS.
3.7V lithium-polymer cell rated 2900mAh delivers the charge capacity original pack provided for full reading sessions.
Connector slides straight into the battery slot; orientation is keyed to prevent reversal during installation.
Bench testing confirmed the BMS accepted initial charge without cutoff; voltage curve tracked normal lithium-polymer discharge on the Novel 7 circuit.
After installation, charge fully via USB before first use — the Novel 7 firmware recalibrates battery percentage display after a cell swap and requires a complete cycle to sync accurately.
Delivery time

This product ships directly from our Manufacturer’s Warehouse and is usually delivered within 5 – 8 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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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

2900mAh

Pandigital Novel 7 / PRD07T20WBL1 — 3.7V Li-Polymer Replacement Battery (BP-S21-11/2740 LS)

This 3.7V, 2900mAh lithium-polymer cell is a direct replacement for the Pandigital Novel 7 e-reader (model PRD07T20WBL1). It fits the original battery bay using the same connector and matches the factory spec for voltage and capacity. OEM part number BP-S21-11/2740 LS.

  • Novel 7 and PRD07T20WBL1 compatibility: Both model designations share the same battery bay geometry, connector pinout, and 3.7V supply rail. The BMS expects the same charge curve, so the replacement cell communicates with the firmware's charge controller without modification.
  • Bench tested on actual hardware: We cycled this cell through charge and discharge on the Novel 7 platform. The BMS accepted the new cell without fault codes, and charge termination triggered correctly at 4.2V cutoff.
  • Firmware calibration after cell swap: The Novel 7's battery percentage display recalibrates to a new cell only after a complete charge cycle. Connect the device via USB immediately after installation and charge to 100% before first boot — skipping this step causes the firmware to report inaccurate percentages for several cycles.

Why the Novel 7 won't boot after a battery replacement

Li-polymer cells drop to storage voltage — typically 3.6–3.7V — during warehousing. The Novel 7's boot sequence requires a minimum voltage threshold before it will attempt to power on. If the cell ships at or below that threshold, the device appears completely dead even with a brand-new battery installed. Connect the USB charger and leave the device alone for 10 minutes before pressing the power button. The charge controller will pre-condition the cell and bring it above boot voltage.

Battery percentage jumping around in the first few sessions

The Novel 7 firmware stores capacity reference points from the previous cell. After a swap, those reference points no longer match the new cell's discharge curve, so the percentage indicator jumps — dropping suddenly or reading higher than actual. This corrects itself after two to three full charge-to-discharge cycles. Run the device from 100% down to the low-battery warning without interrupting the cycle, then charge fully each time. By the third cycle, percentage readings stabilise.

Compatible Models

Novel 7 PRD07T20WBL1

Replaces Part Numbers

BP-S21-11/2740 LS

Technical Specifications

Voltage3.7V
Amp Hours2900mAh
Capacity2900mAh
Rate10.73Wh
Net Weight54.1g /1.91 oz
Gross Weight89g /3.14 oz
Approximate Weight89g /3.14 oz
Dimension 122.28 x 58.33 x 3.34mm

Product Highlights

  • Brand: Pandigital
  • 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 Novel 7 shows a low battery warning the moment it powers on after fitting the new cell — is the replacement faulty?

The cell ships at storage voltage, which the Novel 7 firmware reads as critically low on first boot. Plug in the USB charger before doing anything else and let it charge uninterrupted to 100%. The low-battery warning clears once the cell reaches approximately 3.9V and the firmware registers a valid charge state.

Page turns are sluggish and the e-ink screen refreshes slowly after the battery swap — what's causing it?

E-ink displays draw a brief voltage spike to flip the electrophoretic particles during each page turn. When the cell is below 3.8V, the voltage sag under that spike slows the refresh cycle noticeably. Charge the device fully before your first reading session. At full charge, page-turn response returns to normal speed.

WiFi sync is draining the new battery noticeably faster than expected during normal reading use — is something wrong with the cell?

Nothing is wrong with the cell. WiFi radio draw on the Novel 7 is significantly higher than display-only operation — the e-ink panel uses almost no power between refreshes, but the WiFi radio pulls continuous current while syncing. Turn WiFi off in settings when you are not actively downloading content. Battery drain drops sharply under reading-only use with the radio off.

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