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Samsung Galaxy Note 9 EB-BN965ABE Replacement Battery 3.85V 4000mAh

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From $25.99 USD $31.99
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Fits Samsung Galaxy Note 9 models SM-N960U, SM-N9600, SM-N960N and replaces OEM battery EB-BN965ABE.
3.85V, 4000mAh Li-Polymer cell restores full charge capacity on devices showing rapid drain or shutdown.
Connector slides straight into the battery slot beneath the back cover with no locking tab required.
Bench testing showed the fuel gauge IC accepted the new cell after one full discharge cycle.
On first use after installation, disable fast charging for one complete discharge-charge cycle to let the fuel gauge IC recalibrate against the new cell's discharge curve.
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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

3.85V

Amp

4000mAh

Samsung Galaxy Note 9 — 3.85V Li-Polymer Replacement Battery (EB-BN965ABE)

This is a 3.85V, 4000mAh Li-Polymer battery for the Samsung Galaxy Note 9, covering model numbers SM-N9600, SM-N960U, SM-N960N, and several additional regional variants. It replaces OEM part numbers EB-BN965ABE and EB-BN965ABU. The cell restores full power delivery to the display, processor, modem, and S Pen detection circuitry.

  • Note 9 regional variants covered: The SM-N960 series spans multiple carrier and regional builds, but all share the same battery bay geometry, connector pinout, and BMS handshake protocol — one cell covers the full lineup without modification.
  • Bench tested on actual hardware: We ran this cell in an SM-N960U and confirmed the BMS negotiated charge current correctly with the on-board charge IC, held voltage through a full display-on load cycle, and passed the connector retention check without flex on the tab.
  • Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current fast charging pushes current into an uncalibrated cell.

Sudden shutdown at 20–30% on the Note 9 after a cell swap

The Note 9's fuel gauge IC stores a learned discharge curve from the original cell. A new cell has a steeper voltage cliff under modem and display load at lower states of charge. When the fuel gauge reads 20–30%, the actual cell voltage can drop below the modem's minimum rail — the phone cuts out even though the reported percentage looks safe. One full discharge-to-shutdown followed by a complete charge resets the coulomb counter and maps the new curve correctly. After that cycle, shutdowns at 20–30% should not repeat.

USB-PD fast charge not accepted on the first cycle after replacement

Some Note 9 units reject Adaptive Fast Charging on the first charge cycle after a battery swap — the charge IC briefly flags the new cell's impedance as out of range and defaults to standard 5V charging. This is not a fault with the battery or the charger. Charge the device once on a standard 5W adapter to full, then reconnect your fast charger — the charge IC re-evaluates cell impedance at a known state of charge and typically accepts fast charging from that point forward.

Compatible Models

Galaxy Note 9 SM-N9600 SM-N960U SM-N960N SM-N960F SM-N960D SGH-N058 Galaxy Note 9 TD-LTE Galaxy Note 9 Duos Note 9 Duos TD-LTE Crown

Replaces Part Numbers

EB-BN965ABE EB-BN965ABU

Technical Specifications

Voltage3.85V
Amp Hours4000mAh
Capacity4000mAh
Rate15.4Wh
Net Weight59.4g /2.10 oz
Gross Weight94g /3.32 oz
Approximate Weight94g /3.32 oz
Dimension 90.80 x 41.14 x 6.45mm

Product Highlights

  • Brand: Samsung
  • 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 Note 9 powers off at around 25% after putting in a new battery — why does this keep happening even after a full recharge?

The fuel gauge IC on the Note 9 is still running the discharge model it learned from the old, degraded cell. The new cell has a different voltage curve, and under modem or screen load at lower charge levels, the actual voltage drops below what the processor's power rail needs — the phone shuts down even though the display shows 25% remaining. Run one complete cycle: discharge fully to automatic shutdown, then charge uninterrupted to 100% with fast charging disabled. That forces the coulomb counter to remap against the new cell and eliminates the premature cutoff.

The phone feels warm near the battery area while charging after the replacement — is that normal?

A new Li-Polymer cell has higher internal impedance than a well-cycled cell, so the charge IC dissipates slightly more heat during the first few charge sessions. This is normal for the first two to three cycles and reduces as the cell settles. If warmth continues beyond three full charge cycles or the phone gets hot enough to trigger a temperature warning, check that the replacement cell's dimensions match — 90.80 x 41.14 x 6.45mm — as a misfit cell can cause abnormal resistance at the contacts.

The Note 9 won't turn on at all after sitting in a drawer for months — the screen stays black even on the charger.

When a Li-Polymer cell discharges below roughly 2.5V in storage, the BMS locks out to prevent charging into a potentially unstable cell. Connect the phone to the original Samsung charger — third-party chargers sometimes do not deliver enough trickle voltage to wake a locked BMS. Leave it connected for 15–20 minutes without pressing the power button; the charge IC will attempt a slow recovery charge at reduced current. If the battery icon appears, charging has resumed — continue to full charge before powering on normally.

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