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Asus VivoBook Flip 14 B31N1705 Compatible Battery 11.52V

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Sale priceFrom $73.99 USD Regular price $91.99
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Fits Asus VivoBook Flip 14 TP410UA-EC229T and replaces OEM part B31N1705.
11.52V and 3650mAh capacity restores full charge cycles on this convertible 2-in-1 laptop.
Connector seats flush into the internal battery slot with positive terminal forward orientation.
We bench-tested this cell against the original—BMS accepted charge within three cycles, no cutoff faults.
After installation, fully discharge to shutdown then charge uninterrupted to 100% to reset BIOS battery learn cycle.

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Check that your old battery model number and device model to match our description. This makes sure they work together.


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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

11.52V

Amp

3650mAh

Asus VivoBook Flip 14 TP410UA / TP410UR Series — 11.52V Li-Polymer Replacement Battery (B31N1705)

This is an 11.52V, 3650mAh (42.05Wh) Li-Polymer replacement battery for the Asus VivoBook Flip 14 convertible laptop. It fits the TP410UA, TP410UR, and TP410UF model lines, covering the EC229T, EC084T, EC002T, IB72T variants and over 56 additional configurations. OEM part numbers B31N1705, B31N1705-1, 0B200-02660000, and 0B200-02660100 all cross to this cell.

  • TP410 series compatibility: The TP410UA, TP410UR, and TP410UF share the same 11.52V three-cell architecture, connector pinout, and BMS handshake protocol — which is why one cell covers the full range. Swapping across sub-variants does not require firmware changes.
  • Bench tested on actual hardware: We ran this cell through charge-discharge cycles on a TP410UA and confirmed the BMS negotiation completed correctly — the EC recognised the pack, reported cell voltage accurately, and the charge controller reached termination voltage without error flags.
  • Post-install learn cycle on the TP410: After fitting, run the laptop down to hibernate cutoff, then charge uninterrupted to 100% without using the machine. This forces the BIOS battery learn cycle to reset against the new cell and clears the inaccurate health warning that appears after every cell swap on this platform.

Why the TP410 BIOS reports poor battery health immediately after a cell swap

The TP410's embedded controller reads cycle count and health data stored in the old cell's EEPROM. When a new cell goes in, that EEPROM data resets, and the EC briefly interprets the mismatch as a degraded or unknown pack. This is not a fault with the replacement cell — it is a calibration gap between the new chemistry and the EC's stored baseline. Running one complete discharge-to-hibernate then a full uninterrupted charge resolves it. After that cycle, the BIOS health indicator and Windows battery report will reflect the actual state of the new cell.

TP410 shutting down at 20–30% charge shown on screen

This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. The IC still uses the old cell's discharge profile, so it misreads remaining capacity — the displayed percentage does not match actual cell voltage, and the laptop hits the low-voltage cutoff before the screen shows 0%. The fix is two to three full discharge and charge cycles without interruption. After calibration, the EC tracks cell voltage accurately and the early shutdown stops — confirmed at cutoff voltage of approximately 9V across the three cells.

Compatible Models

VivoBook Flip 14 TP410UA-EC229T VivoBook Flip 14 TP410UR-EC084T TP410UF-EC002T VivoBook Flip 14 TP410UA-IB72T VivoBook Flip 14 TP410UA-EC410T TP410UF-1A VivoBook Flip 14 TP410UA-EC329T VivoBook Flip 14 TP410UA-EC242T TP410UF VivoBook Flip 14 TP410UA-DB71T TP410UR VivoBook Flip 14 TP410UF TP410UF-EC034T VivoBook Flip 14 TP410UA-EC339T VivoBook Flip 14 TP410UA-EC245T TP410UF-EC024T VivoBook Flip 14 TP410UA-DS52T UX460UA VivoBook Flip 14 TP410UR TP410UF-EC029T VivoBook Flip 14 TP410UA-EC415T VivoBook Flip 14 TP410UA-EC338T TP410UF-EC027T VivoBook Flip 14 TP410UA-EC251T VivoBook Flip 14 TP410UR-EC073T TP410UF-EC039T VivoBook Flip 14 TP410UA-EC463T VivoBook Flip 14 TP410UA-EC407T TP410UF-EC031T VivoBook Flip 14 TP410UA-EC323T VivoBook Flip 14 TP410UA-EC235T VivoBook Flip 14 TP410UR-EC089T VivoBook Flip 14 TP410UA-DB51T VivoBook Flip 14 TP410UA-MH51T VivoBook Flip 14 TP410UA-EC541T TP410UF-AH8201E VivoBook Flip 14 TP410UA-EC337T VivoBook Flip 14 TP410UA-EC243T UX460UA-2G VivoBook Flip 14 TP410UA-DH54T Q405UA-BI5T7 VivoBook Flip 14 TP410UF-EC003T TP410UF-EC017T VivoBook Flip 14 TP410UA-EC386T VivoBook Flip 14 TP410UA-EC334T TP410UF-EC023T VivoBook Flip 14 TP410UA-DS71T VivoBook Flip 14 TP410UA-EC241T UX460UA-1B VivoBook Flip 14 TP410UR-EC065T TP410UF-EC030T VivoBook Flip 14 TP410UA-EC416T VivoBook Flip 14 TP410UA-EC405T TP410UF-EC069T VivoBook Flip 14 TP410UA-EC306T VivoBook Flip 14 TP410UA UX331UA TP410UA Q405UA-BI5T5 Q405UA

Replaces Part Numbers

B31N1705 B31N1705-1 0B200-02660000 0B200-02660100

Technical Specifications

Voltage11.52V
Amp Hours3650mAh
Capacity3650mAh
Rate42.05Wh
Net Weight175.2g /6.18 oz
Gross Weight435.2g /15.35 oz
Approximate Weight435.2g /15.35 oz
Dimension 204.84 x 193.60 x 6.60mm

Product Highlights

  • Brand: Asus
  • 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 TP410 is showing "0% available (plugged in, not charging)" right after I put the new battery in — is the cell dead?

It is not dead. The embedded controller on the TP410 loses its reference data when the old cell is removed, and it sometimes fails to recognise the new pack until a full charge cycle forces a handshake reset. Plug in the charger, leave the lid closed, and let it charge uninterrupted to 100% without booting the OS mid-cycle. If the EC still shows 0% after a full charge attempt, hold the power button for 30 seconds with the charger connected to force an EC reset.

Windows is reporting this battery as 38Wh when the spec says 42.05Wh — did I get the wrong cell?

You have the right cell. The Wh figure Windows reads comes from the EEPROM on the battery pack, and the value stored there reflects the OEM-rated capacity at end-of-manufacture tolerance rather than the measured chemistry output. The actual usable energy is 42.05Wh — the discrepancy is a reporting artefact, not a capacity shortfall. Run two full discharge-to-charge cycles and the fuel gauge IC will recalibrate; the figure Windows reports will shift closer to the rated value.

The TP410 charges to exactly 80% then stops — the charger light stays on but the percentage won't move.

This is a BIOS-controlled charge limit, not a fault with the replacement cell. Asus ships some TP410 units with a battery health charging mode enabled in MyASUS or the BIOS, which caps charge at 80% to reduce cell stress over long-term plugged-in use. Open MyASUS, go to Battery Health Charging, and switch the mode from "Balanced" or "Maximum Lifespan" to "Full Capacity." The battery will then charge to 100%.

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