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BlackView Tab 11 Compatible Battery 3.8V 6500mAh U3295123PVUTL

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Fits BlackView Tab 11 tablet; replaces OEM part number U3295123PVUTL.
This 3.8V, 6500mAh lithium-polymer cell restores full capacity to a degraded pack.
Connector slides into the original battery slot with no modification required.
We ran the cell through three full discharge-charge cycles; BMS accepted the new pack without fault codes.
After installation, discharge the tablet fully to automatic shutoff, then charge uninterrupted to 100% — this resets the fuel gauge calibration and fixes inaccurate percentage reporting that often appears after a battery swap.
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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.

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🔹 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

3.8V

Amp

6500mAh

BlackView Tab 11 — 3.8V Li-Polymer Replacement Battery (U3295123PVUTL)

This 3.8V, 6500mAh Li-Polymer battery replaces part number U3295123PVUTL in the BlackView Tab 11 tablet. It powers the display, processor, and wireless radios at the same voltage and capacity as the original cell. Rated at 24.7Wh, it matches the factory specification for the Tab 11 platform.

  • BlackView Tab 11 fitment: The Tab 11 uses a single-cell Li-Polymer pack with a proprietary connector and BMS handshake tied to the charge IC on the motherboard. This replacement uses the same cell format and communicates correctly with that charge IC without triggering a fault state.
  • Bench tested on actual hardware: We cycled this battery through charge and discharge on the Tab 11 platform. The BMS accepted the cell without error flags, and the charge IC completed a full cycle to 4.35V cutoff without interruption.
  • Fuel gauge reset after installation: After fitting, run the tablet down to automatic shutoff, then charge uninterrupted to 100%. This single full cycle resets the fuel gauge IC calibration against the new cell and clears the inaccurate percentage readings that typically appear immediately after a swap.

BlackView Tab 11 shutting down at 15–25% remaining

This happens when the fuel gauge IC is still calibrated to the discharge curve of the old, degraded cell. The new cell has a steeper voltage drop at low charge, so the gauge misreads remaining capacity and the protection circuit trips early. The fix is one full discharge-to-shutoff cycle followed by an uninterrupted charge to 100%. After that single cycle, the gauge maps the new cell's curve and cutoffs shift back to near 0%.

Fast charging not available on Tab 11 after battery swap

The Tab 11 charge IC runs a USB-PD negotiation handshake before stepping up to fast-charge voltage. On a freshly installed cell, this handshake sometimes fails on the first connection because the BMS is in an uninitialised state. Disconnect the charger, wait 30 seconds, then reconnect. If fast charge still does not activate after one full standard charge cycle, check that the charger output meets the USB-PD profile the Tab 11 expects — 9V at 2A minimum.

Compatible Models

Tab 11

Replaces Part Numbers

U3295123PVUTL

Technical Specifications

Voltage3.8V
Amp Hours6500mAh
Capacity6500mAh
Rate24.7Wh
Gross Weight350g /12.35 oz
Approximate Weight350g /12.35 oz

Product Highlights

  • Brand: BlackView
  • 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 BlackView Tab 11 is showing a battery percentage that jumps around and doesn't match actual charge — is the new battery faulty?

The fuel gauge IC on the Tab 11 motherboard is calibrated to the discharge curve of the original cell. When a new cell goes in, the gauge reads the wrong curve and reports inaccurate percentages — jumps, sudden drops, or a reading stuck at one number are all symptoms of this. Run the tablet down to automatic shutoff without interruption, then charge uninterrupted to 100%. That single full cycle recalibrates the gauge against the new cell's curve.

The Tab 11 goes warm during charging after the battery swap — should I be concerned?

Warmth during charging is normal on the first few cycles with a new cell. The charge IC is running a formation profile against the fresh Li-Polymer cell, which draws slightly higher current than a partially aged pack. As long as the tablet is not hot to the touch and charging stops at 100%, nothing is wrong. If the device becomes hot enough to trigger a thermal warning on screen, stop charging and check that the charger output voltage matches the Tab 11 spec of 5V or 9V USB-PD.

The Tab 11 percentage drops fast from 100% in the first hour but then slows down — why does it do this after fitting a replacement battery?

This is fuel gauge drift — the IC is interpolating between calibration points it learned from the old cell, so the top portion of the curve reads faster than the actual voltage change on the new cell. It is not a capacity problem; the full 6500mAh is available. One full discharge-to-shutoff followed by an uninterrupted charge to 100% gives the gauge enough data to remap the curve correctly and the percentage drop will even out across the full range.

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