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Alcatel OneTouch EVO 7 HD Replacement Battery TLP041B2 3.7V

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From $28.99 USD $35.99
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Fits Alcatel OneTouch EVO 7 HD and E710 tablet models, replacing OEM battery TLP041B2.
3.7V 4000mAh Li-Polymer cell delivers the voltage and capacity this tablet's power management IC expects.
Connector seats flat against the internal header with no locking tab — orientation marked on the cell itself.
We bench-tested the pack on a EVO 7 HD circuit board; the BMS discharged linearly through the operating window.
After installation, run one full discharge to automatic shutoff then charge uninterrupted to 100% — this resets the fuel gauge IC calibration against the new cell and resolves inaccurate percentage display that appears after a swap.
Delivery time

This product ships directly from our Manufacturer's Warehouse and is usually delivered within 7 – 10 business days to your doorstep.

Discount: As a thank you for your patience, enjoy 5% off on your order
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Fresh Battery, Worth the Wait

To provide the highest-quality replacement battery, we ship this battery directly from the manufacturer rather than from aging warehouse inventory. This means delivery may take a little longer, but it helps ensure you receive a fresh battery with better performance, a longer lifespan, and greater reliability.

Estimated delivery: 7–10 business days
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By continuing with your purchase, you acknowledge and agree to the estimated 7–10 business day delivery timeframe.
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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

3.7V

Amp

4000mAh

Alcatel OneTouch EVO 7 HD / E710 — 3.7V Li-Polymer Replacement Battery (TLP041B2)

This is a 3.7V 4000mAh (14.8Wh) lithium-polymer battery for the Alcatel OneTouch EVO 7 HD and E710 Android tablet. It replaces OEM part TLP041B2, which powers the 7-inch display, WiFi radio, and system board. Fit the new cell when the original no longer holds a useful charge or fails to power the tablet on.

  • OneTouch EVO 7 HD and E710 fitment: Both model designations run the same battery bay, connector pinout, and charge IC handshake. TLP041B2 covers both without modification.
  • Bench tested on actual hardware: We cycled this cell through full charge and discharge on the EVO 7 HD board. The charge IC accepted the new cell without fault codes, and BMS protection tripped correctly at the low-voltage cutoff threshold.
  • Fuel gauge reset after installation: After fitting this battery, run the tablet down to automatic shutoff under normal screen-on use, then charge uninterrupted to 100% without using the device. This single full cycle re-calibrates the fuel gauge IC against the new cell's actual capacity curve and corrects the inaccurate percentage readings that almost always appear immediately after a swap.

Tablet shutting down at 15–25% remaining after battery replacement

The EVO 7 HD draws combined load from the display backlight, WiFi radio, and CPU simultaneously during normal use. A new cell whose fuel gauge IC hasn't been calibrated yet reports a state-of-charge that doesn't match actual cell voltage under that combined load. When real cell voltage drops below the BMS cutoff threshold, the tablet shuts off even though the percentage shown on screen says 15–25%. One full discharge-to-shutoff cycle followed by an uninterrupted charge to 100% re-aligns the IC. After that cycle, shutdowns should track correctly with the reported percentage.

Battery percentage jumping or reading incorrectly after swap

The charge controller IC on the EVO 7 HD stores a learned capacity profile from the previous cell. When a new TLP041B2 goes in, that stored profile no longer matches the new cell's voltage-to-capacity curve, which causes the OS to display incorrect or erratic percentages. This is not a fault with the replacement cell — it's a calibration mismatch. Discharge the tablet fully until it powers off automatically, then charge it in one uninterrupted session to 100%. The fuel gauge IC rewrites its reference curve against the new cell and percentage accuracy returns.

Compatible Models

OneTouch EVO 7 HD E710

Replaces Part Numbers

TLP041B2

Technical Specifications

Voltage3.7V
Amp Hours4000mAh
Capacity4000mAh
Rate14.8Wh
Net Weight78g /2.75 oz
Gross Weight113g /3.99 oz
Approximate Weight113g /3.99 oz
Dimension 131.84 x 67.42 x 3.80 mm

Product Highlights

  • Brand: Alcatel
  • 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

Fast charging stopped working after I replaced the battery on my EVO 7 HD — is it broken?

The charge IC on the EVO 7 HD re-negotiates charge rate on the first accepted cycle with a new cell. Until that cycle completes, the controller defaults to standard charge current as a safety measure. Plug in via the original charger and cable, let it charge uninterrupted from low to 100%, and fast charge negotiation should resume from the next session onward.

My EVO 7 HD battery percentage drops much faster from 100% than it did when the tablet was new — what's wrong?

This is fuel gauge drift: the IC is still using a capacity reference calibrated to the old, degraded cell. The new TLP041B2 cell has more usable capacity than the old one, but the gauge doesn't know that yet, so it over-reports consumption. Run one full discharge to automatic shutoff under screen-on use, then charge uninterrupted to 100%. The gauge recalibrates to the new cell's actual capacity curve and the percentage drop rate normalises.

The EVO 7 HD feels warm while charging after fitting the new battery — should I be concerned?

Mild warmth during charging is normal when the charge IC runs its first full-current session on a new cell. The IC is operating at its programmed charge rate, which generates some heat at the cell and PCB. If the tablet becomes hot to the touch or the charge session stops and restarts repeatedly, check that the charger output matches the original spec and that the connector is fully seated. A stable charging session that completes without interruption at around 5V input is the expected outcome.

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