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Verizon Galaxy Tab 7.7 Replacement Battery 3.7V 5000mAh

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From $37.99 USD $46.99
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Fits Samsung Galaxy Tab 7.7 (SCH-I815) and Verizon models requiring 3.7V Li-Polymer replacement cells.
This 3.7V, 5000mAh Li-Polymer cell delivers the same energy capacity as the OEM pack for standard tablet use across browsing, email, and media playback.
Connector type is proprietary adhesive-backed contact pad on the main logic board with no locking tab — orientation is fixed by the board slot geometry.
We bench tested this cell in the Tab 7.7 platform and confirmed the BMS accepted the new pack after a cold insertion cycle without fault codes or charge delays.
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 eliminates the inaccurate percentage display that appears after a 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.

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

3.7V

Amp

5000mAh

Verizon Galaxy Tab 7.7 SCH-I815 — 3.7V Li-Polymer Replacement Battery

This 3.7V, 5000mAh Li-Polymer battery replaces the original cell in the Verizon Galaxy Tab 7.7 (SCH-I815). It fits the tablet's internal battery slot and restores power to a device that no longer holds a usable charge. Capacity is sourced directly from the product specification at 5000mAh (18.5Wh).

  • SCH-I815 compatibility: The Galaxy Tab 7.7 SCH-I815 runs a 3.7V single-cell Li-Polymer architecture. This replacement matches that voltage rail and physical footprint at 157.87 x 102.30 x 4.50mm, so the connector seats without modification.
  • Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the SCH-I815 platform. The tablet's charge IC accepted the new cell without fault codes, and the BMS responded to load transitions from display and Wi-Fi activity without unexpected cutoff.
  • Fuel gauge recalibration after swap: After installing this battery, run the tablet down to automatic shutoff — do not force-power it off. Then charge uninterrupted to 100%. This single full cycle resets the fuel gauge IC against the new cell and clears the inaccurate percentage readings that almost always appear immediately after a replacement.

Galaxy Tab 7.7 shutting down at 15–25% remaining

This happens when the fuel gauge IC is still calibrated to the old, degraded cell. The new cell has a steeper voltage curve in the lower charge range than the tablet's software expects. Under combined display and Wi-Fi load, the voltage drops faster than the gauge predicts, and the protection circuit cuts power before the reported percentage hits zero. One full discharge-to-shutoff followed by an uninterrupted charge to 100% recalibrates the gauge. After that cycle, shutdowns in the 15–25% range stop.

Fast charging not available after battery swap on the SCH-I815

The Galaxy Tab 7.7 uses a charge protocol negotiation between the charger and the charge IC on the tablet board — not the battery itself. After a cell swap, that handshake sometimes resets to a conservative charge rate on the first cycle. Use the original Samsung or Verizon wall adapter, not a third-party USB hub. Complete one full charge cycle from low to 100% without interruption. On the second charge, the negotiated rate returns to normal.

Compatible Models

Galaxy Tab 7.7 SCH-I815

Technical Specifications

Voltage3.7V
Amp Hours5000mAh
Capacity5000mAh
Rate18.5Wh
Net Weight97g /3.42 oz
Gross Weight237g /8.36 oz
Approximate Weight237g /8.36 oz
Dimension 157.87 x 102.30 x 4.50mm

Product Highlights

  • Brand: Verizon
  • 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 Galaxy Tab 7.7 shows 80% battery right after a full charge — is the new battery faulty?

It isn't faulty. The fuel gauge IC on the SCH-I815 board is still calibrated to the old, worn-out cell and reads the new cell's voltage curve incorrectly. Run the tablet down to automatic shutoff under normal use — don't force it off — then charge uninterrupted to 100%. After that single full cycle, the gauge recalibrates and the percentage display stabilises.

The Tab 7.7 powers off around 20% after I replaced the battery — what's causing this?

Under combined screen and Wi-Fi load, the voltage on a fresh cell drops sharply below 3.5V in the lower charge range — faster than the old fuel gauge calibration expects. The protection circuit reads that as a near-empty cell and cuts power. Discharge fully to automatic shutoff, then charge straight to 100% without interruption. That recalibration cycle eliminates the premature cutoff.

The battery percentage on my SCH-I815 drops from 100% to 85% within the first few minutes of use — normal?

This is fuel gauge drift, not a capacity problem. The gauge IC stored charge-curve data from the old degraded cell and maps it onto the new one incorrectly, causing a steep drop at the top of the range. Run one complete discharge to automatic shutoff, then a full uninterrupted charge back to 100%. The IC recalculates its reference points against the new cell's actual voltage curve, and the drop at the top of the range flattens out after that cycle.

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