Samsung Galaxy Tab A SM-T510 EB-BT515ABU Replacement Battery 3.85V 6000mAh

Samsung Galaxy Tab A 10.1 2019 — 3.85V Li-Polymer Replacement Battery (EB-BT515ABU)

This is a 3.85V, 6000mAh Li-Polymer replacement battery for the Samsung Galaxy Tab A 10.1 2019. It fits SM-T510 and SM-T515 models directly. The cell matches the original footprint at 136.75 × 109.22 × 2.52mm, so it seats correctly inside the chassis without modification.

• SM-T510 and SM-T515 compatibility: Both variants share the same battery bay dimensions, connector pinout, and BMS handshake protocol. The EB-BT515ABU part number covers both the Wi-Fi (T510) and LTE (T515) models because Samsung used the same cell and management circuit across the pair.
• Bench tested on actual hardware: We ran this cell on an SM-T510 unit. The BMS accepted the initial charge without fault flags, voltage settled at 3.85V nominal under display-on load, and the charge IC completed a full cycle without thermal events.
• Fuel gauge recalibration after installation: After fitting this battery, run the tablet down to automatic shutoff, then charge it uninterrupted to 100% before unplugging. This single full cycle lets the fuel gauge IC map its cutoff thresholds to the new cell and corrects the percentage drift that almost always appears on the first day after a swap.

Galaxy Tab A 10.1 shutting down at 15–25% remaining after battery replacement

The SM-T510 drives a 10.1-inch display, Wi-Fi radio, and background app refresh simultaneously. That combined load pulls a current spike that the uncalibrated fuel gauge reads as a voltage cliff — so it triggers a protective shutdown even though the cell still has charge left. The fuel gauge IC was calibrated to your old, degraded cell, not this one. One full discharge-to-shutoff followed by a full uninterrupted charge resets the reference points and clears this behaviour. After that cycle, the tablet should no longer cut out above 15%.

Fast charging not available on the Tab A 10.1 after swapping the battery

Samsung's adaptive fast charge protocol requires a completed charge handshake between the charger, the USB-PD controller, and the battery's BMS. On a fresh cell that has never completed a full cycle, the BMS sometimes defaults to standard charge rates as a conservative safety measure. This is not a fault with the charger or the replacement cell. Charge once at standard rate to 100%, let the tablet sit at full charge for five minutes, then reconnect your fast charger — the negotiation completes correctly after that first accepted cycle.