About this replacement
Samsung Galaxy J7 Prime / On7 2016 — 3.85V Li-Polymer Replacement Battery (EB-BG610ABE)
This 3300mAh Li-Polymer cell replaces the EB-BG610ABE battery in the Samsung Galaxy J7 Prime (SM-G6100), Galaxy On7 2016 Duos, Galaxy On7 Prime 2018, and related variants. It runs at 3.85V nominal, matching the charge IC expectations on these boards. Swap it in when the original cell no longer holds charge through a normal day.
- J7 Prime and On7 2016 series compatibility: These models share the same battery bay dimensions (99.60 × 45.00 × 4.50mm), the same 3.85V charge rail, and the same BMS connector pinout — which is why one cell covers all of them. The EB-BG611ABE and GH82-17872A part numbers refer to the same physical cell across regional variants.
- Bench tested on actual hardware: We ran this cell on a J7 Prime board and confirmed the BMS handshake completed without fault codes. The charge IC accepted the new cell and stepped through trickle, constant-current, and constant-voltage phases cleanly.
- Fuel gauge recalibration after install: On first use after installation, disable fast charging and run one full discharge-charge cycle. The fuel gauge IC on this board is calibrated to the old cell's discharge curve — one complete cycle against the new cell lets the coulomb counter reset its reference points before fast charging applies high current to an uncalibrated cell.
Sudden shutdown at 20–30% on the J7 Prime after a cell swap
This is a voltage cliff issue, not a capacity problem. Under load from the modem or display, the new cell's terminal voltage drops faster than the fuel gauge IC predicts — because the IC is still using the discharge curve of the degraded original cell. The phone reads 25% but the cell voltage has already fallen below the shutdown threshold. One full discharge-charge cycle with fast charging off forces the IC to map the new cell's actual voltage curve, and the early shutdowns stop.
Phone not powering on after the replacement battery sat in storage
Li-Polymer cells self-discharge in storage, and if the cell voltage dropped below approximately 2.5V per cell, the BMS will have triggered a lockout to prevent damage. The phone shows nothing — no charge indicator, no boot screen. Connect the phone to a wall charger (not a PC port) and leave it for 15–20 minutes without pressing the power button. Once the charge IC delivers enough current to lift the cell above the BMS re-initialisation threshold, the charging indicator will appear and the phone will boot normally.