Samsung Galaxy S Advance EB535151VU Replacement Battery 3.8V 1600mAh

Samsung Galaxy S Advance GT-i9070 — 3.8V Li-ion Replacement Battery (EB535151VU)

This is a 3.8V, 1600mAh Li-ion cell for the Samsung Galaxy S Advance. It fits the GT-i9070, GT-i9070P, GT-I659, and closely related variants that share the EB535151VU form factor. Swap it in when the original cell no longer holds a usable charge through a normal day.

• GT-i9070 and GT-i9070P compatibility: These two variants use the same 3.8V rail, identical connector pinout, and the same BMS handshake sequence. The cell drops straight into either chassis without any wiring or adapter changes.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge on GT-i9070 hardware. The BMS accepted the charge profile without triggering a fault, and the protection circuit cut off correctly at the low-voltage threshold — no runaway or premature lockout.
• Fuel gauge recalibration on first use: Disable fast charging for the first complete discharge-charge cycle after fitting this cell. The fuel gauge IC on the GT-i9070 is calibrated to the old cell's discharge curve. One full cycle at standard current lets it remap against the new cell before higher charge rates are applied.

Why the GT-i9070 reports the wrong battery percentage after a cell swap

The GT-i9070 uses a coulomb-counter fuel gauge IC that builds its capacity model from accumulated charge and discharge data on the original cell. When a new cell goes in, the IC still references the old model — so the percentage shown on screen can be 10–20% off reality. This is not a fault with the replacement cell. One full discharge to shutdown followed by an uninterrupted charge to 100% forces the IC to re-anchor its zero and full points against the new cell's actual capacity. After that cycle, percentage readings settle to within a few percent of real state-of-charge.

Sudden shutdown at 20–30% on the new cell

This happens when the cell voltage drops below the modem or display's minimum sustain threshold under load, even though the fuel gauge still reads 20–30%. The original cell's internal resistance was well-mapped; the replacement cell's curve is not yet calibrated, so the IC underestimates how fast voltage collapses under peak current draw. The fix is the same recalibration cycle: discharge fully to automatic shutdown, then charge to 100% without interruption. After that, the fuel gauge correctly predicts the voltage cliff and the OS shuts down gracefully before the cell hits 3.0V.