HQ-7160SS Samsung Galaxy A06 Replacement Battery 3.88V 4850mAh

Samsung Galaxy A06 SM-A065F — 3.88V Li-Polymer Replacement Battery (HQ-7160SS)

This is a 3.88V, 4850mAh Li-Polymer replacement battery for the Samsung Galaxy A06, fitting models SM-A065F, SM-A065F/DS, and SM-A065M. It replaces OEM part HQ-7160SS when the original cell has degraded, swollen, or lost charge capacity. Dimensions are 94.00 × 67.00 × 4.10mm — confirm clearance before installation.

• Galaxy A06 model variants: The SM-A065F and SM-A065F/DS share the same battery bay dimensions, connector pinout, and BMS handshake protocol — all accept the HQ-7160SS cell without modification. Regional variants differ only in radio bands, not power architecture.
• Bench tested on actual hardware: We ran this cell through the Galaxy A06's charge IC and confirmed the BMS negotiated correctly with Samsung's charge controller — charge current ramped as expected and thermal protection triggered at the correct threshold under load simulation.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC recalibrate against the new cell's discharge curve before high-current fast charging pushes current into an uncalibrated cell.

Why the Galaxy A06 reports wrong battery percentage after a cell swap

The Galaxy A06 uses a coulomb counter tied to the fuel gauge IC, which builds its charge-curve model against the original cell over time. When you swap the cell, the IC still references the old cell's learned curve, so percentage readings drift — often showing 100% cut off early or reading 40% when the cell is nearly flat. One full discharge to auto-shutdown followed by an uninterrupted charge to 100% resets the coulomb counter baseline. After that single cycle, percentage accuracy returns to normal. Do not use the phone during that calibration charge if possible.

Sudden shutdown at 20–30% on the replacement cell

This happens when the modem or display draws a current spike that drops cell voltage below the BMS cutoff threshold — even though the gauge still shows charge remaining. A fresh Li-Polymer cell has slightly higher internal impedance on its first few cycles, making it more vulnerable to this voltage cliff. Run two or three full discharge-charge cycles to condition the cell and lower impedance. If shutdowns persist past cycle three, check that the battery connector is fully seated — a partial connection raises contact resistance and worsens voltage sag under load. Target resting voltage after a full charge should read 4.35–4.40V at the terminals.