Samsung Galaxy M01 Core EB-BA013ABY Replacement Battery 3.85V 2900mAh

Samsung Galaxy M01 Core 2020 — 3.85V Li-ion Replacement Battery (EB-BA013ABY)

This is a 3.85V Li-ion replacement battery rated at 2900mAh (11.17Wh) for the Samsung Galaxy M01 Core 2020. It fits the SM-M013F/DS, SM-A013G/DS, SM-A015F, and 13 additional variants sharing the same battery bay and connector spec. Install it when the original cell can no longer hold a charge through a normal day.

• SM-M013F and SM-A013G series fit: These model variants share the same 3.85V rail, physical footprint (69.60 × 54.60 × 4.90mm), and BMS handshake protocol. One battery covers all listed SKUs without any modification to the housing or connector.
• Bench tested on actual hardware: We ran this cell through a full discharge-charge cycle on the SM-A013G/DS platform. The BMS accepted the charge handshake on the first cycle, and cell voltage under active screen load held within the expected window throughout the test.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before the charge IC starts pushing higher current into an uncalibrated cell — otherwise the percentage readout will drift.

Sudden shutdown at 20–30% on the M01 Core after a cell swap

This is a voltage cliff issue, not a capacity defect. When the modem and display pull load simultaneously, a new cell with an uncalibrated fuel gauge IC can drop below the BMS cutoff threshold before the displayed percentage reaches zero. The phone shuts down because the BMS sees cell voltage fall under roughly 3.4V under load, even though the coulomb counter still shows charge remaining. One full discharge-charge cycle without fast charging lets the IC recalibrate its state-of-charge model against the new cell's actual voltage curve.

Phone warm near the battery during the first few charges after replacement

A new cell arrives with higher internal impedance than a conditioned cell. During the first one or two charge cycles, the charge IC pushes current into that higher impedance, which generates more heat than normal. This is expected behaviour on the first cycle, not a fault with the battery or the charge IC. If the device remains warm past the third full charge cycle, check that the rear cover is seated flush — a gap traps heat instead of allowing it to dissipate through the back panel.