Samsung SB-P90A Camcorder Replacement Battery 3.7V 1200mAh

Samsung VM-M102 / VP-M105S Series — 3.7V Li-ion Replacement Battery (SB-P90A)

This is a 3.7V, 1200mAh Li-ion replacement battery for the Samsung VM-M102 and VP-M105S series compact digital camcorders. It replaces OEM part numbers SB-P90A, SB-90ASL, SB-P90AB, and SB-P90ASL. Fits 27 Samsung camcorder models across the VM and VP product lines.

• VP/VM series compatibility: These Samsung camcorder lines share the same 3.7V single-cell battery bay, connector pinout, and BMS handshake protocol — which is why one replacement cell covers the full model range from the VM-M102 through VP-M2100B and VP-M2050S.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on compatible Samsung hardware. The BMS accepted the cell without faults, held voltage at 3.7V nominal through the discharge curve, and did not trigger low-voltage cutoff prematurely.
• First-use charge cycle in the camcorder body: Insert the new battery and run a full charge inside the camcorder rather than a standalone charger. Samsung's BMS in these models maps the battery-remaining display using a charge cycle initiated from within the camera body — skipping this step can cause the indicator to read inaccurately from the first use.

Why the VM-M102 shows a dead battery indicator on a partially charged replacement cell

Samsung's battery fuel gauge in the VM and VP series is calibrated against the OEM cell's discharge curve. A new third-party cell with a slightly different internal resistance profile can cause the indicator to cut to zero before the cell is actually depleted. The BMS reads a voltage dip under load and interprets it as end-of-charge rather than a momentary sag. Running one full charge-discharge cycle inside the camcorder body resets the fuel gauge reference point and restores accurate display.

Battery percentage jumping erratically during recording on the VP-M105S

This happens when the voltage-threshold map stored in the camcorder's firmware doesn't yet align with the new cell's actual discharge curve. The indicator jumps because the BMS is sampling voltage points that fall between calibration thresholds set for the original OEM cell. It is not a fault with the replacement cell — the cell is delivering correct voltage. Charge the battery fully via the camcorder body, discharge it completely through normal recording, then recharge fully; after one complete cycle the display stabilises.