Leica V-LUX1 Replacement Battery BP-DC5-E 7.4V 750mAh

Leica V-LUX1 — 7.4V Li-ion Replacement Battery (BP-DC5-E)

This is a 7.4V, 750mAh lithium-ion cell built to the BP-DC5-E specification. It fits the Leica V-LUX1 bridge camera and slots into the same battery compartment as the original Leica cell. Voltage and connector match the OEM unit exactly.

• V-LUX1 fit confirmed: The V-LUX1 uses a single-cell Li-ion pack at 7.4V nominal. The BP-DC5-E form factor is specific to this body — the connector alignment and physical dimensions (44.50 × 35.85 × 18.85mm) match the compartment latch and contact pins without modification.
• Bench tested on actual hardware: We cycled this cell through the camera body and an OEM-compatible external charger. The BMS accepted the cell on the first charge cycle and reported stable voltage throughout discharge. No cutoff events were triggered under standard shooting loads including continuous autofocus and optical zoom.
• First-use charge protocol for the V-LUX1: Run the first full charge cycle through the camera body rather than an external charger alone. The V-LUX1 BMS maps the battery-remaining display against the cell's discharge curve — a full in-body charge cycle on first use lets the camera calibrate that reading accurately from the start.

Dead battery indicator on the V-LUX1 with a partially charged replacement cell

The V-LUX1 reads battery level by mapping voltage against a stored discharge curve. A new third-party cell ships with a partial charge, and its resting voltage at that state of charge can sit outside the window the camera expects. The body then displays a dead or critically low battery indicator even though the cell has usable capacity. One full charge cycle via the camera body resets the reference point. After that cycle, the indicator tracks correctly through normal discharge.

Battery percentage jumping erratically on the V-LUX1 display

This happens when the camera's voltage-threshold map doesn't yet align with the new cell's discharge curve. The V-LUX1 infers remaining capacity from voltage steps — if the curve shape differs slightly from the original cell, the indicator can jump several percent between shots or skip segments entirely. It is a display calibration issue, not a fault with the cell. Discharge the battery fully until the camera powers off, then recharge to 100% in-body; this gives the BMS a full curve to map against and stabilises the readout.