About this replacement
Samsung NX200 / NX300 Series — 7.4V Li-ion Replacement Battery (BP-1030)
This is a 7.4V, 800mAh Li-ion replacement for the Samsung BP-1030 / ED-BP1030 battery. It fits the NX200, NX210, NX300, and NX300M mirrorless camera bodies. Voltage and cell chemistry match OEM spec so the camera body accepts it without modification.
- NX200 / NX300 platform compatibility: These models share the same battery bay dimensions, contact pin layout, and 7.4V supply rail. The BMS handshake protocol is identical across the series, so one cell format covers the full range.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on an NX300 body. The BMS accepted the cell on first install, reported charge state accurately after one full charge cycle, and cutoff at the correct low-voltage threshold without triggering a body fault.
- First-install charge cycle on the NX series: Run a full charge inside the camera body or OEM charger before your first shoot. The NX BMS maps battery-remaining percentage against the cell's discharge curve — skipping this step can cause the indicator to read inaccurately for the first several uses.
Battery percentage jumping erratically on the NX200 display
Samsung's NX BMS uses voltage thresholds to estimate remaining charge. A new cell has a slightly different discharge curve shape than an aged OEM cell the camera was previously calibrated against. This causes the indicator to skip levels or jump backward, especially between 60% and 30%. After one full charge-to-cutoff cycle inside the camera body, the BMS recalibrates and the readout stabilises. If jumping persists past two cycles, check that the cell resting voltage is 7.4V before insertion.
Flash not fully recycling between shots on a fresh NX300 cell
The built-in flash on the NX300 draws a short, high-current pulse to recharge its capacitor between frames. If the cell voltage sags during that burst — even briefly — the capacitor does not reach full charge before the next shot, and flash output drops. This is more pronounced at low state of charge or in cold conditions where internal resistance rises. Keep the cell above 50% charge during flash-heavy shooting, and allow an extra second between flashes if you notice uneven exposure in a burst sequence.