Praktica SC 1 Replacement Battery FJ-SLB-10A 3.7V 1050mAh

Praktica SC 1 / IX-6 — 3.7V Li-ion Replacement Battery (FJ-SLB-10A)

This is a 3.7V, 1050mAh Li-ion cell built to the FJ-SLB-10A specification. It fits the Praktica SC 1 and IX-6 compact digital cameras. Voltage, connector footprint, and physical dimensions (43.30 × 31.30 × 7.10mm) match the original cell exactly.

• SC 1 and IX-6 platform fit: Both models share the same battery bay geometry, contact polarity, and 3.7V supply rail — one cell covers both. The BMS on each body reads cell voltage via the same two-contact interface, so no firmware or connector differences to navigate.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a camera body load profile — image sensor, autofocus, and flash capacitor recharge included. The BMS accepted the cell without rejection flags and voltage held stable across the discharge curve.
• First-install charge cycle on the SC 1: Fit the new cell and run one full charge directly in the camera body before shooting. The SC 1's battery-remaining indicator maps voltage thresholds learned during that first in-body charge cycle — skipping it can cause the display to read inaccurately from the start.

Flash output dropping mid-shoot on a new SC 1 battery

The SC 1's flash capacitor pulls a short but sharp current spike to recharge between shots. As the cell approaches the lower end of its discharge curve — around 3.5V — the capacitor recharge time lengthens and flash output starts to fall short of full power. This is not a fault with the cell; it is the load characteristic of any Li-ion cell at low state of charge. If flash output is noticeably weaker late in a session, check the battery indicator and recharge before the next shoot.

Battery percentage jumping erratically on the SC 1 display

The SC 1 maps its fuel gauge to a fixed voltage-to-percentage table calibrated against the original cell's discharge curve. A replacement cell with a slightly different discharge profile can cause the indicator to skip — jumping from 80% to 40% or stalling at one level then dropping suddenly. The fix is to run two or three full charge-discharge cycles in the camera body. After that, the indicator settles and tracks the new cell's curve more accurately. If it still jumps after three cycles, confirm the cell is reaching 4.2V at full charge before assuming a display fault.