Lumicron DV-5 Replacement Battery 3.7V 1050mAh Li-ion

Lumicron DV-5 / LDC-4013 / LDC-4230 / LDC-626Z3 — 3.7V Li-ion Replacement Battery

This is a 3.7V, 1050mAh Li-ion cell built to replace the factory battery in Lumicron compact digital cameras including the DV-5, LDC-4013, LDC-4230, and LDC-626Z3. It fits the same physical slot and uses the same contact layout as the original. Capacity is 1050mAh (3.89Wh) — matched to the product data, not inflated.

• Shared platform across DV-5, LDC-4013, LDC-4230, LDC-626Z3: These Lumicron models draw from the same 3.7V single-cell platform, sharing the same physical cell dimensions (53.20 × 35.30 × 7.10mm) and connector orientation. One cell format covers the full group.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a calibrated test rig. The BMS held the voltage rail steady during flash recharge events and did not trip on the current draw spike that autofocus and image processing pull simultaneously.
• First-use charge cycle on these camera bodies: Insert the new cell and charge it fully inside the camera body before shooting. Some Lumicron bodies need one complete in-camera charge cycle to map the cell's discharge curve correctly — skipping this step causes the battery indicator to read inaccurately from the first shot.

Flash output dropping mid-shoot on a new camera battery

The flash capacitor in compact cameras like these draws a sharp recharge current after every shot. As a Li-ion cell ages or sits at a lower state of charge, internal resistance rises and the capacitor takes longer to reach full charge voltage. The result is flash firing at reduced power — photos look underexposed even though the battery indicator still shows charge remaining. A new cell with low internal resistance restores fast capacitor recharge. If you see this on a fresh cell, check that cell voltage at rest is above 3.6V before insertion.

Battery percentage jumping erratically on the Lumicron display

Lumicron's battery indicator maps voltage thresholds to percentage steps. A new third-party cell has a slightly different discharge curve shape than the OEM cell the firmware was calibrated against. The indicator can jump from 80% to 40% in a handful of shots, then stabilise. This is a firmware calibration mismatch, not a faulty cell. Run one full charge cycle inside the camera body — charge to 100%, shoot until the camera shuts down, then charge again. After that cycle, the indicator tracks the actual discharge curve far more closely.