Grundig LC-280 Replacement Battery 7.4V 4400mAh Li-ion

Grundig LC-280 / LC-380HE / LC-835E Series — 7.4V Li-ion Replacement Battery

This 7.4V, 4400mAh lithium-ion battery fits the Grundig LC-280, LC-380HE, LC-835E, LC-855HE, and nine additional Grundig camera models sharing the same battery bay. It replaces the original cell when capacity has faded and the camera no longer holds a full charge. Voltage and cell format match the OEM specification exactly.

• LC-280 and LC-380HE series compatibility: These models share a common battery bay geometry, contact pitch, and 7.4V nominal voltage rail. The BMS handshake protocol is consistent across the series, so one cell format covers all listed models without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a Grundig LC-series body. The BMS accepted the cell without error flags, and cell voltage held stable across the discharge curve from 8.4V full charge down to the 6.0V cutoff threshold.
• First-install charge cycle on Grundig bodies: Run the first charge from inside the camera body using the OEM charging port rather than an external charger. Grundig's battery-remaining display calibrates its percentage mapping during the first in-body charge cycle — skipping this step can cause the indicator to read inaccurately from the start.

Camera battery percentage jumping erratically after fitting a new cell

The Grundig LC-series camera maps battery percentage by reading cell voltage against a stored discharge curve from the previous cell. A new 4400mAh cell has a flatter discharge curve than an aged original, so voltage readings at mid-charge don't land on the expected thresholds. The indicator can jump from 80% to 40% or freeze at a fixed value. One full in-body charge cycle resets the curve mapping and corrects the display.

Shot count lower than expected when shooting with flash enabled

Rated shot counts are calculated under controlled conditions without continuous flash use. Each flash cycle draws a capacitor recharge current spike that adds significant load on top of sensor and processor draw. On the LC-280 and similar bodies, sustained flash shooting can pull the effective shot count well below the quoted figure. To extend usable charge between swaps, shoot in available light where possible and let the flash recycle fully before firing again.