Panasonic CGA-S003 Compatible Battery 3.7V 530mAh

Panasonic SV-AS10 Series — 3.7V Li-ion Replacement Battery (CGA-S003)

This 3.7V, 530mAh lithium-ion cell replaces the CGA-S003 battery used in Panasonic SV-AS10-W, SV-AS10-G, SV-AV50PP-S, SV-AV50T, and compatible models. It powers the imaging sensor, processor, and onboard storage during photo and video capture. Voltage and cell dimensions match OEM spec: 54.00 × 35.00 × 4.00mm.

• SV-AS10 and SV-AV50 compatibility: These models share the same 3.7V single-cell power rail and CGA-S003 form factor. The connector pinout and cell dimensions are identical across the range, so one cell fits all listed models without modification.
• Bench tested on actual hardware: We cycled this cell through the SV-AS10 body using an OEM charger. The camera's BMS accepted the cell after one full charge cycle and reported battery status without fault. Discharge curve tracked consistently through to low-battery cutoff.
• First-use charge cycle on SV-AS10: Insert the new cell and run one full charge via the OEM charger or camera body before shooting. The SV-AS10 BMS maps its battery-remaining display against the discharge curve — skipping this step can cause the indicator to read inaccurately from the first use.

Battery percentage jumping erratically on the SV-AS10 display

The SV-AS10 maps its battery indicator against voltage thresholds calibrated to the original cell's discharge curve. A new replacement cell has a slightly different curve profile until the BMS has logged at least one full cycle. This causes the display to jump between percentage bands rather than step down smoothly. Run one complete charge-to-cutoff cycle through the camera body and the indicator will stabilise.

Flash not fully recycling between shots on the SV-AV50 series

The flash capacitor on the SV-AV50 draws a short high-current burst from the cell each time it recharges between shots. As cell voltage sags toward 3.4V near end of charge, recharge time increases noticeably. This is normal cell behaviour — it is not a fault in the replacement unit. If recycle lag appears early in a charge cycle, check that the cell reached a full 4.2V charge before the shoot.