Sanyo DB-L50 Xacti VPC-WH1 Compatible Battery 3.7V 1400mAh

Sanyo Xacti VPC-WH1 / DMX-HD2000 — 3.7V Li-ion Replacement Battery (DB-L50)

This is a 3.7V, 1400mAh Li-ion replacement for the Sanyo DB-L50 battery cell. It fits the Xacti VPC-WH1, DMX-HD2000, VPC-HD1010, VPC-HD1000, and nine additional Xacti camcorder models. Slot it in when your original cell no longer holds a charge or when you need a second battery on a long shoot day.

• Xacti camcorder compatibility: These Xacti models share the same DB-L50 battery slot, connector pinout, and BMS handshake protocol. The voltage rail sits at 3.7V nominal across the entire lineup, so one cell type covers all of them without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Xacti platform and confirmed the BMS accepted the cell without fault codes. Voltage at full charge measured 4.19V, and the BMS cutoff triggered cleanly at the low-voltage threshold before the cell entered an unsafe depth of discharge.
• First-install charge cycle on Xacti bodies: On first use, run one full charge cycle through the OEM charger or the camera body itself before heavy shooting. Some Xacti BMS firmware maps battery-remaining percentage against a learned discharge curve — skipping this step causes the indicator to read erratically until a full cycle is completed.

Dead battery indicator showing on a partially charged DB-L50 replacement

The Xacti body reads remaining charge by tracking voltage thresholds, not coulomb counting. A new third-party cell has a slightly different discharge curve than the OEM cell the firmware was calibrated against. This makes the camera interpret mid-range voltage as critically low and throw the dead-battery indicator early. Run one full charge-to-discharge cycle inside the camera body and the indicator calibration will stabilise.

Battery percentage jumping or resetting during video recording

Sustained video recording on the Xacti platform draws more current than still photography — the sensor, image processor, and stabilisation circuit all run simultaneously. This combined draw causes momentary voltage sag on the cell, which the firmware misreads as a sudden drop in charge level. The percentage display then jumps down before recovering once current draw eases. If the behaviour is severe, verify the cell is at a full 4.2V before starting a recording session.