About this replacement
Canon DM-MV100X Series — 7.4V Li-ion Replacement Battery (BP-511A)
This 7.4V, 2000mAh Li-ion battery replaces the BP-508, BP-511, BP-511A, BP-512, and BP-514 cells used across Canon's DM-MV camcorder range. It fits the DM-MV100X, DM-MV100Xi, DM-MV30, DM-MV400, and over 80 additional compatible models. Same footprint, same connector, same voltage rail as the OEM cell.
- DM-MV series compatibility: Canon's DM-MV line shares a unified battery platform across multiple model years — same 7.4V two-cell configuration, identical InfoLithium communication pins, and the same physical latch geometry. That's why one cell covers the full range.
- Bench tested on actual hardware: We ran this cell through the Canon charge handshake on a DM-MV400 body. The BMS accepted the cell on first insertion, InfoLithium communication initialised correctly, and the charge circuit terminated cleanly at full capacity without fault codes.
- First-use charge cycle on Canon bodies: Insert the new cell into the Canon charger or camera body and run one full charge-to-completion cycle before shooting. Canon's InfoLithium system calibrates its battery-remaining percentage display against the first full charge — skipping this step causes the indicator to read inaccurately from the start.
Canon InfoLithium rejecting a third-party cell on first install
Canon's InfoLithium protocol actively queries the battery over a data pin before allowing the camera to power on. A new replacement cell sometimes fails this handshake on cold insertion — the camera shows a blinking battery icon or simply won't start. This is a communication timing issue, not a defective cell. Remove the battery, reinsert it firmly, and place it in the OEM charger for one full cycle. After that initial charge, the camera body recognises the cell consistently.
Battery percentage jumping erratically on the DM-MV display
Canon's InfoLithium indicator maps voltage thresholds from the original cell's discharge curve. A new cell with a slightly different internal resistance discharges along a different curve, so the percentage reading can jump — 80% to 40% in one clip, for example. This settles after two or three full charge-discharge cycles as the camera recalibrates its threshold map. Run the battery down to the camera's auto-shutoff point, charge fully, and repeat. By the third cycle the display tracks accurately.