About this replacement
JVC CU-VH1 / GR Series — 7.4V Li-ion Replacement Battery (BN-V416)
This 7.4V, 2200mAh Li-ion cell replaces the BN-V416 battery used in JVC compact camcorders including the CU-VH1, CU-VH1US, GR-33, GR-4000US, and over 230 compatible models. It matches the original voltage rail and connector footprint exactly. Capacity is drawn from product data at 2200mAh (16.28Wh).
- CU-VH1 and GR-series compatibility: These models share the BN-V416 connector spec and 7.4V dual-cell Li-ion architecture. The BMS handshake across this range expects the same voltage thresholds and discharge curve, so one cell fits the full lineup without modification.
- Bench tested on actual hardware: We cycled this cell through a full charge and discharge on compatible JVC hardware. The BMS accepted the cell without rejection flags, held charge correctly across the discharge curve, and hit cutoff at the expected low-voltage threshold.
- First charge cycle on JVC camcorders: Perform the initial charge directly inside the camcorder body using the OEM charger connection — not a third-party external charger. Some JVC BMS firmware requires an in-body charge cycle before the battery-remaining indicator maps correctly to the new cell's discharge curve.
Why the CU-VH1 shows a dead battery indicator on a partially charged replacement cell
JVC's battery-remaining display reads voltage thresholds, not actual charge state. A new third-party cell has a slightly different discharge curve than the aged OEM cell the BMS calibrated against. The camcorder maps those voltage points to its indicator segments, and when the curve doesn't align, it reads the cell as depleted before it actually is. Running one full charge-discharge cycle inside the camcorder body resets the threshold mapping and brings the indicator back into accurate range.
Battery percentage jumping erratically mid-recording on the GR series
During sustained video recording, the GR-series sensor and image processor pull combined current that causes voltage to sag momentarily on a new cell. The BMS interprets each sag as a different state of charge, which forces the display to jump between levels. This is not a fault — it's the indicator reacting to load-induced voltage fluctuation. Charge the cell fully to 8.4V before a recording session and the sag window narrows enough to stabilise the readout.