About this replacement
Canon G1000 / E2 / ES8000V Series — 7.4V Li-ion Replacement Battery (BP-930)
This is a 7.4V, 4000mAh Li-ion replacement cell for the Canon BP-930 battery pack. It fits the Canon G1000, E2, V75Hi, ES8000V, and over 78 additional Canon camcorder and camera bodies that share the BP-930 form factor. Voltage and cell count match the original specification exactly.
- BP-930 platform compatibility: Canon spread the BP-930 footprint across a large range of camcorders and cameras because the connector pinout, physical housing, and 7.4V two-cell configuration stayed consistent across product generations. One cell fits all bodies that accept BP-930, BP-930E, or BP-930R.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on a Canon body. The BMS handshake completed without rejection, and the protection circuit triggered correctly at the low-voltage cutoff threshold — no false trips during normal draw.
- First charge cycle on Canon bodies: Run the first full charge from within the Canon OEM charger or camera body itself. Canon's battery-remaining display calibrates its percentage mapping during this initial cycle — skipping it often causes the indicator to jump erratically across the first few sessions.
Canon BMS rejecting a new BP-930 cell on first install
Some Canon bodies run an authentication check against the cell's internal resistance and communication handshake on the first power-up. A fresh third-party cell can sit outside the expected resistance window until it has been charged once. If the camera displays a battery warning or refuses to power on, place the cell in the Canon OEM charger and run one full charge before inserting it into the body. That single charge cycle brings the cell's internal state into the range Canon's BMS expects, and the warning clears on next insertion.
Battery percentage jumping or resetting mid-shoot
Canon's fuel gauge maps voltage thresholds from the original BP-930 discharge curve. A replacement cell with a slightly different discharge curve can cause the indicator to jump — for example, reading 60% then dropping to 20% without warning. This is a calibration gap, not a cell fault. To correct it, drain the battery fully until the camera shuts off, then charge to 100% without interruption. After two or three full cycles, the indicator stabilises at the correct thresholds.