Canon BP-930G GL1 Replacement Battery 7.4V 2200mAh Li-ion

Canon GL1 / GL2 / XHA1 Series — 7.4V Li-ion Replacement Battery (BP-930G)

This is a 7.4V, 2200mAh Li-ion replacement for the Canon BP-930G battery pack. It fits the GL1, GL2, XHA1, and XHG1 camcorders, along with several other Canon models that share the same BP-900 series battery platform. Capacity is rated at 16.28Wh.

• BP-900 series platform compatibility: The GL1, GL2, XHA1, and XHG1 all run on Canon's BP-900 battery platform — same voltage rail, same physical interface, same BMS handshake protocol. A single battery fits all of them because Canon kept the connector and communication line consistent across the range.
• Bench tested on actual hardware: We cycled this cell through the Canon charging circuit and monitored BMS handshake on first insertion. The protection circuit engaged correctly at low-voltage cutoff, and the camera body accepted the cell without throwing an incompatible battery flag after one full charge cycle.
• MiniDV transport draw: The GL1 and GL2 run a mechanical tape transport alongside the recording circuit. Keep the transport clean — a sluggish or dirty tape path pulls extra current from the motor driver, which increases overall draw beyond normal recording load and can cause premature BMS cutoff.

Canon GL1 battery percentage display behaving erratically with a new cell

The GL1's battery indicator maps voltage thresholds to a fixed discharge curve stored in the camera body. A new third-party cell discharges along a slightly different curve than the OEM cell the camera was calibrated against. This causes the indicator to jump — sometimes reading full, then dropping suddenly to one bar. The camera is not malfunctioning; it is reading voltage accurately but mapping it incorrectly. Run two full charge-discharge cycles through the camera body and the display will stabilise as the BMS learns the new cell's curve.

Camera showing "no battery" or rejecting the cell on first install

Canon camcorders in the BP-900 platform perform a BMS authentication check on first insertion. If the replacement cell ships in a partial state of charge, the camera may not complete the handshake and will display a no-battery or incompatible warning. Remove the battery, place it in the OEM Canon charger or charge it via the camera body, and let it complete one full charge cycle before inserting it again for use. After that initial cycle the camera will accept the cell on every subsequent insertion. If the error persists after a full charge, check that the three contact pins on the battery base are clean and not bent.