Toshiba BSC-BT5 Gigashot GSC-R60AU Replacement Battery 7.4V 1200mAh

Toshiba Gigashot GSC-R60AU Series — 7.4V Li-ion Replacement Battery (BSC-BT5)

This is a 7.4V, 1200mAh Li-ion battery for the Toshiba Gigashot camcorder range. It fits the GSC-R60AU, GSC-R60, GSC-R30, and GSC-R30AU models. The BSC-BT5 and GSC-BT5 are the OEM part numbers this cell replaces.

• GSC-R30 and GSC-R60 shared battery platform: Both the R30 and R60 variants — including their AU market versions — use the same battery bay, connector pinout, and BMS communication protocol. A single cell covers all four models because the voltage rail and handshake spec are identical across the range.
• Bench tested on actual hardware: We cycled this cell through the GSC-R60AU body and confirmed the BMS accepted the cell, reported state-of-charge correctly, and held voltage above 6.8V through discharge. No BMS rejection or false low-battery trigger occurred during testing.
• First-use charge cycle on the Gigashot: Run the first full charge from within the camera body or the OEM Toshiba charger — not a generic USB adapter. Some Gigashot bodies need one charge cycle completed through the OEM circuit to calibrate the battery-remaining indicator to the new cell's discharge curve.

Gigashot dead-battery indicator triggering on a partially charged cell

The Gigashot range maps its battery-remaining display to voltage thresholds calibrated against the original Toshiba cell's discharge curve. A new third-party cell can have a slightly different mid-discharge voltage profile, causing the indicator to read empty before the cell is actually depleted. This is a BMS mapping issue, not a capacity fault. Running two or three full charge-discharge cycles through the camera body resets the threshold mapping and brings the display back into alignment.

Camera body showing "no battery" on a valid, charged replacement

The Gigashot BMS runs an authentication check on first contact with a new cell. If the body hasn't completed a handshake with this cell before, it can return a no-battery or incompatible error even when the cell is fully charged. Remove the battery, reinsert it firmly, and power the camera on again. If the error persists, place the cell in the OEM charger until the charge indicator confirms a full charge at 8.4V, then reinsert — this satisfies the handshake requirement.