IKEGAMI HC-400 Replacement Battery 14.4V 10400mAh Li-ion

IKEGAMI HC-400 / HL-45 / HL-57 / HL-59 Series — 14.4V Li-ion Replacement Battery

This is a 14.4V, 10400mAh (149.76Wh) lithium-ion battery for IKEGAMI professional broadcast cameras. It fits the HC-400, HL-45, HL-57, and HL-59 series camcorders used in field production and documentary work. Voltage and form factor match the OEM battery slot directly.

• HC-400 / HL series platform fit: These models share a common 14.4V power rail and the same battery bay geometry. The BMS communication protocol is consistent across this series, so one cell design works across all four listed bodies without wiring or connector changes.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on a 14.4V broadcast camera load. The BMS handled inrush current on start-up without tripping and maintained stable voltage output across the discharge curve under combined sensor and recording processor draw.
• First-cycle acceptance on broadcast bodies: On first install, run one complete charge cycle through the OEM charger or the camera body's internal charging circuit. Some IKEGAMI bodies require this to map the new cell's discharge curve to the battery-remaining display correctly.

Why the HC-400 battery indicator reads erratic on a new cell

The HC-400 maps remaining battery life against a stored voltage-threshold profile from the OEM cell's discharge curve. A new third-party cell has a slightly different curve, so the body's fuel gauge algorithm misreads the voltage at mid-charge states. This shows up as the percentage jumping — say, dropping from 60% to 30% without heavy draw. One full charge-discharge cycle through the camera body recalibrates the threshold mapping and stabilises the readout.

Camera body warm during sustained video recording on a new battery

During continuous video recording, the HC-400 draws current simultaneously from the sensor, image processor, viewfinder, and any onboard recording media. This combined load is higher than still shooting and generates heat at both the cell and the body's voltage regulation circuit. If the body feels warm after extended takes, that is normal under sustained load — it is not a cell fault. Check that the battery terminal voltage at rest is above 13.0V after a session; if it drops below that, the cell is at the low end of its discharge and needs recharging before the next take.