About this replacement
ACME Flycam3 — 3.7V Li-Polymer Replacement Battery (FC3010)
This 3.7V, 600mAh lithium-polymer cell is a direct replacement for the ACME Flycam3 quadcopter. It fits both the Flycam3 body and units labelled FC3010. Capacity figures come from the product data — 600mAh, 2.22Wh.
- Flycam3 and FC3010 platform fit: Both model designations share the same battery bay dimensions, connector pinout, and 3.7V nominal voltage rail. The FC3010 part number covers both variants, so one cell works across the full range.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Flycam3 body. The BMS accepted the cell on the first cycle, voltage held steady through the mid-discharge curve, and the low-battery cutoff triggered cleanly at the correct threshold without hard shutdown.
- Flycam3 charger compatibility: The Flycam3 charges via its dedicated USB port on the battery itself — not through the body. Always plug directly into the battery's charge port. Charging through a third-party multi-slot drone charger at currents above 1C can stress a 600mAh cell and shorten its cycle life faster than the OEM method.
Why the Flycam3 drops connection mid-flight on a new cell
The Flycam3's flight controller monitors cell voltage in real time. If the replacement cell has a slightly higher internal resistance than the original, voltage can sag briefly during motor-speed changes — especially on rapid ascent or tight turns. The controller reads that sag as a low-battery event and may cut motor output or trigger an emergency land sequence. Charging the cell to full before the first flight and allowing the BMS to complete one full cycle typically resolves premature cutoff behaviour.
Flycam3 battery indicator stuck at 100% then dropping suddenly to empty
This happens when the flight controller's fuel gauge hasn't mapped the new cell's discharge curve yet. The indicator is calibrated to the voltage thresholds of a used cell — a fresh lithium-polymer cell holds a flatter voltage curve longer before the final drop. Run two or three full charge-to-cutoff cycles and the controller will recalibrate its percentage display. After those cycles, the indicator should step down gradually rather than jumping from full to empty. If it persists after three cycles, check that the cell resting voltage reads 3.7V or above before flight.