
Components Compatible with VOTOL EM50-4 (LIN)
Controller72V40ASinewave
VOTOL EM50-4 is a compact 48-72V sinewave controller with 50A rated battery current and 80A boost DC current. Suited for 1-2kW PMSM/BLDC motors — commonly paired with QS90 1000W mid-drive motors in e-scooter builds. Features 18-MOSFET design, flux weakening, IP67 waterproofing, and LIN communication. Uses VOTOL's 'Old Version' EM/SV-series connector architecture: 3 flush Mini-Fit Jr headers + screw terminals. Programmable via PC.
26 components are compatible with the VOTOL EM50-4 (LIN), including 19 batteries, 4 hub motors, 3 displays.
19 Batteries4 Hub Motors3 DisplaysFrequently Asked Questions
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Start a new build with the VOTOL EM50-4 (LIN) and pick from 26 compatible components.

























