48V 26A E-Bike Controller
Description
eBike Controller 36V–48V 26A – Sine Wave with Self-Learning for 500W–1000W Brushless Motors
Intelligent sine wave controller with 12 MOSFETs, 36V/48V compatibility and 26A maximum current, designed for 500W–1000W brushless gearless motors. Delivers smooth start-up, reduced noise, regenerative braking and 3 operating modes — the ideal solution for upgrading or replacing controllers on mid-power conversion kits.
The 26A controller sits at the optimal point in the All4eBikes range for 500W and 1000W kits: enough current for firm torque and fast acceleration, compact enough for standard frame mounting without an additional heatsink. Sine wave technology generates a continuous sinusoidal signal to the motor, eliminating the vibration and noise typical of square wave controllers at the same power levels.
Technical Specifications — 26A 36V–48V Controller
Electrical Parameters
Operating Modes
Supported Connections
Why 12 MOSFETs at 26A — the optimal power-to-size ratio
At 26A maximum current, the 12-MOSFET configuration delivers the optimal balance between current capacity, passive thermal dissipation and casing dimensions. Each MOSFET handles approximately 2.2A, keeping operating temperature lower and extending component lifespan compared to more heavily loaded configurations. The black anodised aluminium casing acts as a passive heatsink — no fan, no moving parts.
Regenerative braking at 36V and 48V
The controller supports regenerative braking at both compatible voltages (36V and 48V), configurable in 4 levels from the display: off, weak, standard, strong. On urban routes with frequent braking or routes with long descents, regenerative braking can extend battery range by 5–12% per charge cycle.
Phase self-learning — error-free installation
The self-learning procedure identifies the correct motor phase wire order in 30 seconds, completely eliminating the risk of incorrect wiring. Without self-learning, there are 6 possible phase combinations — self-learning tests them automatically and permanently stores the correct one.
Which Kits It's Recommended For
500W MTX Kit
A sine wave upgrade with regenerative braking for the 500W MTX kit — a direct replacement at 48V, with 4A more headroom than the standard 22A controller.
1000W MTX Kit
A 36V option for the 1000W MTX kit on 36V battery systems, or a more compact replacement compared to the standard 25A controller at 48V.
Custom DIY Builds 36V–48V
Ideal for DIY projects or upgrades with 500W–1000W hub motors at 36V or 48V where sine wave and regenerative braking are needed in a compact format.
Recommended Batteries
At 26A maximum current, the battery must have a BMS rated for at least 25A continuous discharge. Our recommendations:
36V 20.5Ah Downtube Battery
The extended-range option for 36V systems — 30A BMS, ~738Wh, mounted on the down tube. View the 36V 20.5Ah battery.
48V 17.5Ah Downtube Battery
The compact and balanced option for 48V systems — 35A BMS, 50–80 km range. View the 48V 17.5Ah battery.
Installation and Wiring
Installation Steps
- Connect the motor phase wires (3 wires) to the controller outputs
- Connect the Hall sensor connectors from the motor
- Connect the battery — observe polarity
- Connect the display, throttle, PAS sensor and brake sensors
- Run the self-learning procedure with the wheel lifted before first use
Safety and Maintenance
- Do not cover the casing — passive thermal dissipation requires airflow
- Periodically check phase connector tightness
- Never exceed the BMS discharge limit of the associated battery
- Operating temperature: −40°C to +80°C
