Avetlink AK 30A Brushless Controller with Battery Protection
A controller should power your vehicle and help protect its components. For many e-trike owners, the battery is one of the most expensive parts to replace.
The Avetlink AK 30A brushless controller combines a durable, heat-resistant design with electronic protection features to support reliable operation and help protect your battery.

Automatic Low-Voltage Protection
Deep discharge can damage batteries and shorten their service life. The AK controller automatically detects the system voltage and selects the corresponding low-voltage cutoff: 41V, 51V, or 61V.
As the battery reaches its low-voltage limit, the controller gradually reduces power and then cuts output. This helps prevent excessive discharge, reduce the risk of permanent battery damage, and extend battery service life.

Why the Avetlink AK Controller Is Built to Last
Thicker, Heat-Resistant Wiring
The Avetlink AK 30A controller uses 3 mm² heat-resistant wiring, with a larger conductor cross-section than 1.5 mm² or 2 mm² alternatives. This helps reduce electrical resistance and heat buildup under a full 30A load, lowering the risk of overheating and melted insulation.
Precise Battery Protection
Built-in undervoltage protection helps prevent excessive discharge in compatible lead-acid and lithium battery systems. The 41V / 51V / 61V cutoff points are carefully calibrated to provide accurate low-voltage protection when matched to the battery configuration.
Improved Heat Dissipation
The aluminum housing has tall cooling fins and provides 30% more efficient heat dissipation than the plastic-cased alternatives described in the original comparison. This helps control heat during operation and supports reliable performance.
Coordinated Dual-Motor Protection
In dual-drive mode, protection functions work together across both motors. If the system detects a fault or a low-battery condition, it shuts down both motors together.
Reliable Protection for Daily Travel
The Avetlink AK controller combines heat-resistant construction, battery protection, and coordinated motor shutdown to help protect your vehicle’s components. It is a practical choice for riders who want dependable operation and reduced risk of battery damage.