Kyesang 52V 25A 1200W electric bike controller with QS-S4 LCD display: a complete solution for controlling and optimizing your e-bike's electric assistance. Designed to manage power supply and regulation, this electric bike controller contributes to a smoother ride, a more progressive response to acceleration and better control of the motor's behavior according to your daily electric mobility needs.
This controller + LCD pack meets the expectations of users looking for a 52V controller capable of supporting up to 25A and a 1200W configuration, while offering a QS-S4 LCD display for clear monitoring of riding information. It is designed for both e-bike controller replacements and maintenance projects on electric bike electronics, with the aim of restoring stable, consistent operation of the assistance system.
To choose the right electric bike controller, we recommend comparing your current installation (battery voltage, current, type of display and connectors) with the product. In case of doubt, it's best to check beforehand, to ensure correct integration and avoid any incompatibility with your electric assistance system.
Scroll down to see detailed technical specifications at the bottom of the sheet ↓
Warranty : 2 years
Description
The Kyesang 52V 25A 1200W controller with QS-S4 LCD display is an electronic solution designed to efficiently control the motorization of a light electric vehicle. It manages the power supply between the 52V battery and the motor, while providing a control interface via a QS-S4 LCD display for clearer day-to-day control. This type of controller is particularly sought-after for refurbishing, replacing or optimizing a drive system on an electric bike, electric scooter or other compatible soft mobility device.
User benefits
Thanks to its 52V rating and 25A nominal current, this controller can handle a power rating of up to 1200W, making it ideal for configurations requiring a stable power supply and precise motor control. The integration of a QS-S4 LCD display provides direct access to the information and settings available via the display (depending on the associated system), improving legibility and ease of use.
Technical specifications
Controller for 52V electrical systems, with a rated current of 25A and indicated power of 1200W. Supplied/associated with LCD display model QS-S4 (display/control). Brand: Kyesang.
Recommended uses
Recommended for replacement of a faulty controller or re-commissioning of a 52V electric propulsion system, particularly on soft mobility-oriented assemblies requiring a 25A controller and QS-S4 LCD display control. Also suitable for workshops and repairers looking for an electronic motor/battery management part for maintenance and reconditioning.
Compatibility
Compatibility explicitly stated: 52V operation and use with QS-S4 LCD display. No other compatibility (motor type, connectors, brands, protocols, sensors, specific controls) is provided: we therefore recommend checking connectors, motor type and system parameters before purchase or installation.
Expert advice
Before installation, check battery voltage (52V) and current (25A) adequacy with motor and harness to avoid overheating or protection tripping. Carefully compare the existing connectors (motor phases, power supply, any sensors, LCD control) and the available space for the controller and QS-S4 display. When replacing, photograph the original wiring and carry out a progressive test (wheel lift) after installation to validate the direction of rotation, acceleration response and LCD display.