J&P52V 25A 800W-B LCD controller: the central element for effective control of your electric bike's assistance. Designed to manage the motor's power supply and regulation, this e-bike controller contributes to a more controlled response to acceleration, more stable energy distribution and smoother motor operation on your everyday rides.
With its format dedicated to 52V systems and its 25A rating for an advertised 800W configuration, this controller for electric-assist bicycles is aimed at users looking for an electronic part adapted to an electric mobility drivetrain, whether for refurbishment, controller replacement or optimization of assistance management while respecting the original assembly.
For reliable installation, we recommend careful comparison of system voltage, connectors and original parameters before replacement. In case of doubt, identifying the assembly (motor, battery, LCD display, harness) will help you choose the right 52V controller.
Scroll down the page to see detailed technical specifications at the bottom ↓
Warranty : 2 years
Product overview
The J&P 52V 25A 800W-B controller with JP LCD interface is an essential electronic component for controlling and managing the assistance of an electric bike or soft mobility device equipped with a 52V system. It distributes energy between the battery and the motor for responsive assistance and stable operation, while centralizing information and settings via a JP-compatible LCD display.
User benefits
This 52V controller makes it possible to replace a faulty controller or optimize an existing configuration while maintaining consistent management of electric assistance. With its announced 25A rating and JP LCD compatibility, it contributes to a more controlled ride thanks to structured assistance control, improved readability of control information via the display, and integration adapted to J&P systems designed to operate with a JP display.
Technical specifications (data supplied)
Nominal voltage: 52V.
Nominal current: 25A.
Power rating: 800W-B.
Type: controller for electric assistance system.
Display / interface : LCD JP (intended for use with JP type display).
Brand : J&P.
Recommended uses
This controller is recommended for maintenance, replacement or recommissioning of an electric bicycle requiring a 52V controller, as well as for assembly and repair work on electrification systems using a JP LCD display. It is particularly suitable for work on assistance electronics (motor management, assistance control, link with display) when a 52V equivalent is required.
Known compatibilities
Compatibility indicated with JP LCD display. No other compatibility (motor, connectors, third-party brands, protocols, sensors, electric brakes) is specified in the information provided.
Information not provided
Weight, dimensions, exact type of connectors, case format, available settings and motor compatibility details (front/rear wheel motor, mid-drive, pedal sensor, speed sensor) are not given. To avoid installation errors, these items should be checked on the controller to be replaced or in the technical information of the original system.
Expert advice
Before purchasing, check your battery voltage (52V) and compare the current (25A) and expected power with your configuration to avoid inappropriate assistance behavior. Also check the compatibility of the display: the words "LCD JP" must correspond to your current display. When replacing, carefully check the connectors (number of pins, coded pins, color/identification of harnesses) and the condition of the wiring (oxidation, overheating, false contacts). After installation, carry out a progressive test (with the wheel raised, followed by a low-assistance road test) to check that the motor, display and safety devices are working properly before normal use.