34Amp Hour of 24V rechargeable lead-acid battery pack. Made up from 4 12V batteries secured in the chassis. Their mass contributes to kart's low center of gravity.

Right- DC 24V 75Amp reversing battery motor controller in an Aluminium casing. The motor controller is the heart of the electrical drive system and delivers the variable 0 to 24V reversible polarity power supply to the drive DC electric motors.

Below - 2 off 24V 250W electric motors - commonly available as scooter spares and inexpensive. 

electrical and control system

See the detailed drawings for the circuit diagram.

The principal elements of the electrical drive system are the DC battery motor controller, the DC electric motors and the rechargeable lead-acid batteries. In addition the motor speed controller requires low power speed "demand" signals (from the accelerator potentiometer). There is also an on/off switch, a reverse switch and optionally a battery condition monitor to let you see the stage of charge of the batteries. The DC battery motor controller is at the heart of the system - it takes the fixed nominal 24V from the battery pack and outputs a variable 0 to 24V to the motors. This delivers the kart's variable speed. By reversing the polarity to the electric motor the speed controller also provides the reverse drive. The motor controller suggested in the plans can be substituted by other similar current rated DC battery motor controllers - you choose.

The 24V 250W DC electric motors are commonly available as electric scooter spares and are easily mounted and connected to the drive transmission by roller chain.

Standard sized rechargeable lead acid batteries are used. These are manufactured by a large range of suppliers and can provide several hundred charge cycles during their lifetime. You'll also need a good multi-mode battery charger to keep the batteries in good condition.


Follow the links for printable pdf sheets showing the overview with list of parts and all the part shapes and sizes.

Remember to check out our Safety Guidance - always use your kart responsibly.

Component Info

Electric Motors

Speed Controllers


Chains & Sprockets


Ball & Sockets Joints



Shaft Collars

Shaft Steel

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Click below for Plans pdf Sheets - NOTE password for all kart pdf sheets is: "kart"

Overview with List of Parts