A complete drivetrain kit — prebuilt battery box, motor, inverter, charger, DC-DC, VCU, and display — pre-configured and ready to install. You mount the components, follow our wiring diagrams, and plug in the HV harness we've already built.
What's In The Kit
Every component in the kit is selected and tested together, including a prebuilt battery with integrated BMS. The HV wiring harness is built and tested by us before dispatch — you just plug it in. You supply the mountings, fabricate the driven half of the shaft coupler, and follow our wiring diagrams for the low-voltage connections.
Assembled and tested by Somerset EV. The BMS is pre-configured and integrated into the box — cell balancing, charge current limiting, and discharge limiting are all set up.
80 Kw motor, supplied with the drive-end shaft coupler machined to suit. You fabricate the driven half to connect to your gearbox or bell-housing input — we supply the drawing.
Single-phase AC charger with Type 2 inlet lead. Controlled by the VCU via CAN.
Steps the HV bus down to 13.8 V to power the existing 12 V systems on the machine — lighting, solenoids, instrumentation. Replaces the function of the original alternator.
STM32F405-based vehicle control unit loaded with our custom Somerset EV agricultural firmware. Handles throttle mapping, CAN bus coordination between inverter, charger, DC-DC, and BMS, plus safety interlocks. Firmware is open-source and field-upgradeable.
CAN-connected display for the operator — shows state of charge, motor temperature, power draw, and any active fault codes. Designed to mount in or beside the existing instrument panel.
The high-voltage interconnections between battery, inverter, charger, and DC-DC are built by Somerset EV. Everything terminates in plug-and-socket connections — no HV crimping or termination required on your end.
A complete set of schematics covering LV control wiring, CAN bus connections, VCU input/output assignments, and component mounting recommendations. Sufficient detail for a competent farm workshop or agricultural engineer to complete the installation.
What You Need To Supply
The kit covers the drivetrain electronics. Here's what the installation requires from you.
The motor needs to be physically mounted to your machine's engine bay or bell-housing. We supply the motor with the drive-end shaft coupler machined — you fabricate the driven half to suit your gearbox or PTO input shaft, and design or source the motor mounting plate or adapter.
The high-voltage interconnections arrive ready to plug in. You are responsible for the low-voltage control wiring — connecting switches, pedals, sensors, and accessories to the VCU following our wiring diagrams. No HV termination is required on your end.
The battery box arrives prebuilt and tested — you need to site and secure it on the machine. This means fabricating or sourcing a mounting frame or cradle to suit your chassis, and routing the HV harness to reach the other components. The box plugs in; the structural integration is yours.
How It Works
The kit is designed to be installed by a competent farm workshop or agricultural engineer without specialist EV tooling.
Get in touch with your machine make and model. Lead time is typically 1-2 months.
Using our documentation, fabricate the driven half of the shaft coupler and the motor mounting arrangement. Mount the motor, inverter, charger, DC-DC, and VCU to suit your machine's layout.
Wire the throttle pedal, switches, and sensors to the VCU following our wiring diagrams. Connect the CAN bus between components and run the display to the cab. The HV harness just plugs in.
Power up and run through the commissioning checklist in the documentation. VCU parameters can be adjusted over Wifi. We're available by phone or email throughout — and for firmware updates ongoing.