Full Custom Design-and-Build Services 

Hardware Design and Assembly


LHP Specializes in prototyping and low-volume solutions for the automotive industry and complementary applications. This includes handling low and high-voltage systems for fully-electric and hybrid systems.


LHP offers full custom design-and-build services for the AD/DC Junction box, high-voltage harnessing, and battery pack integration.

Including; complete documentation, schematics, engineering drawings, and test plans through our certified and experienced engineers and technicians. 



LHP can Help You... 


  • Customize prototype components

  • Establish reliable solutions

  • Perform end-to-end project management

  • Support both hardware and software components 


LHP Has Expertise In... 

  • Advanced Electrical Design

  • Battery Pack Integration

  • BMU Data Aggregation

  • Build-to-Print services

  • Circuit Board Prototyping

  • Design and Build AC/DC Junction Boxes

  • Low-Voltage and High-Voltage Harnessing

Battery Assembly and High-Voltage Harnessing Solutions 

Our dedicated and experienced team has expertise in the design and development of customized electronic components, harnesses, junction boxes, and battery pack integration. We can leverage our in-depth knowledge of embedded controls technology and hands-on design and assembly experience to provide a full suite of EV/High-Voltage Services.


LHP has expertise in aggregating battery management unit messages to convert them to J1939 for ease of customer use. We capture data from the BMCs and aggregate all messages from different battery packs

Software: LHP has experience writing high-level battery management controllers for products in hybrid electric and power generation through fully electric vehicles.


Hardware: The LHP Hardware team is experienced and certified at handling high-voltage systems for fully electric and hybrid systems. 





Custom Hardware Connectivity to Drive Your System

When you focus on your product development, why should you worry about your hardware interfaces?  Count on LHP to deliver high-quality, full-capability hardware interfaces.

  • Load boxes to meet your test needs

  • Wire harnesses to connect your system

  • Breakout boxes to give you access to all of your signals

  • Extender boards to bring your hardware out to you

  • Adapters to provide compatible interfaces

  • Signal interfaces to drive the inputs and outputs you need

As a systems solutions company, LHP recognizes the need for our customers to have quick-turn hardware interfaces. Engineering development and test efforts require accessibility and signal manipulation.  LHP meets their various needs with wire harnesses, breakout boxes, adapters, extenders, load boxes, signal conditioners, and other hardware interfaces. From build-to-print to complex system designs, you can count on LHP to provide interfaces to connect and terminate all of your hardware.


  • Prototyping

  • Automotive Applications

  • Test Cell Interfaces

  • Custom Design Harnesses

  • One-Off and Low Volume

  • Quick-Turn Test Systems

  • Design Support/Rework/Repair

How We Work 


Our comprehensive approach to hardware design and assembly will position you to produce products more efficiently, reliably, and successfully. We are known for our interdisciplinary approach and ability to create a customized plan that fits your unique situation, needs, and goals. 


While each project is different, we follow a standard six-phase approach to get you up and running as fast as possible.


Consultation: One of our experienced engineers will meet with you and develop a deep understanding of your specific challenge or opportunity.


Proposal: Our proposal presented as a statement of work (SOW) will provide a comprehensive description of our customized solutions and commitment to meet your requirements.


Design: We will generate all the necessary designs and documentation using the latest tools to ensure your complete satisfaction- within budget, ahead of schedule, and with superior quality.


Review: Prior to manufacturing, we will strive to reach a full agreement and answer any remaining questions you may have.


Delivery: our ISO 9001 certified processes ensure that quality is built in from procurement to final inspection.


Support: You can be assured that we will be available to support your ongoing needs through revision control and product life-cycle management.



From performing diesel-to-electric vehicle conversions to building high-voltage propulsion battery packs, power inverter test systems, and electric vehicle supply equipment solutions, LHP can help automotive R&D centers, manufacturers, suppliers, and national labs prepare for whatever the future may bring to the industry. 



Overwhelmed and unsure where to start?
Contact LHP today! 






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