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Electric Vehicle Battery Connectors

Designing efficient and reliable electric vehicle (EV) battery management systems and battery pack electronics requires rugged and reliable electrical connectors. With versatile, modular battery interconnect solutions from Molex, engineers can create scalable and customizable electronics packages that work across different vehicle models and battery capacities.

Designing EV Battery Management Systems and Battery Connectors

Engineering the complex battery management systems and battery pack electronics of modern EVs requires a suite of versatile and robust electrical interconnects. Molex automotive connectors meet a variety of needs with modular, flexible solutions ideal for use across various battery layouts and capacities. Connector options include high-current, miniaturized, flexible, sealed and unsealed designs, all built to withstand demanding automotive environments.

For battery management system (BMS) connectivity that supports safety-critical functions, reliability is especially important. Molex connectors with high retention force latches and positive locks provide secure connections for reliable system operation.

For optimizing connections between battery cells and battery pack electronics, rugged and miniaturized Molex interconnects save space without sacrificing reliability. Sealed connectors also deliver consistent connectivity for battery interconnect cables by preventing dust and moisture ingress. 

Molex automotive connectors are tested and certified to automotive industry standards, providing solutions that streamline design work and simplify validation across multiple models, devices and systems.

Featured Products

Battery Management System Connectors

Component reliability is crucial in BMS wiring. Molex connectors provide robust locking mechanisms, high retention forces and excellent electrical connectivity to ensure proper system operation in the harshest automotive environments. These BMS connectors are also certified to rigorous automotive standards and offer modular, customizable designs to enhance flexibility and scalability.

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  Terminal Size Circuits Sealed Wire-to-board Wire-to-wire
ConnTAK50 Connectors 0.50mm 2 to 22     X  
DuraClik Connectors 2.00mm 2 to 15    X  
FFC / FPC Connectors   2 to 120   X  
H-DAC 64 Connectors 0.64mm 2 to 24   X  
Mini50 Connectors 0.50, 1.20mm 2 to 38  X X X
MX123 Connectors 0.64, 2.80mm 49 to 80 X X  
Stac64 Connectors 0.64, 1.50, 2.80mm 8 to 80   X  

Battery Pack Connectors

Interconnect solutions that can be standardized and scaled across different vehicles and battery pack designs are the key to simplifying design and assembly work, controlling costs and ensuring reliable performance. Sealed automotive connectors from Molex provide a range of pitch, circuit count and actuator options, enabling engineers to optimize battery pack layouts across multiple models and battery capacities.

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  Terminal Size Circuits Sealed Wire-to-board Wire-to-wire
CMC / CMX Connectors 0.64, 1.50, 2.80mm 22 to 154 X  X  
MX150 Connectors 1.50mm 2 to 26 X X X

Cell to Battery Pack Connectors

Facilitating more efficient integration of cells and modules within the battery pack, miniaturized connectors from Molex offer reduced weight, compact form factors and rugged features designed to maximize battery performance and lifespan in challenging automotive environments.

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  Terminal Size Circuits Sealed Wire-to-board Wire-to-wire
DuraClik Connectors 2.00mm 2 to 15    X  
Mini50 Connectors 0.50, 1.20mm 2 to 38  X X X
FFC / FPC Connectors   2 to 120   X  

Premo-Flex FFC Solutions

Premo-Flex FFCs terminate to fully mate with a wide range of Molex Easy-On Connectors to provide flexibility across various battery configurations. With a higher circuit count in a smaller footprint, staggered pins and a fine-pitch, they meet the miniaturization needs of cell-to-battery-pack connectors.

Explore Premo-Flex FFC Solutions

Flexible Printed Circuits

With the ability to withstand high-temperatures and a thin lightweight structure that aids in heat dissipation, Flexible Printed Circuits are ideal for applications like EV battery packs where consistent performance in challenging environments is critical.

Explore Flexible Printed Circuits
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Webinar

Rugged and Reliable: Optimizing Vehicle Designs Through Miniaturization

With space and weight so critical in EV design, miniaturized electrical connectors are crucial to optimizing wiring architecture. The challenge for designers is finding interconnects that save space while ensuring reliable operation in harsh conditions. In this on-demand webinar, learn about choosing the right automotive connectors for EV battery wiring and other automotive applications.

Watch the On-Demand Webinar