This Y-harness is designed to parallel LTC sense lines for use with the Dilithium BMS Controller, allowing multiple battery modules to be electrically grouped and monitored as a single cell group.
Because the paralleling occurs at the LTC signal level, this harness is not limited to any specific battery type. It can be used with any modules or cells, provided they are properly matched and safely paralleled at the pack level.
This enables flexible pack design with parallel configurations (2P, 3P, 4P, and beyond) while maintaining clean and accurate voltage monitoring through the Dilithium BMS.
Plug-and-Play Tesla Integration
When used with our Tesla-specific components, this harness becomes part of a fully plug-and-play system for Tesla Model S/X modules:
These components eliminate the need for custom wiring, making parallel Tesla module packs straightforward to assemble and service.
Features
- Parallels LTC sense lines for multi-module grouping
- Works with any battery modules (not Tesla-specific)
- Compatible with Dilithium BMS system
- Enables scalable parallel configurations (2P, 3P, 4P+)
- Clean, repeatable wiring solution
Notes
- This harness parallels BMS signal lines only — main power connections must still be properly paralleled externally
- All modules must be voltage-matched before paralleling
- BMS will read paralleled modules as a single cell group
- System limits depend on overall pack design and BMS configuration
Application
Ideal for EV battery pack builds requiring parallel module configurations with simplified BMS wiring. Suitable for custom battery systems of any chemistry, as well as plug-and-play Tesla Model S/X module setups when used with EV West harnessing.
