Cell sourcing & matching
Identify suitable branded cells, match capacity/current class, and align datasheet and supply assumptions.
Engineering capabilities
From cell sourcing to production-ready battery packs.
Use brand cells, SLA modules, or ESS platforms as a starting point. The project process aligns design, validation, documentation, and commercial scope around the intended system.
Core capabilities
The work between a catalog item and a production-ready definition.
Capability scope is confirmed project by project. These are the main areas used to evaluate and deliver B2B battery programs.
Custom design & development
Translate load, charging, environment, volume, and schedule requirements into a complete product specification.
BMS & communications
Define protection behavior, CAN or RS485 options, I/O, monitoring, and equipment-level control assumptions.
Mechanical integration
Review the installation envelope, enclosure, connectors, mounting, cable routing, service access, and weight constraints.
Prototype to production
Move from prototype builds to production release with clear ownership, acceptance criteria, and change control.
Testing & certification coordination
Align sample evaluation, lab testing, and certification coordination with the quoted configuration.
Project workflow
A shared path from requirements to release.
The objective is to reduce assumptions before samples and keep engineering, quality, procurement, and supply teams aligned to the same baseline.
Requirements review
Load profile, charging source, installation environment, interfaces, qualification, volume, destination, and timing.
Cell or platform selection
Choose branded cells, SLA upgrade, ESS module, or custom pack path and document the gaps.
Configuration definition
Align electrical limits, mechanics, communication, documents, testing, and commercial assumptions.
Sample and validation
Build the agreed evaluation scope and capture results against defined acceptance criteria.
Production release
Confirm the configuration for production, traceability, supply, and future updates.
What to prepare
A concise requirements package is enough to begin.
The information does not need to be complete. Early visibility into the system and program constraints helps the team identify the most important open questions.
System voltage
Continuous and peak load
Target runtime or energy
Preferred cell or chemistry
Operating environment
Mechanical envelope
Communication and I/O
Volume and schedule
In-house vs partner
We distinguish work performed by Egroupinus teams from partner-supported engineering, manufacturing, and lab services.
U.S. logistics support
New Jersey sales and warehouse coordination help U.S. buyers manage samples, shipping documents, and delivery planning.
Document support
We match certification and test files to the manufacturer, model, revision, and project requirements.
Component examples
BMS, connector, PCM, and holder examples
Reference visuals show BMS, connector, PCM, and fixture families used in OEM battery-pack discussions.
Use these examples to discuss component and architecture options. Board selection, thresholds, protocols, connectors, fixtures, and standalone availability are confirmed for each project.
Start a project
Bring the system requirements. We’ll help define the cell, module, or pack path and next review steps.
Share your target voltage, load profile, environment, volume, and schedule. Our team will follow up with the next technical and commercial questions.