01
Cell testing
Every incoming LiFePO₄ cell is checked for capacity, internal resistance and voltage, then graded. Only cells within a tight tolerance band are matched into a pack, because a pack is only ever as strong as its weakest cell.
OEM Solutions
Our line. Your product.
We design and manufacture LiFePO\u2084 packs in Greater Noida for equipment makers, integrators and product developers. Same cells, same testing, same line that builds our own batteries.
OEM Services
What we can build with you.
Custom battery pack design
Packs engineered around your voltage, capacity, form factor, and duty cycle.
Smart BMS integration
Protection and monitoring tuned to your product’s electrical and thermal envelope.
Private label manufacturing
Your brand, our manufacturing line and quality systems.
Product engineering
Design support from concept through validation and documentation.
Product testing
Performance validation and safety testing before volume release.
Volume manufacturing
Scalable production with a reliable supply chain behind it.
Industries We Support
Built into products across sectors.
Medical equipment
Industrial automation
Mobility
Robotics
Renewable energy
Consumer electronics
Why Zeltron
A manufacturing partner, not just a supplier.
Engineering expertise
Scalable manufacturing
Quality assurance
Dedicated technical support
Reliable supply chain
Technical documentation
Whether you’re building industrial equipment, renewable energy systems, mobility solutions, or specialised electronics, our engineering team works with you to develop batteries that match your technical requirements and performance goals.
Talk to our OEM team
Build better products with Zeltron.
Share your application, target voltage and capacity, form factor constraints, and expected volumes. Our engineers will come back with a technical direction.
How We Build
Six stages, every single pack.
Whether it carries our badge or yours, nothing ships on assumption. This is the line your product would be built on.
02
BMS testing
Each Battery Management System is bench-tested before it goes near a cell. We verify every protection threshold individually: over-charge, deep discharge, over-current, short circuit, over-temperature and cell balancing.
03Assembly
Matched cells are configured, welded and insulated with controlled torque and consistent busbar geometry. Precision here keeps internal resistance low and thermal behaviour predictable across the pack.
04
Quality inspection
A multi-stage inspection covers welds, insulation, terminal integrity, enclosure fit and labelling. Anything outside specification is pulled from the line rather than reworked into a shipment.
05Burn-in testing
Packs are charged and discharged under load to confirm real capacity, charge acceptance and thermal behaviour, so performance is verified rather than assumed before a pack is cleared.
06
Packaging
Cleared packs are labelled with model, voltage, capacity and traceability details, then packed to survive Indian road freight and dispatched with their documentation.
Our Standards
What we refuse to compromise on.
Premium-grade lithium cells
Cell matching before assembly
Intelligent BMS on every pack
Multi-stage quality inspection
Performance validation under load
Safety and thermal testing
Traceability on every unit
Continuous product improvement
Corporate office
Plot No. 22, Ecotech-3, Udyog Kendra-2Greater Noida 201306, Uttar Pradesh, India
Manufacturing plant
Plot No. 99, Ecotech-3, Udyog Kendra-2Greater Noida 201306, Uttar Pradesh, India
FAQ
OEM questions.
Do you manufacture custom battery packs?
Yes. We design and manufacture custom LiFePO₄ packs built around your specific voltage, capacity, form factor, and performance requirements.
Can you manufacture under our brand?
Yes. We offer private-label manufacturing so the finished pack carries your branding, built on our production line and quality systems.
What is the typical OEM engagement?
We start by understanding your technical requirements and application, then move through pack design, BMS integration, prototyping and testing, and finally volume manufacturing.
Do you support bulk supply?
Yes. Bulk supply and volume manufacturing are core to our OEM offering, supported by a reliable supply chain.