ESS Manufacturer · Factory-Direct · OEM / ODM Welcome
Energy storage systems, straight from the factory
We manufacture home battery systems, portable power stations and commercial ESS — every unit cycle-tested and safety-checked before it ships. Private label and OEM programs welcome.
Trading Company vs. Source Factory
See the difference
Buying from a trading company and buying from the factory that actually builds your product are two different experiences.
Buying from a Trading Company
- ✕Markup on top of factory price — you pay for the middleman
- ✕No control over QC, batch consistency or quality
- ✕Slow technical answers; they don't design or build anything
- ✕Private label limited to stickers on someone else's product
Buying from OLIFI (Source Factory)
- ✓Factory-direct pricing with no middleman margin
- ✓Full QC: every unit tested before shipping
- ✓Engineers answer technical questions directly
- ✓True OEM/ODM: your brand, custom specs, your packaging
Engineered Systems
Our product range
15+
years manufacturing
20,000 m²
factory floor
8,000
units per month
50+
export countries
100% In-House Production
Quality begins at the source
Design, production and QC under one roof — no outsourcing, no quality surprises.
Cell sourcing
A-grade LFP cells with traceability
Cycle testing
Every unit charge/discharge tested
BMS protection
Multi-layer BMS with OVP/OCP/OTP
OEM / ODM
Your brand, capacity & design
Applications
Where our products work
Home backup
Whole-home power during outages
Outdoor & RV
Portable power for camping & travel
Commercial
Peak shaving & UPS for business
Solar pairing
Daytime charge, night-time discharge
How We Support Your Project
From inquiry to delivery
Tell us your needs
Application, spec, quantity, target market.
Spec & sample
We recommend the right model or custom spec; samples in 7–15 days.
Production & QC
Full testing and QC on every unit before packing.
Ship & support
Export packing, full docs, tracked delivery and after-sales support.
Your brand, our factory
Private label, custom specs and your packaging — volume programs welcome.
Common questions
Everything buyers ask before placing an order.
What battery cells do you use?
Grade-A LiFePO4 cells from tier-1 suppliers with full traceability.
What is the warranty?
Standard 5-year warranty on home ESS; extended programs available for volume orders.
Do you test every unit before shipping?
Every unit completes a full charge/discharge cycle test and BMS safety check.
Can we private-label your ESS?
Yes — custom branding, packaging, capacity configurations and communication protocols are available.
Need a quote or OEM quote?
Tell us the application, spec and quantity — we reply within one business day.
Get a Free Quote