Deligreen Factory Completes 50 Sets of Custom 48V 314Ah Home Energy Storage Battery Packs Bound for Poland OEM Client
Production Line Hits Full Swing for Polish OEM Order
Inside the bright, standardized production workshop of Deligreen Energy Factory, assembly lines are operating at full capacity as skilled technicians complete the manufacturing of 50 sets of customized 48V 314Ah home lithium iron phosphate battery systems, slated for shipment to a long-term OEM partner based in Poland. The turnkey energy storage units deliver a total usable capacity of 16kWh per pack, tailored exclusively to carry the customer’s proprietary brand label for sale via their independent local e-commerce website across Central Europe.
Every workstation along the automated assembly conveyor is staffed by trained production specialists, executing standardized cell placement, insulation fitting, busbar connection, BMS integration and final functional testing step by step. Workers carefully load premium prismatic LFP cells, install internal insulation structures, and assemble white integrated battery cabinets under strict quality control protocols, as captured in on-site production footage. The streamlined flow from raw cell handling to finished product assembly reflects Deligreen’s mature mass-production capacity for residential energy storage solutions.
Core Customized Specifications for the Polish OEM Project

This batch of 48V 314Ah home storage systems is engineered to match the client’s precise market requirements for European residential off-grid and backup power scenarios:
- 16kWh High-Capacity Configuration: 48V nominal voltage paired with 314Ah large-capacity cells forms a robust 16kWh energy storage core, ideal for household solar self-consumption, power outage backup and weekend holiday home power supply in Poland.
- PACE Intelligent BMS Integration: Each cabinet is equipped with premium PACE brand battery management systems, selected jointly with the Polish client for its stable cell balancing, precise voltage/temperature monitoring, and comprehensive overcharge, over-discharge, short-circuit and overheat protection mechanisms.
- Multi-Pack Parallel Expansion Support: The system design retains full compatibility for parallel connection of multiple battery units, allowing end users to expand total energy storage capacity flexibly as household power demand grows, a key feature requested by the European distributor.
- Full OEM Brand Customization: Deligreen delivers complete white-label manufacturing services for this order. All outer cabinet printing, interface panel markings, packaging cartons and user manuals are fully rebranded with the Polish customer’s logo and brand identity, eliminating any Deligreen branding for exclusive local retail on the client’s official website.

Deligreen’s Standout OEM & Customization Capabilities Highlighted
This large-volume Polish OEM shipment serves as a prime demonstration of Deligreen Factory’s all-round customization strengths for global energy storage partners:
1. Flexible White-Label OEM & ODM Service
Deligreen supports full-spectrum brand customization for international distributors, including private logo printing, customized exterior cabinet design, personalized parameter presetting on BMS screens, and tailored packaging solutions. For clients with independent official websites and local sales channels like the Polish partner, the factory can deliver fully anonymized, customer-branded finished products ready for direct market launch.
2. Adaptable Hardware & Component Matching
The engineering team coordinates closely with clients to select matching core electronic components on demand. For this Polish project, the client opted for PACE BMS to align with their existing inverter product lineup, and Deligreen’s production and procurement teams seamlessly integrated the designated BMS hardware without compromising production efficiency or product safety standards. The factory maintains flexible supply chains for mainstream third-party BMS brands to satisfy diverse regional client preferences.
3. Scalable Mass Production Capacity
The automated assembly line shown in the factory photos enables stable batch production of home storage systems. The successful completion of 50 complete sets within the agreed lead time proves Deligreen’s ability to handle medium-to-large bulk OEM orders for European markets, with consistent output quality controlled by standardized assembly workflows and multi-stage pre-shipment testing.
4. Market-Oriented Functional Customization
All product functions are adjustable to meet regional market needs. The parallel expansion function embedded in this 48V 16kWh model was prioritized for Polish residential users, many of whom plan to upgrade their solar storage systems incrementally. Deligreen’s R&D team can modify circuit structures, communication protocols and system parameters to cater to distinct energy usage habits across Europe, Southeast Asia, and North America.
Market Outlook for European Residential Energy Storage
Demand for high-capacity home lithium storage systems continues to surge in Poland and wider Central Europe, driven by volatile grid electricity prices and rapid growth in rooftop solar installations. Local distributors with independent online sales platforms are seeking reliable OEM manufacturers to supply private-label storage products with customizable performance parameters.
Deligreen’s end-to-end OEM manufacturing solution fills this market gap, combining reliable LFP cell technology, flexible component selection, full branding customization, and stable bulk shipment support. The upcoming delivery of the 50-set 48V 314Ah order will further strengthen the factory’s partnership footprint across Poland and neighboring EU countries.
About Deligreen Energy Factory
Deligreen Energy is a professional manufacturer specializing in customized LiFePO4 home energy storage battery packs, with a full automated production line, independent R&D laboratory and strict quality inspection system. The factory focuses on OEM & ODM cooperation for global distributors, offering tailor-made voltage, capacity, BMS, branding and packaging solutions for residential, RV, marine and small commercial energy storage applications. Supported by mature logistics channels to Europe, Deligreen provides one-stop manufacturing services for clients running independent brand websites and offline retail networks worldwide.