High-capacity LiFePO4 battery systems and backup power units engineered for industrial, residential, and recreational off-grid power systems.
Established in 2010, Shenzhen Grenergy Technology Co., Ltd. is a recognized high-tech enterprise specializing in the research, development, and manufacturing of premium lithium batteries, energy storage systems (ESS), motive power batteries, and smart Battery Management Systems (BMS).
With over a decade of dedication to energy transition and safety, Grenergy has positioned itself as a critical player in the global renewable energy supply chain. We focus on providing highly reliable alternatives to lead-acid batteries, long-lifecycle residential wall-mounted energy systems, high-capacity mobile home storage units, trolley-type outdoor power stations, and custom engineered smart battery packs for global industrial applications.
Over a decade of continuous improvement, technological refinement, and customer-first values.
Since inception, Grenergy has focused on developing sustainable, high-safety energy solutions. Our history is characterized by consistent technological adaptation, progressing from simple battery packs to integrated multi-kilowatt-hour residential powerwalls and smart, cloud-connected off-grid power systems.
Established in Shenzhen, China. Focused on basic LiFePO4 battery pack integration and local engineering custom assemblies.
Obtained ISO9001 and ISO14001 certifications. Began exporting high-performance lithium energy solutions to Europe and North America.
Launched the home energy storage wall-mounted power walls and built robust BMS R&D teams to integrate smart CANbus communication.
Upgraded our 10,000 sqm production space with automated laser welding, dynamic aging lines, and implemented $3 million USD product liability coverage.
Underpinning our manufacturing philosophy is a commitment to cell quality, chemical longevity, and digital battery intelligence.
Lithium Iron Phosphate (LiFePO4) remains the gold standard for stationary and high-safety mobile storage due to its exceptional thermal runaway limit (~270°C) and structural stability. Grenergy is integrating next-generation LMFP (Lithium Manganese Iron Phosphate) and semi-solid-state cells into our high-tier client roadmap, pushing gravimetric energy density past 210 Wh/kg while retaining a safe, cobalt-free footprint.
Standard passive balancing dissipates excess charge as heat, reducing lifetime efficiency. Grenergy’s proprietary Smart BMS incorporates Active Balancing algorithms that transfer charge from high cells to lower ones dynamically, boosting usable capacity by up to 8% and extending system lifespans beyond 6,000 cycles at 85% DoD. Integrated CANbus, RS485, and Modbus RTU communications allow real-time edge monitoring, making them highly compatible with Tier-1 inverters like Victron, Growatt, and SMA.
How Grenergy addresses critical energy resilience challenges across global commercial, residential, and off-grid verticals.
Providing high-voltage (HV) and low-voltage (LV) stacked or wall-mounted energy storage options. Facilitates complete solar self-consumption, grid back-up during outages, and scheduled peak-shaving to minimize utility bills under high tariff structures.
Heavy-duty LiFePO4 batteries configured for 12V, 24V, and 48V RV systems. Offering high surge currents, compact footprints, and vibration resistance necessary for rough-road environments and marine environments, replacing unsafe lead-acid counterparts.
Designed for field research, medical clinics, and remote disaster zones. Heavy-duty trolley-type power stations and high-output portable power blocks supply uninterrupted pure sine-wave AC power to critical devices and communications apparatus.
Operating from Shenzhen—the global epicenter of lithium battery technology and manufacturing—Grenergy benefits from a highly integrated local supply chain. From chemical raw materials and anode/cathode refinement to cell fabrication, BMS microchip sourcing, and custom sheet metal enclosure fabrication, everything is handled within a 50-kilometer industrial radius.
This localized ecosystem allows us to compress product development times from months to weeks and scale up production orders rapidly. Our factory uses automated cell-sorting machines, precision laser welding, and automated aging testing systems where every single battery pack undergoes complete charge/discharge validation cycles to eliminate infant mortality issues and ensure consistent cycle lives.
Operating globally means complying with the highest international environmental, shipping, and safety standards.
We adhere to rigorous testing protocols to secure international market entries. Our battery designs carry certifications including UL1973, CE, FCC, PSE, UN38.3, and IEC62619. Every unit is shipped under UN38.3 standard requirements, accompanied by detailed Material Safety Data Sheets (MSDS) for safe air, ocean, and land logistics.
To provide our OEM/ODM distributors, installers, and B2B clients with complete peace of mind, we back all our energy storage systems with a 3 Million USD third-party liability insurance policy. This high level of financial and product assurance reflects our absolute confidence in our engineering design and quality verification processes.
Collaboratively developing next-generation energy storage ecosystems with world-class engineering teams.
Procurement teams representing telecom providers, commercial solar installation companies, and industrial battery distributors require reliable, repeatable manufacturing outputs. Grenergy offers structured OEM/ODM services to support these requirements:
Custom Form Factors & Mechanics: Our engineering team designs custom sheet-metal cabinets, wall mounts, and integrated portable trolley units to fit precise space envelopes.
Customizable BMS Protocols: We program and adapt internal BMS microcontrollers to ensure seamless communication with specialized inverter lines and telemetry interfaces used by B2B clients.
Reliable After-Sales & Warranty Support: Every industrial product is supported by a comprehensive warranty, technical service manuals, and a direct engineering support channel to minimize field issues.
Key technical and commercial answers regarding our manufacturing processes and product reliability.
Our standard LiFePO4 battery systems deliver ≥ 6,000 complete charge/discharge cycles at 80% Depth of Discharge (DoD) under room temperature (25°C). Even after 6,000 cycles, the system retains at least 80% of its initial nominal capacity, translating to more than 10-15 years of continuous daily operation in home ESS configurations.
Yes, our modular batteries (rack-mounted and wall-mounted styles) are designed to support parallel expansion. High-voltage series configuration is supported on customized OEM models. In parallel, our Smart BMS handles automatic address assignment and balances current distribution across active modules to prevent cell imbalance.
We enforce multi-tiered safety systems. First, we use chemistry-stable LiFePO4 cells. Second, our integrated BMS monitors real-time voltage, current, and temperature at multiple points. In case of abnormal readings, the BMS disconnects the relay or solid-state switch to isolate the fault. Third, we design fire-resistant cells and housings with integrated pressure release vents.
For custom styling and engineering modifications, structural and electrical design takes about 2-3 weeks. Once designs are approved, prototyping takes 3-4 weeks. Mass production cycles typically range between 35 and 45 days, depending on cell availability and overall order volume.
We supply UN38.3 test reports, MSDS documentation, and custom packaging drop-test certifications. Our shipments are certified safe for global freight carriage (both sea and air cargo). Our production processes also strictly follow ISO9001 and ISO14001 guidelines to maintain quality.
Explore our high-performance power station configurations, RV batteries, and industrial floor-mounted energy systems.
Grenergy
