OEM Lithium Battery & Inverter Supplier

Custom Energy Storage Systems, Intelligent LFP Power Solutions & Industrial Inverter Architectures by Grenergy

Our Featured Energy Solutions

Engineered for efficiency, longevity, and seamless system integration.

ODM 76.8V 100Ah High-Voltage Lithium Battery

ODM 76.8V 100Ah High-Voltage Lithium Battery for Golf Carts and Electric Vehicles Manufacturers, Company

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Rack-Mounted LiFePO4 Battery

Famous Rack-Mounted LiFePO4 Battery for System Integration Manufacturers, Company

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Backup Power Station

OEM Compact 25.6V 42Ah Backup Power Station Exporters, Factories

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12.8V 100Ah LiFePO4 RV Battery

Buy 12.8V 100Ah LiFePO₄ RV Battery for House Power Manufacturer, Exporter

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100Ah Lithium Battery for Golf Carts

OEM 100Ah Lithium Battery for Golf Carts & Electric Utility Vehicles Factories, Factory

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200Ah LiFePO4 Wall Battery

Buy 200Ah LiFePO4 Wall Battery for Solar Company, Exporters

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Wall-Mounted LiFePO4 Battery

Custom Installer-Friendly Wall-Mounted LiFePO4 Battery Manufacturers, Factory

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51.2V 100Ah Floor-Mounted Battery

Famous 51.2V 100Ah Floor-Mounted LiFePO4 Battery for Home Energy Storage Suppliers, Product

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About Grenergy

Shenzhen Grenergy Technology Co., Ltd.

Established in 2010, Shenzhen Grenergy Technology Co., Ltd. has evolved into a premier high-tech enterprise specializing in the R&D, design, and precision manufacturing of smart lithium batteries, robust energy storage systems (ESS), EV power batteries, intelligent battery management systems (BMS), and all-in-one hybrid inverter integrations. Guided by a relentless commitment to technological innovation and quality engineering, we deliver modular power systems that supply stable electricity to remote facilities, critical industries, and residential grids globally.

With nearly 10,000 square meters of state-of-the-art production space and a high-caliber workforce of 200 skilled engineers and industry professionals, we operate advanced assembly lines that balance custom engineering with global scalability. We strive to pioneer greener solutions, reduce Carbon footprints, and establish long-term grid stability.

Shenzhen Grenergy Facility Building

Data-Driven Insights & OEM Customization

Underpinned by institutional scale, international testing credentials, and risk assurance.

10k+
Sqm Facility Area
13+
Years Engineering R&D
$3.0M
Product Liability Ins.
100%
Quality Control Audits
Grenergy Assembly Workshop and Machinery

Engineered for Compliance, Protected by Law

Grenergy's manufacturing pipelines comply fully with international quality management structures including ISO9001, ISO14001, and ISO45001. To satisfy local code compliance requirements across North America, Europe, Asia, and Oceania, our products carry rigorous laboratory listings including UL, CE, FCC, PSE, and UN38.3.

To provide complete structural protection and liability support for utility contractors, global distributors, and energy planners, we secure a comprehensive $3 million USD third-party product liability insurance policy on all exported battery banks. This backing solidifies Grenergy as a high-authority partner for commercial projects demanding rigorous risk mitigation.

Technological Roadmap & Future Outlook

Advancing cell chemistries, software integration, and inverter efficiency.

Advanced BMS Topologies

Integrating microprocessors utilizing active cell-balancing algorithms that extend cell lifecycle by up to 25% compared to conventional passive designs, optimizing SoC (State of Charge) and SoH (State of Health) tracking.

Multi-layered Safety Integration

Deploying internal aerosol fire suppression mechanisms, mechanical pressure relief valves, and structural isolation barriers inside every module to suppress thermal runaway before propagation.

Next-Gen High-Voltage Architectures

Transitioning commercial designs from 48V low-voltage configurations to highly efficient 400V - 800V high-voltage (HV) systems, reducing distribution line losses and cooling requirements.

Solid-State & Sodium-Ion Cell Testing

Grenergy's R&D division has begun exploratory testing on alternative sodium-ion cells and semi-solid state chemistries to prepare for the resource-scarce regulatory shifts of 2026 and beyond.

AI Cloud BMS & Predictive Diagnostics

Deploying cellular and Wi-Fi-connected smart batteries that stream cell degradation trends to cloud diagnostics platforms, predicting failure patterns and optimizing utility maintenance schedules.

Bidirectional Vehicle-to-Grid (V2G) Inverter Systems

Expanding in-house inverter manufacturing capabilities to seamlessly manage bidirectional current flows, allowing home and commercial ESS systems to feedback value back to the macro-grid.

Localized Application Scenarios

From dense residential neighborhoods to challenging industrial environments, our solutions adapt to local needs.

Commercial Solar Power Storage Array Installation

Global Application Versatility

1. High-Performance Fleet Electrification & Golf Carts

Whether powering electric utility vehicles in hot regional climates or electric golf cart fleets in coastal resorts, our high-voltage 76.8V 100Ah battery designs maintain high C-rates and deep-discharge cycles without thermal degradation. High density guarantees longer operating shifts and fewer recharge stops.

2. Microgrids, RVs, and Off-Grid Domestic Freedom

Mobile homes, marine yachts, and remote cabins depend on rugged, vibration-resistant energy storage. Our 12.8V and 25.6V LiFePO4 deep-cycle storage units are engineered to interface smoothly with popular hybrid charge controllers, utilizing compact profiles that maximize usable space.

3. Peak Shaving & Load Shifting for Commercial Infrastructure

In areas with high peak-demand utility pricing, business owners deploy our rack-mounted LiFePO4 batteries (such as the 51.2V 314Ah deep capacity series) to store off-peak power and release it during peak demand. This helps lower operating expenses and stabilizes local energy grids.

Grenergy Advanced Battery Quality Control Laboratory

China's Supply Chain Resilience & Manufacturing Edge

Based in Shenzhen, the global epicentre of lithium-ion research and manufacturing, Grenergy leverages a highly integrated material supply network. We secure tier-1 lithium iron phosphate (LiFePO4) prismatic cells directly from premium domestic manufacturers, assuring our clients of high-quality materials and competitive pricing.

By optimizing supply routes for essential raw materials, BMS boards, custom enclosures, and high-efficiency heat sinks, we shield our clients from market price swings and logistics disruptions. Our automated production processes deliver precise cell sorting, robust ultrasonic welding, and detailed aging tests, reducing assembly defects to less than 0.05%.

For international buyers, this equates to shorter manufacturing lead times, modular scalability, and the ability to customize components to meet changing project specifications.

Company History & Brand Evolution

Grenergy was founded with a clear goal: to develop reliable, high-performance clean energy storage systems that ease the transition away from fossil fuels. Over the years, our product portfolio has grown from simple lead-acid replacement batteries to custom modular wall-mounted power walls, high-capacity rack systems, utility-grade containers, and integrated hybrid solar inverters.

For more than ten years, we have built a reputation for innovation, transparency, and safety. Rather than offering one-size-fits-all products, we collaborate closely with installers, solar integrators, and OEM distributors worldwide. We continually refine our battery chemistry, cell structures, and software integration to meet the evolving demands of our customers.

Grenergy Precision Battery Cells Assembly
Grenergy Global Team Collaboration Meeting

Partnerships, Collaborations & Customer Support

Our collaborative business model helps us support clients from initial conceptual design to deployment. Working with developers, smart grid operators, and electrical supply houses, we deliver custom energy products that meet regional safety and electrical standards.

Additionally, we maintain a dedicated technical support system, including engineering consultation, firmware integration support, and simple RMA processes, helping our clients minimize project downtime and streamline installation.

Technical & Commercial FAQs

Essential answers to key questions about system engineering, custom manufacturing, and global shipping.

1. What cell chemistry does Grenergy specialize in, and why? +
Grenergy focuses on lithium iron phosphate (LiFePO4 / LFP) chemistry. LFP provides superior thermal stability, safety, and cycle life (typically over 6,000 cycles at 80% Depth of Discharge) compared to alternative nickel-cobalt-based (NMC) chemistries, making it ideal for stationary energy storage and industrial applications.
2. Can Grenergy design custom battery enclosures to fit existing cabinets? +
Yes. We offer complete OEM and ODM design services. We customize battery dimensions, terminal placements, mounting brackets, sheet-metal enclosures, and internal insulation layouts to align with your system configuration.
3. How does the BMS integrate with third-party inverter models? +
Our intelligent BMS supports pre-configured communication protocols, including CANbus, RS485, and Modbus. This allows our battery banks to communicate and share data with major hybrid inverter brands, ensuring precise charging control.
4. What is the production lead time for high-volume custom battery packs? +
Standard OEM production ranges from 25 to 35 days, depending on cell availability, customization requirements, and project volume. Contact our support team for project-specific lead times and schedules.
5. Do you provide localized technical support and warranties? +
Yes. We support our products with comprehensive warranty terms. Our engineers provide remote support for setup, BMS firmware updates, and system diagnosis, and we coordinate with local distribution partners to handle parts replacement.
6. How does Grenergy ensure safety during global sea shipping? +
All our batteries undergo rigorous testing to secure UN38.3 certification, which is mandatory for air and sea transport. We package all shipments in specialized, fire-resistant materials and work with certified hazardous materials forwarders to ensure safe, compliant delivery.
7. What certifications does your factory hold for environmental management? +
Our manufacturing facilities are fully certified under ISO14001 for environmental management and ISO45001 for occupational health and safety. We implement sustainable practices, waste reduction, and strict energy management throughout our production lines.
8. What is the advantage of high-voltage (HV) battery systems for commercial installations? +
High-voltage systems reduce current draw, allowing for thinner wiring, lower cabling costs, and reduced heat generation. This improves overall system efficiency and simplifies installation in large commercial projects.

All-in-One Storage Catalog

Explore our technical specifications and product lines designed for global systems integration.

High-Capacity Rack-Mounted Battery

High-Quality High-Capacity 51.2V 314Ah Rack-Mounted Battery Manufacturer, Exporter

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Efficient Golf Cart Battery

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Wall-Mounted Home Battery

High-Quality 5.12kWh Wall-Mounted LiFePO4 Home Battery Companies, Company

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Trolley Energy Storage System

Wholesale 3.84kWh Portable Trolley Energy Storage System with 2500W AC Output Products, Exporters

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Floor-Mounted Battery for Home Backup

OEM 51.2V 314Ah High-Capacity Floor-Mounted Battery for Home Backup Supplier, Product

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Deep-Cycle RV Battery

High-Quality 12.8V 200Ah LiFePO₄ Deep-Cycle Battery for RV Product, Exporters

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5kWh Home Energy Storage Battery

Custom 5kWh LiFePO₄ Home Energy Storage Battery Supplier, Suppliers

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Power Station Battery with Inverter

ODM 25.6V 100Ah LiFePO₄ Power Station Battery with 1500W Inverter (2560Wh) Manufacturers, Factories

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