Explore our primary industrial LiFePO4 and high-voltage lithium battery solutions optimized for residential energy storage, recreational vehicles, golf carts, and high-capacity back-ups.
Established in 2010, Shenzhen Grenergy Technology Co., Ltd. is a premier high-tech enterprise specializing in the research, development, and advanced manufacturing of customized lithium batteries, integrated energy storage systems (ESS), performance-grade power batteries, intelligent battery management systems (BMS), and end-to-end engineered energy solutions. Driven by a passion for technical excellence and strict engineering standards, Grenergy delivers optimized power architectures across multiple industrial, commercial, and residential sectors worldwide.
Our mission centers on providing robust alternatives to conventional power storage. Grenergy products are engineered to support various OEM and ODM customized requirements, allowing us to align each manufacturing batch with the complex structural, thermal, electrical, and communicative requirements of global B2B clients.
Since the early days of the lithium chemistry transition, Grenergy has focused heavily on the design and manufacture of reliable, clean, and sustainable energy storage systems. Our history spans over 10 years of focused engineering expertise, during which we developed an expansive and diverse product portfolio. From heavy-duty Lead-acid replacement batteries to smart home Powerwalls, grid-connected battery racks, high-output portable power generators, and specialty heavy-duty trolley systems, we meet the rigorous demands of global business clients.
By centering integrity, continuous product improvement, and long-term client success, Grenergy has established deep manufacturing roots in China's Silicon Valley. We ensure safety, reliability, and advanced cellular architecture are integrated into every product phase, helping businesses transition from fossil-fueled infrastructure to sustainable, clean energy configurations.
When procuring industrial lithium-ion batteries, engineering teams, procurement managers, and system integrators face unique product life cycle and supply chain risks. System sizing, compatibility with solar inverters (e.g., Victron, Growatt, SMA), performance in extreme temperatures, and local regulatory clearance remain central concerns. Grenergy mitigates these challenges via technical expertise and manufacturing protocols:
Our custom lithium battery systems feature multi-protocol communication boards. Whether utilizing CANbus, RS485, or Modbus, Grenergy batteries interface seamlessly with commercial inverter networks, ensuring synchronized charging, discharging, and real-time parameter tracking.
We combat premature capacity decay by matching lithium cells within strict internal resistance (IR), voltage, and capacity ranges. This careful grouping, combined with active balancing, ensures a cycle life exceeding 6,000 cycles at 80% DOD for our premium LiFePO4 cells.
From floor-mounted residential storage cabinets and high-density rack configurations to compact portable power stations, our mechanical designs meet strict shock, vibration, and thermal parameters, ensuring structural integrity in mobile or high-vibration applications like RVs, marine, and light electric vehicles.
Operating from Shenzhen, the global hub of battery tech R&D and advanced manufacturing, Grenergy leverages a highly optimized supply chain. We maintain direct partnerships with top-tier lithium cell refineries and semiconductor suppliers, which translates to competitive component costs, consistent materials sourcing, and faster turnarounds on custom orders.
Our facility handles production stages in-house—including custom BMS design, cell matching, battery pack assembly, structural testing, and final burn-in testing. This vertical integration allows us to implement stringent quality control measures at every step, ensuring each product meets global performance requirements.
Grenergy combines scalable manufacturing capacity, certified safety frameworks, and risk-management solutions to support our global distribution networks.
Sourcing lithium batteries requires compliance with international safety and transportation regulations. Grenergy systems are fully tested and certified to clear customs smoothy and satisfy municipal utility grid connection rules. Our facilities and products carry major international certifications:
To provide our international clients with peace of mind, all Grenergy shipments are backed by a $3 Million USD third-party product liability insurance policy. This comprehensive coverage helps safeguard global importers, distributors, and installers against financial risks related to unexpected operating anomalies or site hazards.
At Grenergy, we envision a cleaner future where decentralized energy storage is accessible to all. We develop battery systems that are clean, stable, and simple to integrate. Through years of research in electrochemical cells and electronic controls, we have established ourselves as a reliable name in the energy storage industry.
Our products are engineered to support residential grids, commercial operations, and mobile off-grid setups, helping our B2B partners deploy customized energy solutions. Through close collaborations with top cell manufacturers and material scientists, we bring the latest advances in energy density, cycle performance, and BMS safety to the global market.
Our collaborative approach allows us to stay at the forefront of the industry. We work closely with semiconductor developers, inverter manufacturers, and solar installers to ensure our products remain highly compatible with the latest energy storage tech. By matching the right components and protocols, we provide our customers with efficient, reliable, and modern battery solutions.
These partnerships also help us optimize production and keep lead times predictable, allowing us to serve clients across Europe, North America, and the Asia-Pacific region reliably.
Our lithium-ion and LiFePO4 battery architectures are tailored to meet the technical demands of specific target environments:
Designed for grid-connected and off-grid home setups. Wall-mounted and floor-mounted systems, such as our 51.2V 100Ah and 314Ah models, integrate with hybrid solar inverters, enabling smart peak-shaving, emergency backup, and reliable solar self-consumption.
For mobile off-grid applications, our 12.8V 100Ah and 300Ah LiFePO4 batteries replace heavy, maintenance-prone lead-acid options. Offering high vibration tolerance, lightweight construction, and simple installation, they deliver reliable power on the road or water.
Our 76.8V high-voltage lithium battery packs are engineered to meet the acceleration, regenerative braking, and discharge demands of utility vehicles, golf carts, and electric transport, providing consistent power and fast charging capabilities.
Get detailed technical answers regarding design, manufacturing, custom specifications, and shipping compliance for our lithium battery systems.
We specialize in Lithium Iron Phosphate (LiFePO4) chemistry for home energy storage, RVs, and stationary power applications. Compared to traditional Nickel Manganese Cobalt (NMC) options, LiFePO4 offers superior thermal stability, resistance to thermal runaway, non-toxicity, and a significantly longer lifespan (often exceeding 6,000 charge cycles at 80% Depth of Discharge).
Our engineering team designs custom Battery Management Systems (BMS) to match specific discharge rates, interface protocols (such as CAN, Modbus, RS485, and RS232), and passive or active balancing needs. We also program temperature thresholds, over-current safety metrics, and custom diagnostic tools to fit our clients' end-user requirements.
Lithium battery shipping and distribution require strict safety documentation. We maintain ISO 9001, 14001, and 45001 certifications for our factory facilities. Our battery designs carry UL and CE markings for electrical safety, UN38.3 certification for safe air/sea transport, and PSE certification for the Japanese market, ensuring compliance across regions.
To support our international B2B buyers, Grenergy maintains a $3 Million USD third-party product liability insurance policy. This coverage provides an extra layer of financial security for distributors, installers, and importers in the rare event of an operational failure, helping protect businesses from liability concerns.
Lead times depend on the complexity of the customization. For standard configurations with minor adjustments, production generally takes 25 to 30 days. For complete custom ODM projects—which include custom enclosure tooling, proprietary BMS development, and fresh certifications—the timeline ranges from 45 to 60 days, including testing and prototyping.
Within a large battery pack, minor differences in cell capacity or internal resistance can lead to uneven charging, accelerated aging, and reduced capacity over time. At Grenergy, we run all cells through dynamic grading cycles. We match cells within strict parameters (Voltage < 5mV, Resistance < 0.5mΩ) before assembly, maximizing both performance and longevity.
Yes, but parameters depend on the specific model and integrated BMS. For instance, our 12V LiFePO4 RV batteries support series connections up to 48V (4S) and parallel connections up to 4 units (4P) to increase capacity. Our larger 51.2V ESS modules are designed for parallel scaling, with some models supporting up to 15 or 32 modules in a single group without external control gear.
Our battery enclosures are engineered with optimized airflow channels and built-in thermal barriers. The BMS monitors cell temperatures using multiple precision NTC thermistors. If internal temperatures exceed safe operating limits, the BMS flags an alert and automatically disconnects the charge/discharge pathways. For colder climates, we can integrate custom heating elements that warm the cells to safe levels before charging begins.
Discover more of our advanced energy storage systems, built to deliver reliable power in off-grid setups, industrial environments, and demanding outdoor applications.
Partner with an established manufacturer. Let our engineering team develop, test, and manufacture custom lithium-ion battery packs that align with your business requirements.
Grenergy
