KTAC TECHNOLOGY, as a professional energy storage battery manufacturer and supplier in China, provides full-series LiFePO4 energy storage solutions for global residential, commercial, and industrial applications. Our energy storage battery lineup covers low-voltage models (51.2V 100Ah, 200Ah, 314Ah, 334Ah) and high-voltage models (51.2V 628Ah, 668Ah), as well as complete commercial & industrial systems (125kW/265kWh three-phase).
In addition, we also offer you a one-stop solution for multiple specifications of Power Inverter, UPS Power Supply and Automatic Voltage Regulator. Please feel free to come and inquire!
Precision-Engineered for Diverse Applications: From compact wall-mounted home batteries to rack-based commercial systems, our energy storage battery series is designed for residential PV self-consumption, emergency backup, off-grid living, and commercial peak shaving. The low-voltage models feature a slim, wall-mountable design with clean cabling and quiet operation, while high-voltage systems are housed in robust cabinets with intelligent cooling for demanding environments.
Safe LiFePO4 Technology: The entire lineup utilizes highly stable Lithium Iron Phosphate (LiFePO4) chemistry, eliminating thermal runaway risks. All models hold authoritative international certifications (IEC62619, UN38.3, CE) and feature built-in high-power DC circuit breakers, ensuring household and industrial safety for long-term operation.
Ultra-Long Cycle Life: Under standard operating conditions, the batteries achieve up to 6,000 charge-discharge cycles with minimal capacity degradation. Stable long-term performance significantly reduces replacement and maintenance costs, offering superior long-term value.
Smart Compatibility & Plug-and-Play: Equipped with dual communication protocols (CAN and RS485), the units seamlessly integrate with the vast majority of hybrid and off-grid inverters on the market. Features include pre-charging, cell balancing, remote data monitoring, and firmware upgrades; installation and commissioning are simple, making them suitable for both new installations and retrofitting existing PV systems.
High-Voltage Systems for Commercial & Industrial: The 125kW/265kWh three-phase hybrid energy storage system integrates 10 MPPT inputs, 20 string connections, and a high-voltage battery stack (844.8V/314Ah/265kWh). It supports grid-tied, off-grid, and hybrid modes with generator compatibility, intelligent air cooling, and comprehensive safety features including smoke, temperature, and fire protection
Entry-Level Residential (51.2V 100Ah / 5.12kWh): Lightweight and installable by a single person, this low-investment model is ideal for apartments, small homes, balcony PV setups, and DIY projects. Supports scalable capacity expansion up to 15 units in parallel.
Standard Whole-Home Storage (51.2V 200Ah / 10.24kWh): Features an ultra-slim wall-mount design that balances capacity with space efficiency. Suitable for standard three-bedroom homes and detached houses, meeting daily PV self-consumption and short-term outage backup needs. Supports up to 16 units in parallel.
High-Capacity Residential (51.2V 314Ah / 16.08kWh & 334Ah / 17.10kWh): These models offer higher energy density for larger homes. The 314Ah delivers 16.076kWh with 200A charge/discharge current, while the 334Ah provides 17.1kWh. Both support up to 16 units in parallel, enabling expansion to over 250kWh.
High-Power Residential & Light Commercial (51.2V 628Ah / 32.15kWh & 668Ah / 34.20kWh): Featuring a 2P16S configuration and 300A high-current output, these high-capacity batteries are capable of powering heat pumps, EV chargers, and high-demand appliances. Ideal for luxury homes, farms, and small workshops. Supports up to 16 units in parallel for large-scale storage.
Commercial & Industrial (125kW/265kWh Three-Phase): A complete hybrid energy storage system for factories, hotels, hospitals, and commercial buildings. It includes a 125kW inverter, 265kWh high-voltage battery stack, 10 MPPT inputs, and intelligent energy management. Supports grid-tied, off-grid, and hybrid operation with generator input, enabling peak shaving, backup power, and renewable integration. The system is scalable up to 750kW.
Modular Parallel Expansion: The entire KTAC energy storage battery series supports parallel networking of multiple units of the same model. Battery capacity can be increased later to meet changing needs without replacing the entire system. Low-voltage home batteries support up to 16 units in parallel; high-voltage commercial systems can be expanded with additional battery modules.
Reduced System Complexity: High-capacity models significantly reduce the number of units required for parallel connection. For instance, an 80kWh requirement can be met with just five 314Ah units or four 628Ah units, effectively saving wall space, minimizing the use of copper busbars and communication cables, and lowering the risk of installation errors.
Stable Parallel Operation: The proprietary BMS features built-in load balancing and adaptive pre-charge functions. When multiple units operate in parallel, the system intelligently distributes charge/discharge loads, preventing single-unit overloads and voltage imbalances to ensure long-term, stable operation after expansion.
Residential PV Self-Consumption: Stores excess solar energy generated during the day to power the home at night, lowering peak-hour electricity costs and reducing reliance on the municipal grid.
Emergency Backup for Power Outages: Maintains power supply for lighting, refrigerators, internet connectivity, and essential home appliances during grid outages, ensuring the continuity of basic household operations.
Power Supply for Remote Off-Grid Homes: Provides a stable, independent energy storage power source for remote cabins, self-built rural homes, and areas without grid coverage.
Commercial & Industrial Energy Management: Enables peak shaving, demand response, and backup power for factories, hotels, hospitals, and commercial buildings. The 125kW/265kWh system supports grid-tied, off-grid, and hybrid modes with generator input, reducing energy costs and carbon footprint.
Microgrid & Renewable Integration: Suitable for microgrid projects, energy communities, and large-scale renewable plants, providing flexible storage capacity and intelligent energy management.
With over 20 years of continuous power supply manufacturing experience (since 2004), KTAC has built a reputation for quality, reliability, and innovation. Our manufacturing foundation includes:
3 factories with over 8,000 m² of production floor
100+ professional staff including dedicated QA and after-sales engineers
Export to 30+ countries across Asia, Africa, Europe, and the Americas
Trusted clients including Tier-1 distributors and reputable companies worldwide
We support OEM/ODM services including custom enclosure color, logo printing, BMS protocol tuning for third-party batteries, parameter presets, and packaging design. Every energy storage battery we manufacture is built to deliver years of dependable service.
A: Yes. Low-voltage home batteries support up to 16 units in parallel (e.g., 51.2V 314Ah supports 16 units). High-voltage commercial systems can be expanded with additional battery modules. All parallel units must be of the same model and capacity.
A: Under normal temperature (25°C) and 80% discharge depth conditions, the battery achieves 6,000 cycles with low capacity loss during long-term use.
A: Yes. The charging temperature range is 0°C to 40°C, and the discharge operating temperature range is -20°C to 40°C, ensuring stable operation across various climate conditions. Derating occurs outside these ranges.
A: No. Different capacity models must not be connected in parallel. The BMS will detect capacity mismatch and trigger a protection fault. All units in a parallel bank must be of the same model and same capacity.
A: All models hold IEC62619, UN38.3, and CE certifications. Additional certifications such as CEC are available upon request.
