High Voltage LiFePO4 Energy Storage
Stack 5–17 modules for 80kWh–225kWh at 232V–979V. Dual-BMS protection, built-in WiFi monitoring, and broad inverter compatibility for home and commercial solar storage.
Purpose-built for homeowners and commercial operators who need flexible, reliable power that scales with their evolving energy demands.
The RAKOUR RAKOURHV is a modular server rack battery delivering 16kWh per 51.2V 314Ah module. Connect 5 to 17 modules in series to build a high-voltage system ranging from 232V to 979V, scaling total capacity from 80kWh to 225kWh. This architecture is purpose-engineered for demanding residential energy storage and small commercial solar applications that require reliable multi-day backup autonomy without adding separate systems.
This system suits homeowners running solar arrays above 10kW, commercial facilities managing peak-shaving loads, and off-grid installations requiring extended energy autonomy. At 90% DoD, each 16kWh module delivers a genuine 15 kWh home battery backup per cycle. The modular design lets you start with one unit and add further modules incrementally as your actual power consumption and storage requirements expand.
Every parameter needed to verify system compatibility — drawn directly from RAKOUR's factory datasheet.
Each module delivers 314Ah at 51.2V nominal, totalling 16.077kWh. Usable energy at 90% DoD is 14.47kWh. Maximum charge and discharge current is 200A. Charging voltage: 57.6V; discharge cutoff: 46.4V. The 51.2V LiFePO4 lithium battery chemistry provides stable, flat voltage output throughout the full discharge profile.
RAKOUR rates this module at ≥8,000 cycles under standard test conditions — equivalent to over 15 years of daily cycling. Capacity retention stays above 80% at end of rated cycle life, setting a LiFePO4 battery life benchmark well above NMC alternatives. Active fan cooling and porous housing manage heat to protect long-term performance.
Module dimensions: 771×550×200mm; net weight 112kg. Ports: CAN, RS485, built-in WiFi. Discharge range: −20°C to 60°C; charge range: 0°C to 60°C. IP20 rated. Confirms compatibility with standard rack cabinet installations and typical indoor residential storage environments.
Three built-in technologies maximize efficiency, system intelligence, and long-term cell health.
RAKOUR uses a two-tier battery management system: a master BMS inside the BCU handles system-level voltage balancing, SOC calculation, and fault isolation, while a slave BMS in each module independently monitors its own cell cluster. This architecture eliminates single points of failure and maintains precise control across all modules.
An integrated WiFi module enables remote monitoring from a smartphone without additional hardware. The on-unit color touch screen displays real-time SOC, voltage, current, and alarm status. Both interfaces share the same LiFePO4 BMS data stream, delivering consistent visibility for on-site operators and remote managers alike.
A built-in soft-start circuit prevents inrush current spikes at startup, enabling full compatibility with inverters lacking native soft-start support. Each module's cooling fan with porous sheet-metal housing maintains continuous airflow during high-load cycles, preventing hot-spot formation and the accelerated cell degradation that thermal stress causes.
RAKOUR builds safety into every layer — from cell chemistry to system-level fault response and third-party certification.
The BMS battery management system protects against overcharge, over-discharge, overcurrent, short circuit, high temperature, and low temperature. When any threshold is breached, the BMS isolates the affected module within milliseconds without shutting down the full array, preserving system uptime during abnormal grid or load events.
LiFePO4's olivine phosphate structure stays thermally stable to 270°C, dramatically reducing thermal runaway risk versus NMC chemistry. RAKOUR sources Grade-A prismatic cells matched for capacity and internal resistance, eliminating inconsistencies that trigger cascade failures. This intrinsic chemistry underpins the entire LiFePO4 battery management system protection stack.
The RAKOURHV server rack battery carries CE, UN38.3, and MSDS certifications. UN38.3 requires altitude simulation, thermal, vibration, shock, and short-circuit testing prior to approval. These third-party validations confirm electrical safety, transport compliance, and material safety standards for global residential and commercial installations.
Flexible series and parallel architecture designed to match your inverter, your site, and future capacity requirements.
Connect 5 to 17 RAKOURHV modules in series to achieve nominal voltage from 256V to 870.4V, with usable capacity scaling from 72kWh to 202kWh at 90% DoD. Up to 4 sets can operate in parallel, enabling maximum capacity exceeding 800kWh — suitable for large homes, commercial buildings, or microgrids.
The RAKOURHV communicates via CAN and RS485, with confirmed compatibility with Deye 29.9K–80K inverters. It operates as a native inverter battery across multiple high-voltage platforms without custom configuration. Staggered positive-negative terminal connections ensure balanced capacity distribution when parallel sets share the same inverter.
Beyond home backup, the RAKOURHV supports peak shaving, time-of-use arbitrage, and solar self-consumption. As a solar battery storage system, it stores excess daytime PV generation for evening discharge — reducing grid dependency across residential and commercial installations paired with hybrid inverters.
A four-step process — from pre-installation checks through first boot — minimizes commissioning time and prevents common wiring errors.
Confirm packaging is intact and all accessories present: power cables, communication cables, BCU, and user manual. Ensure 300mm clearance on all sides for ventilation. Verify voltage difference between parallel units stays within 1V before connecting power cables to prevent imbalanced loading.
For rack mount battery backup installation, stack modules using integrated limit bolt positions. Connect BCU CAN port to the inverter BMS port. Set the host battery ADDR to 1000; secondary modules increment sequentially. Use staggered terminal connections when two or more units share the same inverter.
On first boot, the touch screen enters user mode, displaying total voltage, SOC, and current. Access engineering mode via Settings for cell-level voltage differentials and fault logs. Activate the WiFi module to enable remote smartphone monitoring without additional gateway hardware.
RAKOUR is a Xiamen-based manufacturer combining factory-direct supply with independently verified product compliance across global markets.
The RAKOURHV high voltage battery holds CE, UN38.3, and MSDS certifications. CE confirms European electrical safety compliance. UN38.3 validates performance under altitude, thermal, vibration, and shock conditions. MSDS covers chemical safety data required for transport, customs clearance, and regulatory compliance across global markets.
Xiamen Rakour Technology Co., Ltd. designs and manufactures all RAKOUR products at its own facility, supporting OEM and ODM programs for distributors and system integrators needing custom branding or specification changes. Factory-direct supply eliminates intermediary markups while maintaining full component traceability from production to delivery.
All RAKOUR products carry a 5-year warranty covering modules, BCU, and BMS firmware. This reflects RAKOUR's Grade-A cell grading: cells are matched for capacity and internal resistance before assembly, reducing in-field failure rates and delivering consistent performance throughout the system's operational lifetime.
Download RAKOUR's complete documentation set to support system design, compliance review, and installation planning.
The RAKOURHV 51.2V 314Ah product datasheet provides verified electrical parameters, dimensional drawings, BCU technical data, and communication port pin-outs. Designed for engineers and procurement teams checking system compatibility — covers all configurations from HV-80K to HV-225K with tabulated energy and voltage data.
The full user manual covers inspection procedures, mounting, power and communication cable connection, BMS address assignment, touch screen operation, and maintenance schedules. Deye-specific manuals for the SUN29.9K–50KSG and SUN80KSG series include step-by-step inverter configuration, parallel shunt wiring, and BMS1 port setup instructions.
CE, UN38.3, and MSDS certificates are available as downloadable PDFs for compliance filing and project permitting. RAKOUR also supplies dimensional CAD files and system topology diagrams on request. Contact the RAKOUR technical team directly for any document not included in the standard download library.
Answers to the most common technical and purchasing questions about this high voltage system.
Deye 29.9K–80K compatible via CAN/RS485. Supports other high-voltage platforms with lithium protocols. Parallel shunt wiring connects one battery to dual inverter ports for higher power output.
RAKOUR rates this at ≥8,000 cycles — 15+ years of daily use. Capacity stays above 80% at end of cycle life. Grade-A matched cells and fan cooling prevent degradation from heat or cell inconsistency.
Yes. A dedicated slave BMS in each module operates independently from the master BCU. On fault detection, that module isolates in milliseconds while the remaining array continues running normally.
7 modules deliver 112.54kWh; 17 modules reach 225kWh per set. Up to 4 parallel sets exceed 800kWh total. All configurations are managed by the BCU and the integrated BMS management system.
Stack modules on limit bolts, connect BCU CAN to the inverter BMS port, set host ADDR to 1000 via the touch screen. Keep 300mm clearance for ventilation. Full steps are in the RAKOUR user manual.
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