High Voltage Battery 51.2V 314Ah LiFePO4 | C&I Energy Storage for Solar Installers & EPCs

Grade-A LiFePO4 Cells · Built-in Smart BMS · IEC62619 Certified · OEM/ODM Ready

Power your commercial projects with a factory-direct, private-label-ready 51.2V 314Ah LiFePO4 high voltage battery. Engineered for solar integrators, EPCs, and distributors who demand certified performance, scalable capacity, and full OEM flexibility — shipped direct from our Xiamen manufacturing facility.

Home » Products » High Voltage Batteries » HV 51.2v 314Ah

Scalable Battery Energy Storage System Built for Commercial Demand

Product Overview

The 51.2V 314Ah module delivers 16kWh of usable capacity per unit, supporting up to 15 stackable units in parallel for large-scale commercial energy storage deployments across industrial, commercial, and solar applications.

RAKOUR NSTFW-16K-HV 51.2V 314Ah high voltage battery system front view with stackable LiFePO4 modules and BCU control unit
RAKOUR NSTFW-16K-HV battery energy storage system topology showing PV array, high voltage inverter, BCU, and stackable battery modules in series
RAKOUR NSTFW-16K-HV BCU battery control unit with integrated LiFePO4 battery management system, touch screen display, CAN RS485 communication ports
RAKOUR 51.2V 314Ah high voltage battery rack mount installation showing multiple stackable battery modules in iron frame for commercial energy storage application
RAKOUR NSTFW-16K-HV scalable high voltage battery system with 5 to 14 stackable LiFePO4 battery modules connected in series via BCU, delivering 256V to 716.8V for commercial energy storage

System Architecture — Modular High Voltage Battery Design

The RAKOUR NSTFW-16K-HV is a C&I-grade high voltage battery energy storage system composed of stackable 51.2V 314Ah LiFePO4 battery modules connected in series through a dedicated BCU (Battery Control Unit). Each battery module contributes 16.08kWh, and the system supports 5 to 17 modules in series, delivering a scalable operating voltage range of 256V to 716.8V — purpose-built for high voltage inverter integration.
RAKOUR NSTFW-16K-HV dual-layer LiFePO4 battery management system diagram showing slave BMS in each battery module reporting cell voltage and temperature to master BMS in BCU via internal CAN bus

Dual-Layer BMS Architecture for Intelligent Cell Management

Each battery module incorporates a slave BMS that continuously monitors cell voltage and temperature, reporting data to the master BMS housed within the BCU via internal CAN communication. This dual-layer LiFePO4 battery management system governs charge/discharge control, cell balancing, over-current, over-voltage, and thermal protection — ensuring safe, autonomous operation across the full energy storage system without manual intervention.

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Integrated LiFePO4 Battery Management System for Maximum Safety

Key Features

Every unit ships with a built-in multi-layer BMS battery that monitors cell balancing, over-temperature, over-voltage, and short-circuit protection — ensuring long cycle life across 6,000+ charge cycles at 80% DoD.

 

HV 51.2v 314Ah – Rakour lithium battery energy storage

Grade-A LiFePO4 Cells with ≥8,000 Cycle Life at 90% DoD

The RAKOUR NSTFW-16K-HV is built on Grade-A LiFePO4 cells configured in a 16S1P architecture per battery module. Rated at ≥8,000 cycles at 90% DoD, each 314Ah module delivers 16.08kWh of dependable capacity — significantly reducing total cost of ownership for long-duration commercial energy storage deployments.

RAKOUR NSTFW-16K-HV dual-layer BMS battery protection system with slave BMS per module and master BMS in BCU providing real-time monitoring of voltage, current and temperature against overcharge, over-discharge, over-current and thermal fault

Dual-Layer BMS Battery with Multi-Level Fault Protection

The integrated LiFePO4 battery management system operates on two levels: a slave BMS within each stackable battery module and a master BMS inside the BCU. The BMS battery monitors cell voltage, current, and temperature in real time, with active protection against overcharge, over-discharge, over-current, and high/low temperature events — ensuring autonomous, fail-safe operation across the full energy storage system.

RAKOUR NSTFW-16K-HV high voltage battery BCU with active fan cooling per module, built-in soft-start circuit for high voltage inverter compatibility, and on-board touch screen display showing SOC, alarms and system parameters

Active Fan Cooling, Soft-Start Circuit & On-Board Display

Each battery module is equipped with an active cooling fan to manage thermal load during high-current operation. A built-in soft-start circuit enables compatibility with high voltage inverters that lack native soft-start functionality. The BCU integrates a touch screen display for real-time SOC, alarm status, and system parameter monitoring at the installation site.

Full Technical Specifications — High Voltage Battery Module

Technical Specifications

All electrical parameters are factory-verified and third-party certified. Each battery module is tested before shipment to ensure compliance with rated capacity, internal resistance, and BMS response thresholds.

 

Electrical Parameters — Per Module
🔋
Cell Chemistry LiFePO4 16S1P · Grade-A cells
Module Energy 16.08 kWh Usable at 90% DoD
🔌
Nominal Voltage 51.2 V Charging: 57.6 V · Cut-off: 46.4 V
🌊
Capacity 314 Ah Total: 16,077 Wh
Charge Current Rec: 160 A Max: 200 A
Discharge Current Rec: 160 A Max: 200 A
♻️
Cycle Life ≥ 8,000 cycles @ 90% DoD · 5+5 yr warranty
📉
Rec. Depth of Discharge 90% DoD for rated cycle life
🏗️ System Configuration — BCU Series
🔢
Modules per Rack 5 – 14 In series via BCU
System Voltage Range 256 – 716.8 V 5 modules = 256 V · 14 modules = 716.8 V
🔋
Max System Energy 225.08 kWh 14 modules · 90% DoD
🔗
Max Parallel Racks 17 racks Up to 10 inverters AC parallel
📡
Communication
CAN RS485
BCU → inverter BMS1 port
📲
Remote Monitoring Wi-Fi (built-in) BCU touch screen + mobile app
🌡️ Thermal Parameters
🌡️
Working Temperature −10°C ~ 55°C Discharge range
🔆
Charge Temperature 0°C ~ 55°C Charge operating range
❄️
Storage Temperature 0°C ~ 35°C Recommended long-term storage
💨
Cooling Mode Active Fan Per module · auto-triggered on thermal load
📐 Mechanical Parameters
📏
Module Dimensions 771 × 550 × 200 mm W × D × H
⚖️
Module Weight ~118 kg Per module approx.
🏠
Installation Stack / Iron Frame Indoor installation · IP20
💧
Humidity 5% ~ 95% RH Non-condensing · working & storage
🏔️
Operating Altitude ≤ 2,000 m UN38.3 altitude simulation passed
🛡️
IP Rating IP20 Controlled indoor environment
Compliance & Certifications
🏅
Certifications
🇪🇺 CE ✅ UN38.3 8th Ed. 🧪 MSDS ⚓ By Sea (CNAS)
UN 3480 / UN 3481 · Hazard Class 9 · Third-party lab verified
🔒
BMS Protection Dual-layer (Slave + Master) Over-charge · over-discharge · over-current · thermal · short-circuit
📋
Warranty 5 + 5 Years 5 yr product + 5 yr performance guarantee
📎 All specifications apply to the RAKOUR NSTFW-16K-HV (51.2V 314Ah) module. System energy and voltage values are based on 5–14 modules in series via BCU. Current values are subject to operating temperature and SOC conditions.

Rack Mount Battery Backup for Solar, Commercial & Industrial Sites

Applications

Designed for demanding real-world environments, this rack mount battery backup solution is ideal for solar self-consumption, peak shaving, off-grid backup, and time-of-use optimization at the commercial scale.

 

C&I solar energy storage LiFePO4 battery module for commercial and industrial energy storage system

C&I Solar Energy Storage — On-Grid, Hybrid & Peak Shaving

The RAKOUR NSTFW-16K-HV is purpose-built for commercial and industrial solar energy storage deployments where high capacity, scalable architecture, and high voltage inverter compatibility are non-negotiable. With each rack delivering 16.08kWh and support for up to 17 battery stacks in parallel — each containing 5 to 14 modules — the system scales to meet large-load demand response, solar self-consumption maximization, and time-of-use peak shaving requirements on a single platform.

HV 51.2v 314Ah – Rakour lithium battery energy storage

Grid Backup & Multi-Inverter AC Parallel Deployments

The NSTFW-16K-HV energy storage system supports up to 10 inverters in AC parallel operation, making it a viable backbone for microgrid, EPC-designed backup power installations, and multi-building commercial facilities. Its stackable battery architecture enables phased capacity expansion without system redesign — a critical advantage for EPCs and distributors delivering scalable commercial energy storage solutions to end clients.

Server Rack Battery Compatible With Leading High Voltage Inverter Brands

Compatible Inverters

This server rack battery communicates natively with major high voltage inverter brands via RS485 and CAN protocols, enabling plug-and-play commissioning for installers.

 

🟢
Growatt
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
🔵
Sofar
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
🟡
Goodwe
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
🔴
Solis
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
🟠
Afore
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
⚙️
ATESS
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
🔷
Megarevo
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
💡
LuxPowerTek
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
🌿
Koyoe
High Voltage Series
Protocol
CAN RS485
Connect BCU CAN/RS485 → inverter BMS port
✅ Compatible
📎 Inverter compatibility is subject to firmware version. DEYE SUN-29.9K~50K-SG01HP3 and SUN-80K-SG02HP3-EU-EM6 are factory-verified with RAKOUR NSTFW-16K-HV. Contact RAKOUR's technical team for model-specific commissioning documentation.

Certified High Voltage Battery Meeting Global Safety & Shipping Standards

Certifications & Compliance

Every battery unit is manufactured under ISO 9001-certified quality controls and independently tested to ensure your projects meet regulatory and insurance requirements in key markets worldwide.

 

RAKOUR NSTFW-16K-HV — Third-Party Verified Compliance for C&I Deployments

For solar installers, EPCs, and battery distributors operating across international markets, the RAKOUR NSTFW-16K-HV high voltage battery ships with a complete, independently verified certification package. Every 51.2V 314Ah battery module is tested and certified under third-party laboratory conditions — ensuring your commercial energy storage projects meet regulatory, insurance, and logistics compliance requirements without qualification delays.

UN38.3 — Transport Safety Validated Across All Hazard Test Categories

The NSTFW-16K-HV LiFePO4 cells and assembled battery module have been independently tested to UN38.3 (8th Edition) — covering altitude simulation, thermal stress, vibration, mechanical shock, external short circuit, crush, overcharge, and forced discharge. All test results passed with no fire, no explosion, no leakage, and no rupture. UN number: UN 3480 / UN 3481, Transport Hazard Class 9.

🧪 ✓ All 8 Tests Passed
UN38.3
UN Manual of Tests & Criteria · Rev.8 (8th Edition)
📋
Report No.
TSZ25C8004A05-02
🏛️
Testing Lab
Shenzhen Tiansu Calibration & Testing Co., Ltd.
📅
Test Period · Issue Date
2025.03.10 – 2025.03.24 · Issued 2025.03.25
🔬
8 Test Items — All Pass
🏔️
Altitude Sim.
🌡️
Thermal Test
📳
Vibration
💥
Shock
Ext. Short Circuit
🔨
Crush
🔋
Overcharge
📉
Forced Disch.
🔋
Sample Tested
51.2V / 314Ah / 16,077 Wh · 4 units (B1#–B4#) · ~118 kg each
🧬 ✓ Verified
MSDS
Material Safety Data Sheet · Chemical Hazard Classification
📋
Report No.
TSZ25C8004A05-03
🏛️
Issuing Lab
Shenzhen Tiansu Calibration & Testing Co., Ltd.
📅
Issue Date · Validity
Issued 2025.03.25 · Valid to 2025.12.31
⚗️
Key Chemical Composition
LiFePO4 (24%) Graphite (10–30%) LiPF6 (23%) Copper (7–13%)
🚢
Transport Classification
UN 3480 UN 3481 Hazard Class 9 Non-Marine Pollutant
✈️
Air Freight
ICAO/IATA DGR 66th Ed. · PI 965 Section IA / PI 966–967 Section I
✓ CNAS IB0078
By Sea
Identification & Classification Report for Sea Transport of Dangerous Goods
📋
Issued No.
SEKSZ202412218304PXY240001
🏛️
Issuing Authority
Beijing DGM Air Transport Technology Development Co., Ltd.
📅
Effective Date · Validity
2025.01.01 · Valid to 2025.12.31
🚢
Transport Classification
UN No.
3480 / 3481
Hazard Class
Class 9
Marine Poll.
None
🔋
Goods Description
Lithium-ion Battery Pack · 51.2V 314Ah 16,077Wh
🇪🇺 ✓ EMC Directive 2014/30/EU
CE
CE Conformity · Electromagnetic Compatibility · EU Market Access
📋
Certificate No. · Report No.
FCS202406109CA01M1 · FCS202406109E01M1
🏛️
Testing Lab
Dongguan Funas Testing Technology Co., Ltd.
📅
Issue Date
2024.07.16
📐
Test Standards Passed
EN IEC 61000-6-1: 2019
EN IEC 61000-6-3: 2021
EN IEC 61000-3-2: 2019 / A1: 2021
EN 61000-3-3: 2013 / A2: 2021 / AC: 2022-01
📎 All certificates apply to RAKOUR NSTFW-16K-HV (51.2V 314Ah, 16,077Wh). UN38.3 tested under 8th Edition standard. CE covers EMC Directive 2014/30/EU. By Sea issued by CNAS-accredited lab (IB0078). Certificate copies available upon request for OEM and project procurement.

Private Label & OEM Battery Energy Storage System Manufacturing

OEM & ODM Support

We support distributors and EPCs with full OEM and ODM customization including private label branding, custom BMS firmware, packaging design, and white-label documentation for your end-market.

 

🏭
Manufacturer Type Vertically Integrated OEM
⚗️
Cell Source Grade-A LiFePO4 (Brand A-tier)
🔩
PACK Process Full-Auto Laser Welding · PCB Sampling
Quality Control 100% Inspection · ISO 9001 : 2015
📦
Export Compliance UN38.3 · IEC62619 · CE · RoHS · MSDS
01
🏷️
Private Label Branding
Custom logo, color, and label design applied to battery modules and BCU enclosures — your brand identity on RAKOUR hardware.
Brand Ready
02
🔧
Custom Capacity Configuration
Tailor module count and system voltage — from 204.8V to 512V — to match your target market and inverter ecosystem requirements.
Flexible Design
03
💾
BMS Firmware Customization
CAN / RS485 protocol adaptation, SOC display parameters, and BMS protection thresholds tuned to your inverter partner specifications.
Protocol Support
04
📄
Full Documentation Support
Product manuals, wiring diagrams, and CE / IEC62619 / UN38.3 certification documents issued under your brand name.
Cert Included
05
📦
Low MOQ for Market Entry
Flexible minimum order quantities for distributors launching the ET-51.2V 200Ah-HV or any RAKOUR product into new regional markets.
Low MOQ
🔋 RAKOUR OEM-Ready Product Range — All Models Available for Private Label LiFePO4 · 51.2V Platform
Model
Energy
Voltage
Max Parallel
Certifications
ET-51.2V 200Ah-HV
10.24 – 102.4 kWh
204.8V – 512V
4 sets
CE IEC62619 UN38.3
🔋 51.2V 200Ah-LV Rack
10.24 kWh / unit
51.2V
15 pcs
CE RoHS IEC62619
🔋 51.2V 280Ah-LV Rack
14.34 kWh / unit
51.2V
15 pcs
CE UN38.3 MSDS
🔋 51.2V 314Ah-LV Rack
16.08 kWh / unit
51.2V
15 pcs
CE UN38.3 MSDS
🔋 51.2V 100Ah-LV Rack
5.12 kWh / unit
51.2V
15 pcs
CE RoHS UN38.3
🏠 NSTLV-10.2K Wall
10.24 kWh
51.2V
15 pcs
CE IEC62619 IP54
🏠 NSTLV-16K Wall
16.08 kWh
51.2V
15 pcs
CE IEC62619 IP54
🤝
RAKOUR OEM Manufacturing Credentials
Grade-A LiFePO4 cells · Full-auto laser welding PACK process · 100% pre-shipment QC inspection · ISO 9001:2015 quality management · Complete export certification suite for global distribution.
7+
OEM-Ready SKUs
5
Cert Types
5+5
Yr Warranty
100%
QC Tested

RAKOUR NSTFW-16K-HV High Voltage Battery for C&I Solar Projects

Frequently Asked Questions

What is the maximum scalable capacity of the RAKOUR NSTFW-16K-HV high voltage battery energy storage system?

A single rack of the NSTFW-16K-HV supports 5 to 14 battery modules in series, delivering a system voltage range of 256V to 716.8V and up to 225.08kWh of total energy per rack. For larger C&I solar energy storage deployments, up to 17 racks can be operated in parallel, and up to 10 inverters can be configured in AC parallel operation — enabling multi-hundred-kWh commercial energy storage systems from a single modular platform.

How does the LiFePO4 battery management system work in the NSTFW-16K-HV?

The NSTFW-16K-HV uses a dual-layer BMS battery architecture: a slave BMS embedded in each individual battery module continuously monitors cell voltage and temperature, transmitting data to the master BMS housed within the BCU via internal CAN communication. The master BMS governs charge/discharge control, cell balancing, over-voltage, over-current, and thermal protection autonomously — requiring no manual intervention during normal operation of the energy storage system.

Which high voltage inverters are compatible with the RAKOUR 51.2V 314Ah stackable battery system?

The NSTFW-16K-HV communicates via CAN and RS485 protocols, with factory-verified wiring guides for DEYE SUN-29.9K~50K-SG01HP3 and SUN-80K-SG02HP3-EU-EM6 inverters. Broader compatibility extends to Growatt, Sofar, Goodwe, Solis, Afore, ATESS, Megarevo, LuxPowerTek, and Koyoe high voltage inverter platforms. For DEYE 80kW series, parallel shunt wiring across dual BAT interfaces is recommended to maximize discharge current per cluster.

What is the rated cycle life and warranty of the NSTFW-16K-HV LiFePO4 battery module?

The NSTFW-16K-HV is rated at ≥8,000 cycles at 90% DoD, delivering long-duration commercial energy storage performance with predictable degradation over the asset life. The standard warranty is 5+5 years — covering both the battery modules and system-level components. Grade-A LiFePO4 cells in a 16S1P configuration per module underpin this longevity, making the NSTFW-16K-HV a bankable choice for EPC-designed C&I projects.

What certifications does the RAKOUR NSTFW-16K-HV carry for international shipping and market compliance?

The NSTFW-16K-HV high voltage battery holds CE, UN38.3 (8th Edition), MSDS, and By Sea (CNAS-accredited ocean freight hazard classification) certificates — covering European market compliance, international transport safety, and global logistics requirements. UN transport numbers are UN 3480 / UN 3481, Hazard Class 9. All certificate documents are available for distributor and EPC project qualification use.

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