51.2V | 314Ah | 16.08kWh | LiFePO4 | IEC62619 Certified | Up to 15 Units in Parallel

NSTLV-16K 16kWh Solar Battery Storage System for Residential & Off-Grid Applications

The NSTLV-16K is a 51.2V, 16kWh low-voltage home energy storage system built for solar installers, EPCs, and OEM partners worldwide. Private label ready. IEC62619 certified. 11,000-cycle proven.

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Home » Products » Low Voltage Batteries » LV NSTLV 51.2v 314Ah 16kwh

NSTLV-16K — A Smarter Home Battery for Modern Solar Installations

Product Overview

The NSTLV-16K is a 16kWh home energy storage system operating at a nominal 51.2V (46.4V–57.9V range), engineered for grid-tied and off-grid solar battery applications in residential settings. As a low-voltage platform, it integrates directly with standard low-voltage inverters — no additional step-up hardware required.

RAKOUR NSTLV-16K 51.2V 314Ah LiFePO4 battery pack with built-in BMS — floor-mounted home energy storage unit

What Is the NSTLV-16K?

A floor-mounted 51.2V LiFePO4 battery pack with 314Ah capacity, built-in multi-protection BMS, and tri-port communication (CAN / RS485 / RS232). The BMS actively monitors cell voltage, current, and temperature while managing charge balancing, over-discharge, overcharge, and over-current protection autonomously.

RAKOUR NSTLV-16K scalable solar battery storage — up to 15 units in parallel for EPC and solar installer projects

Who Is It Designed For?

Solar installers and EPC contractors requiring a field-proven, certifiable home energy storage system with flexible capacity scaling. Up to 15 units can be connected in parallel — expanding total system capacity to over 240kWh — without platform changes or additional control hardware.

RAKOUR NSTLV-16K low voltage residential energy storage system — below 60V safe installation for home solar projects

Why Choose a Low Voltage Architecture?

Low-voltage systems below 60V reduce electrical hazard classification in most jurisdictions, simplifying installation permitting and reducing installer liability. Combined with RAKOUR's scalable battery system design, the NSTLV-16K delivers safety compliance and deployment flexibility within a single product platform.

Built on Lithium Iron Phosphate Battery Technology for Maximum Safety & Longevity

Key Features

The NSTLV-16K is built on a proven lithium iron phosphate battery (LiFePO4) cell chemistry — the industry benchmark for thermal stability, abuse tolerance, and long service life in residential energy storage applications. Unlike NMC-based systems, LiFePO4 eliminates thermal runaway risk without sacrificing cycle performance.

≥11,000-Cycle Lifespan — Verified, Not Estimated

At 90% DoD, the NSTLV-16K is rated for ≥11,000 cycles — translating to over 25 years of daily cycling under standard conditions. This is the highest cycle rating in RAKOUR's wall-mounted LV series, directly reducing lifetime cost-per-kWh for end users and strengthening installer proposals.

Scalable Battery System — Up to 15 Units in Parallel

As a fully scalable battery system, the NSTLV-16K supports up to 15 units in parallel via standard CAN / RS485 / RS232 communication. Total parallel capacity reaches 241kWh, enabling a single product platform to serve single-family homes through to large residential developments.

Multi-Layer BMS Protection — Built-In, Not Add-On

The integrated BMS provides real-time monitoring of cell voltage, current, and temperature, with automated protection against overcharge, over-discharge, over-current, and high/low temperature events — all managed autonomously without external control hardware.

IP54-Rated Enclosure — Indoor & Semi-Outdoor Ready

With an IP54 protection rating and an operating discharge range of -20°C to 60°C, the NSTLV-16K is qualified for installation in garages, utility rooms, and covered outdoor enclosures — giving installers flexible siting options without additional weatherproofing costs.

Full Specifications of the NSTLV-16K 51.2V LiFePO4 Battery Pack

Technical Specifications

The following parameters are drawn directly from RAKOUR's factory datasheet and IEC62619 certification report for the NSTLV-16K. All values reflect the production-grade 51.2V LiFePO4 battery pack — not prototype or estimated figures. Engineers and procurement teams should reference this section for system sizing, inverter matching, and compliance documentation.

Full Specifications of the NSTLV-16K 51.2V LiFePO4 Battery Pack

The following parameters are drawn directly from RAKOUR's factory datasheet and IEC62619 certification report for the NSTLV-16K. All values reflect the production-grade 51.2V LiFePO4 battery pack — not prototype or estimated figures. Engineers and procurement teams should reference this section for system sizing, inverter matching, and compliance documentation.

Electrical & Physical Parameters

Designed for solar battery storage deployments, the NSTLV-16K delivers 16.08kWh nominal energy at 51.2V, with a usable capacity of 14.47kWh at 90% DoD. Maximum continuous discharge current is 200A, supporting peak loads up to 10.24kW — sufficient for most whole-home battery backup power supply scenarios without parallel configuration.

Communication & Integration

Triple-port communication (CAN / RS485 / RS232) ensures this unit functions as a true solar inverter compatible battery across all major low-voltage inverter platforms. BMS address configuration via DIP switch allows seamless multi-unit parallel identification without additional communication hardware.

⚡ NSTLV-16K — Technical Specification Sheet | RAKOUR Energy

Category	Parameter	Value	Notes
🔋Energy	Nominal Energy	16.08 kWh	51.2V × 314Ah
🔋Energy	Usable Energy (90% DoD)	14.47 kWh	Recommended operating range
⚡Electrical	Nominal Voltage	51.2 V	Operating range: 46.4V – 57.9V
⚡Electrical	Max Charge / Discharge Current	200 A	Recommended charge: 140A
⚡Electrical	Max Continuous Power	10.24 kW	At nominal voltage
🧪Chemistry	Cell Chemistry	LiFePO4 16S1P	Zero thermal runaway risk
🔄Lifespan	Cycle Life	≥ 11,000 cycles	At 90% DoD, 25°C
📡Communication	Communication Ports	CAN / RS485 / RS232	DIP switch address config
🌡️Environment	Operating Temperature	-20°C ~ 60°C	Discharge; Charge: 0°C ~ 60°C
🛡️Protection	Enclosure Rating	IP54	Semi-outdoor suitable
📐Mechanical	Dimensions (W×D×H)	519 × 204 × 854 mm	Net weight: 127.3 kg
🏅Compliance	Certifications	IEC62619 / UN38.3 / CE / RoHS	Max 15 units in parallel

The Ideal Solar Battery Bank for Homes, Villas & Off-Grid Sites

Applications

The NSTLV-16K is designed for residential energy storage scenarios where reliable solar self-consumption, backup capability, and system scalability are simultaneously required. Its 16.08kWh capacity and 10.24kW peak discharge power make it viable as a standalone solar battery bank for average households, or as a base unit in larger parallel arrays for high-consumption properties.

Grid-Tied Solar Self-Consumption

Paired with a compatible low-voltage hybrid inverter, the NSTLV-16K stores excess PV generation for evening and overnight discharge — directly reducing grid import costs. At 14.47kWh usable capacity (90% DoD), a single unit covers the overnight consumption of most 3–4 bedroom households without grid dependency.

Off-Grid Solar Battery Systems

With discharge operation down to -20°C, IP54 weatherproofing, and support for up to 15 units in parallel (241kWh total), the NSTLV-16K is field-deployable as a primary off-grid solar battery for remote villas, rural homes, and island-mode microgrids — without requiring a separate battery enclosure cabinet.

Peak Shaving & Time-of-Use Optimization

For grid-connected sites with time-of-use tariffs, the NSTLV-16K charges during low-rate periods and discharges at peak-rate hours. The BMS communicates charge/discharge thresholds directly to the inverter via CAN or RS485, enabling automated TOU scheduling without a separate energy management controller.

Multi-Unit Residential & Developer Projects

EPC contractors supplying new residential developments can standardize on the NSTLV-16K as a platform unit — scaling from single-home installations to 15-unit parallel arrays using a single SKU and wiring topology. RAKOUR's OEM home battery manufacturer program supports pre-configured, private-labeled units for developer-branded energy packages.

Reliable Battery Backup Power Supply for Home During Outages & Grid Instability

Battery Backup Power Supply for Home

The NSTLV-16K functions as a high-capacity battery backup power supply for home use, delivering 14.47kWh of usable energy at 90% DoD and up to 10.24kW peak discharge power through a compatible low-voltage hybrid inverter. Backup switching is managed at the inverter level via real-time CAN or RS485 BMS communication — the battery continuously relays SOC, voltage, and temperature data, enabling the inverter to execute automatic load transfer without manual intervention.

How Long Can the NSTLV-16K Power Your Home?

At 14.47kWh usable capacity, runtime depends on connected load. A typical household drawing 500W average (lighting, refrigeration, router, phone charging) sustains approximately 28+ hours from a single unit. At 1.5kW average load, runtime is approximately 9–10 hours. For extended outage coverage, up to 15 units can be paralleled — scaling usable backup capacity to over 217kWh — without changing inverter configuration or communication architecture.

16kWh solar battery storage · battery backup power supply for home · home energy storage system runtime estimator

16.08 kWh Nominal Capacity

14.47 kWh Usable at 90% DoD

10.24 kW Peak Discharge Power

200 A Max Continuous Current

💡 How to read this table: Runtime = 14.47 kWh ÷ Average Load (kW). Actual results vary with inverter efficiency, temperature, and SOC. All figures based on RAKOUR NSTLV-16K at 90% DoD, 25°C.

🏷️ Type

🏠 Household Scenario

⚡ Avg Load (kW)

⏱️ Est. Runtime
Single Unit

📊 Runtime Visual

✅ Backup Suitability

🕯️

Essential Only Lighting, router, phone, fridge · off-grid solar battery minimum load

0.3 kW

~48 hrs

Max runtime

⭐ Excellent

🌙

Low Overnight Load Fridge, lighting, router, standby appliances · residential energy storage overnight

0.5 kW

~28 hrs

~28 hrs

⭐ Excellent

🍳

Moderate Household Kitchen appliances, TV, lighting, router · typical home battery daily use

1.0 kW

~14 hrs

~14 hrs

✔ Good

🏡

Average 3–4BR Home HVAC (partial), kitchen, lighting, devices · solar battery bank whole-home

1.5 kW

~9–10 hrs

~9.6 hrs

✔ Good

❄️

High-Load Home Full HVAC, EV trickle charge, appliances · battery backup power supply for home peak demand

3.0 kW

~4.8 hrs

~4.8 hrs

⚠ Consider Parallel

🏭

Max Discharge Load Near peak inverter output · 51.2V LiFePO4 battery pack stress scenario

10.24 kW

~1.4 hrs

~1.4 hrs

⚡ Parallel Required

Whole-Home vs. Essential Circuit Backup

When paired with a hybrid inverter in island mode, the NSTLV-16K can supply the entire AC load panel or be restricted to essential circuits, depending on inverter configuration. The BMS communicates discharge current limits directly to the inverter via CAN protocol, protecting the home energy storage system from overload without requiring separate protection hardware. Maximum continuous discharge current is 200A at nominal voltage — sufficient for simultaneous operation of high-draw appliances within inverter power rating limits.

⚡ Whole-Home vs. Essential Circuit Backup — NSTLV-16K Configuration Guide

Home energy storage system · Battery backup power supply for home · 16kWh solar battery storage

💡 Installer Tip: Mode selection is configured at the hybrid inverter level — no hardware change to the RAKOUR NSTLV-16K is required when switching between backup modes.

🔋 Comparison
Parameter

🏠 Whole-Home Backup Full AC panel · Island mode

🔌 Essential Circuit Backup Priority loads only · Optimized runtime

⚙️ Inverter Config island mode setting

Full load panel enabled via inverter island mode

Selected circuits isolated via sub-panel or inverter load output

⚡ Max Discharge peak backup power output

10.24 kW peak · 200A max continuous

Configurable · Limited by inverter load output rating

⏱️ Estimated Runtime battery backup duration home

~9–10 hrs at 1.5 kW average load Single unit

~28+ hrs at 500 W essential load Single unit

🛡️ Overload Protection BMS discharge current limit

BMS relays 200A discharge limit to inverter via CAN — no external relay needed

BMS enforces same limit; inverter restricts output to essential circuit capacity

📈 Scalability scalable battery system parallel

Up to 15 units in parallel >217 kWh usable for extended whole-home coverage

Single unit typically sufficient; parallel expansion still supported

🎯 Best Suited For off-grid solar battery use case

Short outages · High-consumption homes · Properties with EVs or HVAC

Extended outages · Cost-sensitive installs · Off-grid solar battery sites

🔧 Hardware Change home battery installation

None · Inverter software configuration only

Sub-panel may be required for circuit isolation

Solar Inverter Compatible Battery — Works With All Major Brands

Compatible Inverters

The NSTLV-16K is engineered as a true solar inverter compatible battery, communicating via CAN, RS485, and RS232 protocols through dual RJ45 ports (COM1 for inverter-to-BMS, COM2 for inter-battery parallel communication). Inverter battery mode should be set to Lithium with charging voltage configured to 57.6V and cut-off at 46.4V. BMS communication address is assigned via DIP switch, enabling clean multi-unit identification in parallel arrays without additional control hardware.

Verified Compatibility — Deye Inverter Series

RAKOUR provides dedicated wiring and configuration guides for Deye hybrid inverters across the 29.9kW–80kW series. For Deye models supporting dual battery inputs (BAT1 / BAT2), a single NSTLV-16K can be connected across both ports simultaneously using parallel shunting — increasing effective power output while reducing system cost. CAN port on the battery master module connects directly to the inverter's BMS1 port.

Broad Protocol Compatibility — CAN / RS485 / RS232

Beyond Deye, the NSTLV-16K's triple-protocol BMS communication supports integration with any low-voltage inverter brand that accepts standard CAN or RS485 battery communication — including Growatt, Solis, Victron, Goodwe, and others. The on-board protocol selector allows field-switching between communication standards without firmware modification, reducing installer setup time across mixed-brand project sites.

View Our Compatibility List

IEC62619 Certified Battery — Meets Global Safety & Export Standards

Certifications & Compliance

The NSTLV-16K carries a full certification stack required for residential energy storage products entering regulated markets across Europe, Asia-Pacific, and beyond. All certificates listed below are issued against the production model NSTLV-16K (51.2V / 314Ah / 16077Wh) and are available from RAKOUR upon distributor or OEM request — no third-party sourcing required.

IEC62619:2022 — Industrial Battery Safety Standard

The NSTLV-16K is tested and certified to IEC 62619:2022 (Report No. CCJC20241252701, issued by Shenzhen CCJC Technology Co., Ltd). This is the primary international safety standard for secondary lithium cells and batteries used in industrial applications, covering nine mandatory test categories including external short-circuit, thermal abuse, overcharge current and voltage control, and internal short-circuit. All nine applicable test clauses returned a Pass result against the production unit. For procurement teams and EPCs, this certification is the critical baseline for project-level compliance documentation of any IEC62619 certified battery in the field.

UN38.3 — Transport Compliance for Air, Sea & Road

The NSTLV-16K holds UN38.3 certification, satisfying international dangerous goods transport regulations for lithium-ion batteries. This enables compliant air freight, sea freight, and road transport of the 51.2V LiFePO4 battery pack — removing logistics barriers for global distributors and importers shipping to international project sites. RAKOUR provides MSDS documentation and UN38.3 test reports as a standard part of the export documentation package.

CE & RoHS — European Market Entry Ready

CE marking confirms the NSTLV-16K meets applicable EU product safety directives for the European market. RoHS compliance (Directive 2011/65/EU, amended by 2015/863) is verified per report No. AZT24062523C-E0, covering restriction of hazardous substances across all applicable material categories — a mandatory requirement for EU distribution of any home energy storage system. Both certificates cover the full NSTLV wall-mounted series including the 16K model.

Trusted OEM Home Battery Manufacturer — Private Label & Custom Solutions

OEM & ODM Support

RAKOUR operates as a factory-direct OEM home battery manufacturer, supplying the NSTLV-16K and the broader LiFePO4 residential storage product line to solar distributors, EPC contractors, and branded energy companies under full private-label terms. The manufacturing entity is based in Xiamen, Fujian Province, China, with all certifications — IEC62619, CE, RoHS, UN38.3 — held at the factory level and transferable under OEM agreements. There is no intermediary between the factory and the OEM partner, which directly impacts pricing, lead time, and documentation flexibility.

🏭 RAKOUR OEM & ODM Support — NSTLV-16K Private Label Program

OEM home battery manufacturer · private label solar battery storage · custom 16kWh energy storage system for distributors & EPC

🏭Factory Direct · No Intermediary

🏅Certs Transferable under OEM Agreement

🎨Full Brand Customization

🌍Global Export UN3480/UN3481 Ready

📦Sample in 7–15 Business Days

💡 For Distributors & Branded Energy Companies: All four OEM/ODM program pillars are detailed below. Each row corresponds to a specific customization or service deliverable available from RAKOUR on the NSTLV-16K platform.

🎨 Private Label &
White-Label Options OEM home battery branding · white-label solar battery storage

🖌️Enclosure & Colour

Custom enclosure colour and exterior finish available on request — matched to partner brand guidelines

🏷️Label & Packaging

Full-custom branding labels, retail/wholesale packaging design, and product naming under partner brand

💻BMS Display & ID

BMS firmware display and protocol identifier customizable to reflect partner brand — not RAKOUR default

📋Cert Re-Branding

IEC62619 CE RoHS UN38.3 All certs updatable to OEM brand name · subject to re-certification scope

⚙️ Custom Capacity &
BMS Configuration 51.2V LiFePO4 battery pack ODM · custom home energy storage system spec

🔋Capacity Options

10.2kWh 14.3kWh 16kWh Full wall-mounted series available within single ODM platform

📡BMS Thresholds

Adjusted charge / discharge current thresholds and cut-off voltages configurable per project requirement

🔌Protocol Presets

Custom CAN / RS485 communication protocol presets pre-loaded for target inverter brand — reduces installer setup time

📄Documentation

Localized user manuals and spec sheets in partner's required language · branded datasheets available

📦 MOQ, Sampling &
Lead Times OEM home battery order process · private label lithium iron phosphate battery timeline

🔬Pre-Production Sample

Evaluation samples dispatched within 7–15 Business Days from technical alignment sign-off

📊MOQ Policy

MOQs confirmed at quotation stage · applied at ODM configuration level · standard private-label MOQ lower than full ODM

🏗️Production Lead Time

Standard private-label NSTLV-16K: 30–45 Days from confirmed purchase order

📋Docs per Shipment

IEC62619 CE RoHS UN38.3 MSDS All provided as standard with every export shipment

🌍 Global Shipping &
Export Support off-grid solar battery global logistics · residential energy storage export compliance

✈️Transport Classification

UN3480 UN3481 Compliant for sea, road, and air freight under IATA / ICAO dangerous goods regulations

🚢Freight Options

FCL and LCL sea freight coordinated to major global ports · suitable for remote and off-grid project deployments

📑Incoterms

DAP EXW Available based on order volume · confirmed at quotation stage

📦Export Docs

Complete export documentation provided per shipment including lithium battery handling declarations and country-specific import compliance support

🤝 Start Your RAKOUR OEM / ODM Program Inquiry Today Factory-direct · IEC62619 certified · Full private label · 30–45 day production lead time

⚠️ All OEM/ODM customizations are scoped and priced on a per-project basis. RAKOUR Energy — Xiamen, Fujian Province, China · Factory-direct manufacturer of the NSTLV-16K 51.2V / 314Ah / 16kWh home energy storage system.

Frequently Asked Questions About the NSTLV-16K Solar Battery Storage System

Technical and commercial questions from solar installers, EPC contractors, and battery distributors — answered with factory-verified data from RAKOUR's production documentation and certification reports.

What inverters are compatible with the NSTLV-16K, and how is communication established?

The NSTLV-16K is compatible with any low-voltage hybrid inverter that supports standard CAN or RS485 battery communication. COM1 (RJ45) connects to the inverter's BMS port using CAN or RS485 protocol; the BMS dynamically communicates SOC, cell voltage, temperature, and charge/discharge current limits to the inverter in real time. Verified compatibility includes the Deye 29.9kW–80kW hybrid inverter series, with dedicated wiring guides available from RAKOUR for both single-port and dual-port (BAT1+BAT2 parallel shunt) configurations. For other inverter brands, set battery mode to Lithium, charging voltage to 57.6V, and cut-off to 46.4V. BMS protocol can be switched via the on-board selector without firmware modification.

How many NSTLV-16K units can be connected in parallel, and what is the maximum total capacity?

The NSTLV-16K supports up to 15 units in parallel using COM2 (RS485/RS232) for inter-battery communication, with each unit's BMS address assigned sequentially via DIP switch. At 15 units, total nominal energy reaches 241.2kWh, with usable capacity of approximately 217kWh at 90% DoD. Before parallel installation, verify that voltage difference between units is within 1V and that all units were manufactured within a 12-month window. On first installation, charge all units to full capacity before parallel commissioning to balance any initial SOC variance.

What certifications does the NSTLV-16K hold, and are test reports available for project submissions?

The NSTLV-16K is certified to IEC62619:2022 (Report No. CCJC20241252701 — all 9 applicable test clauses passed), UN38.3, CE (EMC Directive 2014/30/EU), and RoHS (Directive 2011/65/EU + 2015/863, Report No. AZT24062523C-E0). An MSDS is also available for customs and logistics compliance. All five documents are issued in English and available from RAKOUR upon distributor or OEM partner request, typically dispatched within one business day under NDA. These reports cover the production unit at 51.2V / 314Ah / 16077Wh and are accepted by project compliance teams in European, Asia-Pacific, and global markets.

Is the NSTLV-16K suitable for off-grid solar battery installations in remote or harsh environments?

Yes. The NSTLV-16K is rated for discharge operation from -20°C to 60°C and carries an IP54 enclosure rating, making it suitable for installation in garages, covered outdoor enclosures, and remote off-grid sites without additional weatherproofing. Charging is limited to 0°C–60°C — installers should account for this in cold-climate system design. The unit operates at altitudes up to 2,000m and tolerates humidity up to 85% RH. For extended off-grid solar battery bank deployments, up to 15 units can be paralleled to over 217kWh usable capacity — sufficient for multi-day autonomy in low-to-moderate consumption off-grid residences without generator backup.

What is the actual cycle life of the NSTLV-16K, and how does it compare to other LiFePO4 home batteries?

The NSTLV-16K is rated at ≥11,000 cycles at 90% DoD, the highest cycle rating in RAKOUR's wall-mounted LV series. This translates to over 25 years of daily cycling under standard conditions (25°C, nominal voltage), significantly exceeding the typical 6,000-cycle rating of comparable lithium iron phosphate battery products at equivalent DoD. The ≥11,000 cycle figure is derived from the production cell chemistry (LiFePO4, 16S1P configuration) and is reflected in RAKOUR's factory datasheet — not extrapolated. Higher cycle life directly reduces the lifetime cost-per-kWh for end users and strengthens the ROI argument in installer proposals and developer project models.

What warranty does RAKOUR offer on the NSTLV-16K, and what does it cover?

The NSTLV-16K carries a 5-year warranty from RAKOUR, covering manufacturing defects under normal operating conditions as defined in the product user manual. Warranty claims require that the battery has been installed, operated, and maintained in accordance with RAKOUR's documented specifications — including correct inverter voltage settings, operating within rated temperature and current limits, and no unauthorized hardware modifications. The warranty does not cover damage resulting from improper installation, operation outside rated parameters, or physical damage during shipping if not reported on receipt. For OEM partners, warranty terms and after-sales support structure are confirmed as part of the OEM agreement.

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