Stacked Lithium Battery System - Modular & Safe

Stacked Energy Storage Lithium Battery Low Voltage

Modular Scalability
Expandable from 15kWh to 35kWh with stackable design, adapting to evolving energy demands effortlessly.
Enhanced Safety & Sustainability
Cobalt-free LiFePO4 battery ensures explosion-proof operation, ideal for indoor/outdoor installations.
High-Powered Backup Capability
Supports off-grid and emergency backup modes with high discharge rates for critical loads during outages.
Easy Installation
Plug-and-play wireless connectivity and modular units reduce deployment time by 50% vs traditional systems.
Universal Compatibility
Integrates with 99% of hybrid inverters via CAN/RS485 protocols, featuring independent BMS per module for precise control.

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NK-ESS-3P-51.2

Battery Module Type: LFP
Normal Voltage: 51.2V
Capacity: 5120Ah/Pack
Energy:5.8Wh
IP Grade: IP21
Cycle Life: 4000 times(80%DOD)
Dimensions: 620*420*394 mm/Pack
Weight:45kg/Pack
Expansion: Max. 6 towers can be connected in parallel

Introduction

A high-performance modular ESS solution for luxury residences and commercial solar systems, featuring built-in BMS and 6,000-cycle lifespan. Scalable from 5.12kWh to 21.31kWh via stackable 51.2V/100Ah units (market-standard 48V/300Ah), operating reliably from -20°C to 60°C. Integrates seamlessly with hybrid/off-grid inverters, offering IP21 protection, smart monitoring, and OTA upgrades for optimized energy autonomy.
Application

Designed for luxury villas, off-grid cabins, and commercial solar systems, our LiFePO4 battery delivers 4,000+ cycles and seamless scalability (5.12kWh–21.31kWh). Withstand -20°C–60°C extremes, IP21 protection, and OTA monitoring, it ensures 24/7 backup while slashing energy costs. Universally compatible with hybrid inverters via CAN/RS485, this future-ready solution combines military-grade safety with silent, space-saving installation.
TRUSTED WORLDWIDE

Namkoo lithium batteries power homes across 100+ countries, with 1,000+ satisfied families choosing our reliable energy storage solutions. Experience peace of mind knowing your household enjoys uninterrupted, clean electricity – day and night. Explore real-life success stories in our RESIDENTIAL PROJECTS.
PACKING & DELIVERY

As a top-tier energy storage manufacturer, Namkoo maintains ready-to-ship lithium battery inventories across Asia, Africa, Caribbean, and Europe. Every unit is securely packed in certified wooden crates/pallets for maximum protection. We deliver worldwide via DHL, UPS, TNT, FedEx, EMS, or Sea Freight – ensuring your power solution arrives safely and fast.
COMPANY INTRODUCE

Guangdong Namkoo Power Co.,Ltd. have more than 15 years factory experience for solar power products, power inverter pure sine wave products, solar battery storage,solar appliance products.More than 3000 successfully case have installed in 100+ countries.Germany technology, China price, Global service. Sincerely welcome everyone JOIN US and develop solar business.
FAQs

Q

Are you factory?

Namkoo is the solar & ESS manufacturer specialized in energy storage system, solar battery and solar inverter over 10 years. Apart from it, we can also provide ODM and OEM services of solar energy system for our customers. You could kindly leave your contact on our company website, so we could send you our factory video.

Q

Where is your factory? Can I visit your factory?

Located in Guangdong Province, China. Yes sure, we can arrange and make an appointment in advance for you.

Q

Can send me a sample for free?

Yes, you could kindly purchase and pay it first, we will reduce this cost on your next order.

Q

What is the cycles times of your battery?

For solar lithium battery is 4000-6000 cycle times.

Q

Do you have AGM battery?

Yes sure, the hot selling models are 12v 100ah, 12v 200ah.

Q

What is the difference between gel battery and lead acid battery?

Gel and lead acid are different materials, gel material is more durable and longer lifespan which reach 5-6 years, lead acid battery is 3-5 years.

Q

What is the difference between solar lead acid battery and LifePO4 solar lithium battery?

Lead acid and LifePO4 are different materials.

Different lifespan, lead acid battery is 3-5 years and lifePO4 solar lithium battery is 10 years.

Lead acid battery has excellent performance at both low and high temperatures, and lifePO4 solar lithium battery has high temperature resistance.

Different warranty, lead acid battery is 12 months and lifePO4 solar lithium battery is 36 months.

LifePO4 solar lithium battery’s weight is light than lead acid battery.

Lead acid battery is 85% efficiency and lifePO4 solar lithium battery are 100% discharge.

Different production technologyand internal structures.