EEL 48V 16S Server Rack Battery V4 Box DIY Stackable Kits with JK V15 BMS Box Energy Storage EU Stock

Specification(EEL V4-JK Box)

Poland Stock | JK BMS 51.2V 280–314Ah Smart Home Energy Storage System

Fully equipped with integrated BMS, 4-channel 2A active balance and all installation accessories — plug and power made simple.

⚡ Empower Your Home with True Energy Independence

Designed for homes with limited space but high energy demands, this compact powerhouse fits perfectly in apartments, townhouses, or off-grid cabins.

Scalable storage, effortless setup:

Stack up to 4 units vertically to save floor space.

Connect up to 16 packs in parallel, expanding capacity from 14.3 kWh to 230 kWh.

Experience next-level energy flexibility without sacrificing style or space

Safety Built from the Core Up

Multi-Layer Voltage Protection

Each cell is tracked in real time with ±20 mV precision, delivering over twice the accuracy of conventional systems. This ensures consistent voltage balance and longer cell lifespan.

All-Around Thermal Protection

Integrated with 6 smart temperature sensors — 4 for cells, 1 for ambient air, and 1 for MOS components — all accurate within ±2 °C.

Smart thermal control system

High-Temp Shield: Automatically pauses charging at 55 °C and gradually limits power at 50 °C to prevent stress on components.

Cold-Weather Mode: Activates internal heating below 0 °C, ensuring reliable discharge even in -20 °C environments.

Engineered Exterior Protection

Encased in a dust- and moisture-resistant IP20 shell, perfect for garages and basements.

Designed with fully enclosed terminals to eliminate accidental contact — certified for CE safety compliance.

Battery cell comparison

Brand	EVE	CATL	CALB
Grade	A	A	A
Actual test capacity	EVE314 ≥330AH	CATL280 ≥300AH	314AH-320AH
Cycle life（70%SOH）	8000	7000	8000
Calendar life	15 years	15 years	10 years
Technology	Top-Tier. EVE has a stellar reputation for quality control and product consistency, built over years in consumer electronics.	Energy density slightly higher than EVE, stable olivine structure. Robust safety with cooling features.	Solid & Proven. As a specialized LFP producer, their products are inherently safe (LFP chemistry) and are known for reliable performance in their target markets.
Reputation	Robust & Stable LFP: Focused on long life and reliability. LMFP upgrade offers higher voltage and ~15% more energy density than standard LFP.	Gold Standard. As the world's largest maker, their reputation is built on reliability and safety. Their cells undergo rigorous testing.	Standard, Optimized LFP: Focus is on achieving excellent cycle life, safety, and low cost through manufacturing efficiency, not necessarily cutting-edge density.
Production date	2025	2025	2024-2025
Warranty	10 years	10 years	10 years

Specification(V4-JK Battery Box)

Battery Type:280-330Ah Battery Cells (208*174*72mm)  
Material: Stainless Steel
Communication: CANBUSand RS485(accept both)
BMS: 48V 16S V15 JK-PB2A16S20P
Nominal Voltage:51.2V
Current :200A
Warranty:10 Years
Battery Pack Type: Stackable
OEM/ODM: Available
Weight:29kg
Enclosure Dimensions: 698*410*250mm  

Parts List

1 * V4 Battery Case (Bottom case, Front Bracket, 2*Top Bracket, Front Panel, Top cover)
16 * Epoxy board(Between cell and the case)
2 * PCB Board(with sheet copper wires) for BMS and Cells Connection+2*matched EVA Tape
1* JK 4.3inch V19 display screen
1 * Weak electric switch
1 * 48V 16S V19 JK BMS(JK-PB2A16S15P/JK-PB2A16S20P)+2*BMS wires
1 * 250A Circuit breaker
2*  Upgraded Battery 400A Terminals (P+ Terminal and P- Terminal)
3* Long Flexible busbars (BMS connection)
15 * Flexible busbars (Cells connection)
4 * Handle
4 * Upper and Lower Latch lock
10* EVA Tape+Bar tape (Between cells)
Other Small Accessories 

Packaging Details:

Package dimensions: 80.2 x 51.2 x 34 cm (31.57 in x 20.16 in x 13.39 in)
Gross weight per unit: 28 kg (61.73 lb)

JK Battery Box BMS software:

https://voltaspir.com/drive/folders/1T7Amp5mqtl4twecgZRhJCK4hoWncbNDE

UPS/DHL DDP Free shipping to(5-7 working days for delivery):

PL,CZ,SK,AT,DE,HU,BE,BG,DK,EE,FR,NL,LT,LV,LU,MC, RO, HR, FL, ES, SI, SE, IT, GR, IE, PT

🥇 Official Warranty & Service Commitment 🥇

Since 2019, EELbattery has been at the forefront of innovation in energy storage technology — built on reliability, trust, and customer satisfaction.

We’ve kept one promise:Easy Energy Life

To stand behind this promise, we provide the following guarantees:

1. Full Warranty Protection

2. Extended Technical Support — 10 Years

3. Customer-First Service Commitment

Lifetime Care

Even after your warranty period ends, we continue offering maintenance advice and system upgrade recommendations at a reasonable cost — ensuring your battery system stays in peak condition for years.

How to Reach Us

📧 Email: [email protected]

📱 WhatsApp: +86 131 7462 5515