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EU 15kWh Lifepo4 DIY Battery Pack CATL280 Grade A EV Class JK V19 Box Home Solar Storage 2A Active Balancer V19 BMS Full Kits Vat Free
EU 15kWh Lifepo4 DIY Battery Pack CATL280 Grade A EV Class JK V19 Box Home Solar Storage 2A Active Balancer V19 BMS Full Kits Vat Free
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EU 15kWh Lifepo4 DIY Battery Pack CATL280 Grade A EV Class JK V19 Box Home Solar Storage 2A Active Balancer V19 BMS Full Kits Vat Free
CATL280 Specification :
Nominal Capacity : 280AH
Typical Voltage :3.2V
AC Impedance Resistance(1KHz) : Below 0.25 mO
Standard charge and discharge current : 0.5C/0.5C
Standard Cut off voltage of charge/ discharge: 3.65V/2.5V
Maximum Continuous charge/ discharge : 1C/1C
Maximum Pulse charge/ discharge (30s) : 2C/2C
Recommended scope of SOC : 10%~90%
Charging Temperature : 0C~55C
Discharging Temperature : -20C~55C
Storage humidity range : <90%
Self-discharge rate per month : Below 3%/month
Battery weight : 5.4 kg

Rated Energy: 15kWh – 16kWh
Configuration: 1P16S
Nominal Voltage: 51.2V
Working Voltage: 42V – 58.4V
Nominal Capacity: 280Ah – 320Ah (without batteries)
Rated Charge/Discharge Current: 100A / 200A @ 25±2℃
Maximum Charging Current: 200A @ 25±2℃
Maximum Discharge Current: 200A @ 25±2℃
Working Temperature:Charge: 0°C to 40°C
Discharge: -20°C to 60°C
Humidity: 5% – 95%
Altitude Limited: 0 – 3000m
Weight: 28 kg ± 3 kg (without batteries)
Dimension: 797 × 415 × 270 mm
Storage Temperature and Humidity:
Within one month of storage: -10°C to 35°C
Within three months of storage: 25°C ± 2°C
Humidity: 65% ± 20% RH
Cycle Life: 8,000 cycles @ 25°C, 50A charge and discharge current, 80% DOD
IP Grade: IP20











V19 BMS +2A Active Balancer
🚀 Core Intelligence & Safety
🧠 Advanced Active Balancing – Equalizes cell voltages in real-time for maximum pack capacity, lifespan, and safety.
⚡ Ultra-High Precision Monitoring – Monitors voltage, current, and temperature with extreme accuracy for reliable operation.
🛡️ Multi-Layer Protection – Comprehensive safeguards against overcharge, over-discharge, over-current, short circuit, and temperature extremes.
⏱️ Real-Time Data & Alerts – Instant reporting of cell status and faults via multiple communication interfaces.
🔄 Superior Performance & Longevity
📈 Extends Battery Life – Active balancing and precise control significantly increase cycle life and usable capacity.
🔋 Optimizes Energy Utilization – Ensures every cell is used efficiently, preventing premature degradation.
🌡️ Intelligent Thermal Management – Monitors and responds to temperature changes to maintain optimal operating conditions.
🔧 Robust Integration & Usability
📡 Dual Communication (CAN & RS485) – Seamless integration with inverters, chargers, and monitoring systems.
📊 Comprehensive SOC/SOH Calculation – Accurate state-of-charge and state-of-health estimation for reliable system planning.
🧩 Modular & Scalable Design – Adaptable for various battery configurations (like 16S LiFePO4) and pack sizes.
🖥️ User-Friendly Monitoring – Accessible data logging and system status via dedicated PC software or mobile apps.
🏭 Built for Reliability
🏗️ Industrial-Grade Components – Designed for stable operation in demanding environments.
🔒 Enhanced System Security – Protects the battery pack from critical failures, ensuring safe and continuous operation.
💎 Proven Stability – A trusted BMS solution for residential, commercial, and light industrial energy storage systems.
The JKV19 BMS is not just a protector—it's an intelligent performance optimizer that maximizes the safety, lifespan, and efficiency of your lithium battery system.






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