Dyness Junior Box-DE LiFePO4 Battery
- Category: Dyness LiFePO4 Battery
- Features
Product Description
Dyness Junior Box-DE 1.6kWh LiFePO4 Balcony Solar Storage System
The Dyness Junior Box-DE is a compact LiFePO4 battery energy storage system designed for balcony solar applications and residential energy management. With a 1.6 kWh storage capacity, it stores excess solar energy during the day for use when household electricity demand increases.
Featuring integrated MPPT functionality, an intelligent battery management system (BMS), and app-based monitoring, the Junior Box-DE helps improve solar energy self-consumption. Its stackable design supports expansion to a total capacity of up to 6.4 kWh, offering greater flexibility for different household energy needs.
With an IP-rated enclosure, RS485 communication, and a maximum output power of 800 W, the Dyness Junior Box-DE provides a space-saving solution for balcony PV systems, small residential solar installations, and everyday energy storage.
Key Features of Dyness Junior Box-DE
1.6 kWh LiFePO4 Battery: Stores surplus solar energy for later household use.
Expandable to 6.4 kWh: Stackable design supports up to four compatible battery units in the specified configuration.
Integrated MPPT Controller: Supports solar PV input up to 1,200 W for efficient solar energy harvesting.
800 W Maximum Output: Supplies stored energy to compatible household energy systems.
Smart BMS Protection: Monitors battery operation and supports safe charging and discharging.
App-Based Monitoring: Allows users to monitor system operation and energy storage status.
IP65 Protection: Designed to provide protection against dust and water jets under specified test conditions.
Long Cycle Life: Rated for at least 8,000 cycles under specified conditions.
Flexible Operating Temperatures: Supports charging from 0°C to 55°C and discharging from -20°C to 55°C.
Compact Balcony Solar Design: Provides a space-saving energy storage solution for residential PV applications.
10-Year Warranty: Subject to the manufacturer's applicable warranty terms and conditions.
Detailed Specifications
Parameter | Specification |
| Model | Junior Box-DE |
| Battery Chemistry | LiFePO4 (Lithium Iron Phosphate) |
| Nominal System Energy | 1.6 kWh |
| Maximum Expanded Energy | 6.4 kWh |
| Expansion Method | Stackable |
| Maximum Configuration | 4 units total (1 Junior Box + 3 compatible expansion modules) |
| Maximum PV Input Power | 1,200 W |
| Maximum PV Input Voltage | 65 V DC |
| MPPT Voltage Range | 18–60 V DC |
| Maximum Input/Output Current | 30 A |
| Maximum Output Power | 800 W |
| Battery Management | Intelligent BMS |
| Monitoring | Mobile App |
| Communication Interface | RS485 |
| Protection Rating | IP65 (verify against the German datasheet revision) |
| Cycle Life | ≥8,000 cycles under specified conditions |
| Charging Temperature | 0°C to +55°C |
| Discharging Temperature | -20°C to +55°C |
| Dimensions (W × D × H) | 420 × 283.5 × 245 mm |
| Weight | 19.4 kg |
| Warranty | 10 years, subject to warranty terms |
| Certifications / Standards | UN38.3, CE-EMC, IEC 62619, IEC 62109, CE-RED; regional approvals may vary |
FAQAbout Dyness Junior Box-DE
Q1: What is the capacity of the Dyness Junior Box-DE?
The Dyness Junior Box-DE has a nominal energy capacity of 1.6 kWh per unit and supports expansion to a maximum of 6.4 kWh in the specified configuration.
Q2: What type of battery does the Junior Box-DE use?
The Junior Box-DE uses lithium iron phosphate (LiFePO4 or LFP) battery technology with an intelligent battery management system (BMS).
Q3: How many Junior Box battery units can be connected?
The specified system configuration supports up to four units in total, comprising one Junior Box and three compatible expansion modules.
Q4: What is the maximum PV input power of the Dyness Junior Box-DE?
The Junior Box-DE supports a maximum PV input power of 1,200 W, with a maximum input voltage of 65 V DC and an MPPT voltage range of 18–60 V DC.
Q5: What is the maximum output power of the Junior Box-DE?
The Junior Box-DE has a maximum output power rating of 800 W, subject to system configuration and applicable regional requirements.
Q6: Can I monitor the Dyness Junior Box-DE remotely?
Yes. The Junior Box-DE supports app-based monitoring and RS485 communication for system monitoring and management.
Q7: Is the Dyness Junior Box-DE suitable for outdoor installation?
The referenced datasheet specifies IP65 protection. Installation must still follow the manufacturer's instructions, including requirements for weather exposure, mounting, and electrical safety.
Q8: What is the cycle life of the Junior Box-DE?
The Junior Box-DE is rated for at least 8,000 cycles under specified test conditions. Actual cycle life depends on operating conditions and usage.
Q9: What is the operating temperature range of the Junior Box-DE?
The specified charging temperature range is 0°C to +55°C, while the discharging temperature range is -20°C to +55°C.
Q10: What applications is the Dyness Junior Box-DE designed for?
The Junior Box-DE is designed for balcony solar systems, residential PV energy storage, solar self-consumption, and small-scale household energy management.


