The Solar Step
5.5KVA Sunsynk Hybrid Inverter MPPT + 2x Dyness 5.12kWh (BX51100) Lithium Battery
5.5KVA Sunsynk Hybrid Inverter MPPT + 2x Dyness 5.12kWh (BX51100) Lithium Battery
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5.5KVA Sunsynk Hybrid Inverter + 2x Dyness 5.12kWh Lithium Battery
Description:
Reliable Hybrid Solar Power Solution
The Sunsynk 5.5KW Hybrid Inverter & Dyness 5.12kWh Lithium Battery Combo is a high-performance energy storage system designed for residential and commercial use. Featuring advanced MPPT solar charging, seamless on-grid and off-grid functionality, and intelligent power management, this kit helps you maximize solar energy utilization while reducing electricity costs.
Sunsynk 5.5KW Hybrid Inverter – Smart & Efficient
Higher yields.
- Improve the self-consumption ratio by up to 80%, reducing your electricity bill.
- DC/AC ratio up to 1.3, completely suitable for double-side PV modular.
- Two MPPT designs, Max. the efficiency of 97.6%.
User-friendly.
- LCD Touch screen and buttons, easy operation.
- Compatible with lithium-ion battery and lead acid battery.
- Web browser and mobile App monitoring are supported.
Reliable.
- PV lighting protection, Anti-islanding protection, Leakage current protection, etc.
- Support store energy from DG when needed, and ensure the system working within 7*24H.
- IP65 protection degree, adapt to indoor and outdoor use.
- Automatically switch from on-grid to off-grid mode within 5ms.
- Zero exporting function, the fast reaction within 200ms in zero export mode.
Smart.
- Programmable charging and discharging schedule.
- Both wind turbines and solar panels can be connected as DC input power.
- Max. 16 units can be paralleled for higher system power.
- Retrofitting of existing solar system to energy storage system.
Battery Input Data
- Battery Type: Lead-acid or Li-lon
- Battery Voltage Range (V): 40-60V
- Max. Charging Current (A): 120A
- Max. Discharging Current (A): 120A
- Charging curve: 3 Stages/Equalization
- External Temperature Sensor: Optional
- Charging Strategy for Lithium Battery: Self-adaption to BMS
PV String Input Data
- Max. DC Input Power (W): 6500W.
- PV input Voltage (V): 370V (100V-500V).
- MPPT Range (V): 125-425V.
- Start-up Voltage (V): 150V.
- PV Input Current (A): 11A + 11A.
- No. of MPPT Trackers: 2
- No. of Strings Per MPPT Tracker: 1+1.
AC Output Data
- Rated AC Output and UPS Power (W): 5000W
- Max AC Output Power (W): 5500W
- Peak Power(off-grid): 2 times of rated power, 10 S.
- AC Output Rated Current(A): 21.7.4A
- Max.AC Current(A): 25A
- Max Continuous AC Pass-through(A): 35A.
- Output Frequency and Voltage: 50Hz; 240Vac,
- Grid Type: THD<3%(Linear load<1.5%).
- Current Harmonic Distortion: THD<3% (Linear load<1.5%).
Efficiency
- Max. Efficiency: 97.60%
- Euro Efficiency: 96.50%
- MPPT Efficiency: 99.90%
Protection
- PV Arc Fault Detection: Integrated (Except European Type)
- PV Input Lightning Protection: Integrated
- Anti -islanding Protection: Integrated
- PV String Input Reverse Polarity Protection: Integrated
- Insulation Resistor Detection: Integrated
- Residual Current Monitoring Unit: Integrated
- Output over Current Protection: Integrated
- Output Shorted Protection: Integrated
- Output over Voltage Protection: Integrated
Certifications and Standards
- Grid Regulation: UL1741, IEEE1547, RULE21, VDE0126, AS4777, NRS2017, G98, G99, IEC61683, IEC62116, IE61727
- Safety Regulation: IEC62109-1, IEC62109-2
- EMC: EN61000-6-1, EN61000-6-3, FCC 15 class B
General Data
- Operating Temperature Range ( C ): -25—60 C , >45 C Derating
- Cooling: Fan
- Noise (dB): <30
- Communication with BMS: RS485; CAN
- Weight (kg): 20.5
- Size (mm): 580 X 330 X 208mm
- Protection Degree: IP65
- Installation Style: Wall-mounted
- Warranty: 5 years
Dyness 5.12kWh 48V (BX51100) Lithium Battery – Long-Lasting & High Performance
Reliable & Scalable Lithium Battery for Solar Storage
The Dyness BX51100 5.12kWh Lithium Battery is a high-performance energy storage solution designed for home and commercial solar installations. Built with LiFePO4 (LFP) technology, it ensures enhanced safety, longevity, and efficiency. The battery supports parallel configurations of up to 40 modules, providing a scalable system for larger energy storage needs.
Key Features:
High-Capacity Energy Storage
- 5.12kWh battery module for efficient energy backup
- 51.2V DC system with a 100Ah capacity
- Supports continuous charge/discharge at 50A (75A max)
Advanced Lithium Iron Phosphate (LFP) Technology
- Superior thermal stability and extended battery lifespan
- Safe and stable operation with built-in protection features
Smart Energy Management & Connectivity
- Supports CAN & RS485 communication for system monitoring
- Compatible with wall-mounted and rack-mounted installations
Scalable System for Large Power Demands
- Up to 40 battery modules can be connected in parallel
- Flexible system design for residential and commercial setups
Ideal Applications
- Residential and commercial backup power solutions.
- Load shedding protection for uninterrupted power supply.
- Off-grid and grid-tied hybrid solar systems.
- Renewable energy storage for businesses and homes.
Warranty & Installation Requirements
- 10-year warranty on the Dyness battery and 10-year warranty on the Sunsynk inverter.
- Must be installed by a qualified electrician with SANS 10142 compliance.
- Certificate of Compliance (COC) required for warranty validation.
- Warranty claims without proper installation documentation may be void.
Let customers speak for us
from 105 reviewsSystem works very well, happy with purchase.

Very impressive store. Friendly service. Ruan is an excellent salesman and very professional.
We bought the 11kva system last week. Customer service is excellent, delivery excellence, installed and working like 4 paired horses bulling a wagon. We're thrilled and keep up the great work guys.
A big thank you to The Solar Step team for the excellent service, I am very happy with my product!
This place has amazing service the staff are so friendly and fast to help i would highly recommend
This place has amazing service the staff are so friendly and fast to help i would highly recommend
Great products that saves you money and preserve energy.
Great products that saves you money and preserve energy.
Friendly, helpful, great customer service.
The staff was very helpful and they were quick to respond to my messages aswell as give me the best system that fits into my budget and that is also in great quility
Outstanding Service!
I had an amazing experience with this company! From start to finish, their team was professional, knowledgeable, and efficient.
Good service, frienfly assistance, great products. Just overall amazing
A chap named Ruan assisted me with a few items I need. He was very helpful and knowledgeable. Will highly recommend The solar step and Ruan. Keep up the good work
This place has the best service, the staff are so friendly and helpful would recommend

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