RD557 PV-Storage-Charging All-in-one Energy Storage System | 5-30kWh

20 reviews

RD557 PV-Storage-Charging All-in-one Energy Storage System | 5-30kWh

$4,999.00

Capacity

5.12kWh
10.24kWh
15.36kWh
20.48kWh
25.6kWh
30.72kWh

Capacity

RD557 combines high-efficiency solar panels, a robust energy storage system, and an intelligent EV charger, can autonomously store energy without energy input.
RD557 adapts to various energy needs and environmental conditions. Whether you’re charging an electric vehicle, powering a home, or preparing for emergencies, RD557 has you covered.
Built to withstand extreme weather conditions, with an IP54 protection degree, RD557 ensures reliable performance in harsh environment.

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Details

PV-Storage-Charging Integrated

The photovoltaic system provides clean power, the energy storage realises the storage and peaking of electric energy, and provides charging services for electric vehicles through intelligent charging piles, realising the efficient use of energy and low-carbon development.

Modular Design for Expansibility

Features an expandable battery system, allowing you to increase its capacity as needed. Perfect for extended trips or larger power needs, this flexibility ensures you have ample energy to power multiple devices and appliances.

Built-in DSP and SPWM Technology

Integrate advanced DSP and SPWM control technology maximizes energy output efficiency through the DSP and SPWM technique,achieving true energy conservation and efficient utilization.

6 REASONS to CHOOSE RD557

Worry-Free with Expandable Up to 30kWh Batteries

Whether providing back up power during power outages, ensuring the continued operation of critical equipment, or as a mobile home charging station, the RD557 can provide reliable power support so that you no longer have to worry about power storage

√7kw PV Input Power for Extreme Charging Speed
√5-30kWh Batteries Meets different Requirements
√5.5kw Power Output Covers Most Appliances

Minimize Cost with Energy Self-Sufficiency

RD557 can generate electricity through solar energy, reducing dependence on the power grid and achieving energy self-sufficiency. In addition to solar power generation, the energy storage system can store electricity during periods of low electricity costs and use it during high-cost periods, thereby reducing electricity costs

√Energy Self-Sufficiency
√Aviod High Electricity Prices Period
√Low Cost Construction and High Economic Efficiency

Intelligent Control at Your Fingertips

With the exclusive remote control APP, you can easily manage energy storage and use anythime, anywhere.

Whether it is adjusting power output, monitoring energy flow, or optimizing energy-saving mode, you can do everything on your mobile phone or pad with just one click.

The smart connection not only brings convenience, but also brings a truly intelligent experience to your life and work.

Advanced Energy Storage Technology with DSP and SPWM Technique

In the pursuit of efficient energy management, RD557 not only integrate advanced DSP and SPWM control technology

but also strive to improve the efficiency and reliability of energy storage.

Whether in home, commercial or industrial applications, RD557 can make conversion more efficient and stable,

maximizes energy output efficiency through the DSP and SPWM technique,

achieving true energy conservation and efficient utilization.

Let users enjoy a smarter and more environmentally friendly energy management experience

Easy Installation with 20 Minutes Individually

No more complex installation procedures, RD557 redefining standards with it's easy and fast installation process.

It only takes 20 minutes to complete the installation and configuration of the equipment.

Choose RD557, enjoy an efficient, convenient and advanced energy future.

Model	RD557-5	RD557-10	RD557-15	RD557-20	RD557-25	RD557-30
Battery Data
Stack Number	1	2	3	4	5	6
Usable Energy	5.12kWh	10.24kWh	15.36kWh	20.48kWh	25.6kWh	30.72kWh
Battery Type	LiFePO4
Single Battery Energy	5.12kWh
Battery Voltage Range	41.6~58.5A
Inverter Data
Max. PV Input Power	7kW
PV Input Voltage Range	150~500V
MPPT Operating Voltage Range	120~430V
Number of MPP Trackers	2
Number of Strings per MPPT	1
Max.Input Current per MPPT	15A/20A
Nominal Utility Grid Voltage	220/230/240V
Nominal Utility Grid Frequency	50/60Hz
Rated Power Output to Utility Grid	5kW
Max. Apparent Power Output to Utility Grid	5.5kW
Back-up Rated Power	4500
Switch Time	<10ms
EV Charger Data
LCD Display	4.3-inch Color Touchscreen (Optional)
User Authentication	RFID (ISO / IEC 14443) / APP
LED Indicator	Green / Blue / Red
Charger Connector	IEC 62196-2 Type 2 (SAE J1772 Type 1 Optinal)
Energy Measuring	Embedded Meter, with 1% Accuracy
Communication
Backend	Bluetooth, Wi-Fi (4G / Ethernet Optional)
Backend Protocol	OCPP-1.6J (OCPP 2.x Coming Soon)
Protection
Residual Current Protection	Type A 30mA + DC 6mA
Electrical Protection	Over/Under Voltage Protection, Over Current Protection, Short Circuit Protection, Over Temperature Protection, Lightning Protection, Ground Protection, Surge Protection
Environmental
Operating Temperature	-30℃ ~ +50℃
Storage Temperature	-40℃ ~ +85℃
Operating Humidity	Max. 93% RH, Non-condensing
Operating Altitude	≤2000m
IP, IK Level	IP55, IK08
Cooling Method	Natural Cooling
Mechanical
Product Dimension (WxDxH)	270 x 135 x 365mm
Package Dimension (WxDxH)	325 x 260 x 500mm
Weight	5kg (Net) / 6kg (Gross)
Charging Cable Length	5m (Customizable)
Mounting	Wall-mount and Stand-mount
Certifications
Certificate	EN 61851-1 2019, IEC 62955 2018, IEC 61008-1 2010, IEC/EN 62196-1
Safety	TUV, CE

Service and Support

Consultation
Customization
Installation
Maintenance

Let’s Answer Your Questions

Q1: Which vehicle models are compatible?

Our chargers support multiple charging connector standards including NACS, CCS, and CHAdeMO, making them suitable for most mainstream vehicle models. For specific compatibility details, please consult your vehicle manual.

Q2: What is an AC charger best used for?

AC chargers work at 7–22kW and take 3–10 hours for a full charge. They're ideal for overnight depot charging and cost-effective to install and operate. Best for home, parking lots, and apartments where charging during off-hours fits your schedule.

Q3: What electrical setup do I need for my AC charger?

Just standard 230V/400V three-phase power. AC chargers need minimal electrical upgrades—no complex infrastructure required.

Q4: When should I choose a DC fast charger?

All-in-one DC chargers combine power conversion and charging port in a single unit. Choose this for space-limited sites needing fast 10–60 minute charging. Simple installation, compact footprint.

Q5: What is a Smart Mobile charger with ESS?

It's a multifunctional charger combining DC charger + battery storage. Charge vehicles independently, operate anywhere—remote sites, temporary locations, events. No permanent grid connection needed.

Q6:What should I do if my charger malfunctions?

Most issues can be resolved remotely through our customer service hotline. If on-site service is required, we will dispatch certified technicians to resolve the problem after confirming the after-sales service schedule.

Q7: Can TDC chargers integrate with my fleet management system?

Yes. All chargers connect to TDC Hub, which tracks sessions, costs, vehicle health, and charging schedules. We support integration with your existing fleet management software.

Q8: What are the benefits of using the TDC ev charger?

Comprehensive product line: AC, DC, EV Charger with Advertising Screen, Split-type DC, and Smart Mobile Charger with ESS—matching every need

Smart software: TDC Charge and TDC Hub not only provide ev owners with a robust charging network and premium charging services, but also offer operators real-time monitoring, predictive maintenance, and system optimization.

24/7 support: Remote diagnostics, 4-hour on-site response, 98%+ uptime guarantee

Future-ready: Support for latest charging standards (CCS, MCS) and V2G technology

RD557 PV-Storage-Charging All-in-one Energy Storage System | 5-30kWh

MEC 7-22kW AC EV Charger