Off-Grid Energy Storage System with RIIO SUN II 3kW 24V Inverter, 4.8/7.2kWh LiFePO4 Batteries, and Optional 3.24kW Solar Panels and 4kW Generator

• PYLONTECH RT12100G31 12V 1.2KWH BATTERY: The battery delivers enhanced performance and longevity, offering 6,000+ cycles at 90% depth of discharge (DOD) - 10 times more than the best AGM batteries The battery has a warranty of 5 years , covering all defects caused by manufacturing or material faults.

• RIIO SUN II Off-Grid 3000W 24V Pure Sine Wave Inverter Charger
  This innovative unit combines the functions of a 3000W pure sine wave inverter, an 80A MPPT solar charge controller, and a 70A mains/generator battery charger in a single device. The inverter is compatible with input from 3,600W solar panels, mains power, a generator, or a battery, with the flexibility to use one or multiple input sources simultaneously.

  With hybrid capabilities, advanced communication functions, and highly customisable settings, the inverter delivers 3,000W of continuous AC power and up to 6,000W during peak demand to power appliances like pumps, vacuum cleaners, or power tools. The built-in 80A MPPT solar charge controller maximises solar panel efficiency (up to 98%) and offers comprehensive safety features, including overcharge, overheating, and reverse current protection. Its LCD screen displays real-time performance data for the solar array.

  The integrated 70A smart battery charger ensures safe, efficient, and unattended charging from mains power or a generator, with multiple charging stages and overcharge protection.

• Optional JA Solar 405W Mono PERC Half-Cell MBB All Black MC4 Panels
  These high-performance solar panels offer 20.7% efficiency, excellent durability, and cost-effectiveness with an appealing payback period. With a heavy snow load capacity of 5,400Pa and a wind load of up to 2,400Pa, they are ideal for domestic, agricultural, or garden office installations. The panels feature a sleek black frame and come with a 30-year product warranty.
• Optional Hyundai HY4500SEi 4000W Petrol Inverter Generator
  The Hyundai HY4500SEi is a premium portable generator, providing a reliable and economical power source. With a maximum output of 4,000W (4.0kW) and a continuous output of 3,800W (3.8kW), it combines convenience with exceptional performance. Designed to operate quietly, this generator is well-suited for a wide range of applications.

FREE 4-5 WORKING DAYS' DELIVERY within the UK (including the Highlands, islands and Northern Ireland).

PYLONTECH RT12100G31 12V 1.2KWH BATTERY

* If the temperature range is -40 ℃ to ~ -20℃, it will only be possible to enable the heater to warm up the module, the battery will not charge or discharge at such low temperatures.

RIIO SUN II OFF-GRID 3000W 24V PURE SINE WAVE INVERTER CHARGER WITH BUILT-IN 80A MPPT SOLAR CONTROLLER AND 70A MAINS/GENERATOR BATTERY CHARGER

• 4x or 6x Pylontech RT12100G31 1.2kWh Lithium-IonLiFePO4 (LFP) Solar Batteries - 1 X Pallet, 
• 1x RIIO SUN II Off-Grid Hybrid 3000W 24V Pure Sine Wave Inverter - 1 X Carton,
• Set ofd cables, disconnectors, and accessories,
• Optional 8x JA SOLAR 405W MONO PERC HALF-CELL MBB ALL BLACK MC4 PANELS - 1 X Double Pallet,
• Optional 1x Hyundai HY4500SEi 4000W Petrol Inverter Generator and
• Optional 1x MorningStar RD-1 Relay Driver with auto GenStart function.

BATTERY BANK

Warning:

Never mix batteries within the battery bank. All batteries must be of the same type, size, and general age. Using an old, mismatched, or faulty battery can cause significant issues.

Note: New batteries behave like older ones initially and require a few cycles to function optimally.

1. What is the battery bank capacity of the 4.8/7.2kWh LFP ESS?

The 4.8/7.2kWh LFP ESS consists of 4 or 6 well-known PYLONTECH RT12100G31 12V 1.2kWh Lithium-Ferro-Phosphate (LFP) batteries, offering a total capacity of 4,800Wh or 7,200Wh when connected in parallel. Its patented structural design ensures maximum utilisation of active material and internal battery space, providing excellent performance for high-current discharge.

2. What is the cycle life of the battery?

PYLONTECH RT12100G31 batteries are designed for over 6,000 cycles at 90% depth of discharge (DoD).

3. How can I prolong the lifespan of the battery?

To ensure longevity:

• Charge the battery at least once every six months, ensuring the state of charge (SoC) is above 90%.
• Annually, inspect power connectors, grounding points, power cables, and screws for signs of looseness, damage, or corrosion. Check the installation environment for dust, water, or insect intrusion to confirm it is suitable for the IP20-rated system.
• If stored for extended periods, charge the battery every six months, keeping the SoC above 90%.

4. What are the battery care and storage instructions?

• Recharge batteries every six months when stored, ensuring the SoC remains above 90%.
• Recharge the battery within 12 hours after a full discharge.
• Avoid installing the battery in outdoor environments or conditions outside the operational temperature and humidity ranges specified in the user manual.

5. When should I charge my PYLONTECH LiFePO4 battery?

LiFePO4 batteries do not require charging after each use if not fully discharged. They can be charged after each use or when discharged to up to 90% DoD (10% SoC). They are not damaged by being left in a partial state of charge (PSOC).

6. What to do if the battery bank loses power too quickly?

Verify if high-power electrical appliances are connected. The off-grid energy storage system's capacity is 4.8kWh or 7.2kWh. For example, when discharging from 100% to 10%:

• A connected appliance with ~1,500W power will drain a 4.8kWh battery in approximately 3 hours and a 7.2kWh battery in about 4.3 hours.

DC to AC Inverter

1. What does a power inverter do?

A power inverter converts battery power into mains power by transforming 48V direct current (DC) into 230V alternating current (AC). This 230V AC power, similar to utility-supplied power, is suitable for household appliances such as lights, televisions, and refrigerators.

The 4.8/7.2kWh LFP ESS uses a RIIO SUN II 3000W 24V Off-Grid Pure Sine Wave Inverter to create a home-based 230V "grid".

2. What type of inverter is used in the 4.8/7.2kWh LFP ESS?

The system features a 3000W pure sine wave inverter, which provides an output up to 3000W following a smooth sine wave. This closely resembles utility-supplied power and is more efficient and compatible with a wide range of appliances compared to modified sine wave inverters.

3. What are the key functions of the RIIO SUN II 3000W 24V off-grid hybrid inverter?

• 3000W Pure Sine Wave Inverter: Converts DC into 230V AC, powering appliances such as TVs, laptops, refrigerators, and lights. It supports continuous power up to 3000VA and peak power of 6000VA for appliances with high starting currents (e.g., pumps, power tools).
• Built-in 80A MPPT Solar Charge Controller: Regulates solar panel input to the batteries, with safety features like overcharge and overheating protection. Operates at up to 98% efficiency for optimal solar output.
• Enhanced 70A Smart Battery Charger: Allows safe and efficient unattended battery charging from mains or a generator, with multiple protection and charging stages.
• UPS Zero Transfer Time: Ensures instant (0ms) transfer from mains to battery during power interruptions, ideal for critical IT loads.

4. What additional intelligent functions does the RIIO SUN II 3000W inverter offer?

Key features include:

• Automatic generator start (AGS): Activates generators only when required to save energy.
• Power assist and control: Supplements a small generator’s capacity and optimises fuel consumption.
• User-friendly monitoring: Performance monitoring via the Nova Web or TBB-KIN2 Kinergy-II Wi-Fi module for remote control.
• Reliable operation: ECO mode enhances backup time with minimal self-consumption.
• High efficiency: Maximum inverter efficiency of 91% and MPPT efficiency of 98%.
• Ease of use: Simple installation and automatic restart upon power restoration.

5. What can the RIIO SUN II 3000W 24V off-grid hybrid inverter be used for?

This inverter is suitable for powering standard household appliances as detailed in the table below, providing reliable energy for a variety of needs.

Appliances marked with an asterisk (*) are likely to have a starting power consumption several times higher than their normal operating power. This is typically due to the presence of electric motors. For example, an electric lawnmower with a normal operating power of 1,000W may have a starting power of over 4,000W. An inverter with a continuous power of 3,000W is suitable in such cases because it can handle a peak power of up to 6,000W.*

**Appliances without electric motors may also have variable power consumption with occasional spikes. These spikes necessitate a larger inverter than would typically be required for devices with similar nominal power ratings.

Please note: This table is for general guidance only. The actual power consumption and starting power requirements of your appliances may vary significantly. Always check the specifications of your devices to confirm their continuous and starting power requirements.

If multiple devices are connected to the inverter, the total power consumption should be the sum of all connected appliances. This total will determine the inverter capacity required.

6. Why use a 24V battery bank and a 24V DC to 230V AC inverter?

This configuration offers several key advantages:

• The inverter’s input current is two to four times smaller at 24V compared to 12V, improving system safety and reliability.
• The cables connecting the battery to the inverter can be thinner than those required for a 12V system, reducing material and installation costs.

7. What protection and safety features does the RIIO SUN II 3000W 24V inverter have?

The inverter includes critical safety protections and warning indicators, such as:

• Overload protection: 3 seconds at 150% load; 10 seconds at 110–150% load.
• Overcharge protection: Triggered at 66V DC.
• Thermal shutdown: Engages at 60°C ±5°C.

Indicators for:

• Battery overcharge.
• Low battery.
• Overload.
• Solar charge cessation due to low battery or high PV voltage.

8. What AC inputs/outputs does the RIIO SUN II 3000W 24V inverter have?

The inverter includes:

• 1 x 230V AC Input
• 1 x 230V AC Output

9. Does the RIIO SUN II 3000W 24V inverter support wireless control?

Yes, the inverter includes Bluetooth connectivity, allowing control via a smartphone.

10. What to do if the RIIO SUN II 3000W 24V inverter cannot power electrical appliances?

• Check whether the inverter’s 3000W output power is sufficient for your appliance’s requirements.
• If a warning indicator appears, refer to the User Manual for specific troubleshooting steps.

11. What to do if appliance usage time is too short?

Due to variations in appliance power consumption, the inverter’s discharge efficiency is slightly below 100% (typically around 98%). This means actual usage times may be shorter than theoretical calculations. To determine usage times:

• Base calculations on the continuous power rating of your appliances.
• For further assistance, contact Energian Customer Service with your appliance specifications for detailed analysis.

Solar and AC Battery Charging

1. What are the specifications of the RIIO SUN II 3000W 24V inverter’s built-in solar charger?

• Maximum solar input power: 3600W.
• Maximum open circuit solar input voltage: 150V.
• Solar MPPT operating voltage: 40–145V DC.
• Maximum solar charging current: 36A.

2. What are the specifications of the RIIO SUN II 3000W 24V inverter’s built-in AC charger?

• Maximum mains AC charging current: 70A.
• Maximum solar/AC charger efficiency: 98%.

Generator Charging

1. What are the specifications of the RIIO SUN II 3000W 24V inverter’s built-in generator charger?

• Rated input voltage: 220–240V AC, 50Hz.
• Maximum mains AC charging current: 70A.
• Maximum generator charger efficiency: 98%.

2. What generator can be used to charge the battery?

• Fuel type: Petrol/Diesel/LPG.
• Minimum output power: Greater than 3kW.