Off-Grid Energy Storage System with RIIO SUN II 2kW 24V Inverter, 4.8/6.2kWh AGM Batteries, and Optional 3.2kW Solar Panels and 3kW Generator
Efficient, Affordable Power for Off-Grid Homes, Workshops and Cabins
Take control of your electricity with this affordable off-grid battery system. It lets you store power from solar panels or a generator and use it when you need it most.
The 4.8/6.2kWh AGM Energy Storage System (4.8/6.2kWh AGM ESS) includes:
- 2x ROLLS R12-200AGM 12V 200Ah Deep Cycle AGM Battery, or
- 2x ROLLS R12-260AGM 12V 260Ah Deep Cycle AGM Battery (other capacities available on request)
- 1x RIIO SUN II Off-Grid 2000W 24V Pure Sine Wave Inverter Charger
- 1x Complete set of Cables, Connectors, Disconnectors, and Accessories
- Optional: Two strings of 3x JA Solar 535W Bifacial Mono PERC Half-Cell MBB LB Traceable Black Frame MC4 solar panels each, and
- Optional: 1x Könner & Söhnen KS 3300i 3000W Petrol Inverter Generator.
This compact system is ideal for off-grid setups in small cabins, remote workshops, and seasonal dwellings. Paired with solar panels and optionally supported by a generator, it delivers reliable, round-the-clock electricity.
The price includes cables, protection disconnectors, and accessories to complete the system. Manuals and a connection diagram are supplied. Mounting not included – if required, choose an option here or contact us for help.
The system must be installed by a licensed electrician or technician following all relevant safety regulations. For homes, see guidance here.
Need installation? We can help. Email us at info@energian.co.uk or call 020 8064 0335.
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ROLLS AGM R12 12V 200Ah Deep Cycle Battery This range of dual purpose sealed maintenance-free 12-volt AGM-R batteries offering outstanding value and performance. The AGM-R line offers a lower self-discharge and an increased acceptance to charge current than conventional flooded wet batteries, allowing faster recharge. Incorporating all of the leading design features associated with Absorbed Glass Mat technology, the AGM-R line provides the perfect solution when looking to replace wet batteries or upgrade existing sealed batteries.
- ROLLS AGM S12 12V 260Ah Deep Cycle Battery The Rolls AGM S12 Series of batteries are the smart choice for demanding industrial deep discharge applications. Rolls Battery designed a Deep Cycle VRLA battery with high reserve capacity, long cycle life and low internal resistance. They are designed and built differently other AGM batteries because they use more lead, heavier plates and other proprietary materials that enable them to deliver more power and capacity over many life cycles. The S12-290AGM batteries are sealed, maintenance free, non-hazardous and nonspillable. You will never need to add water to a Rolls AGM battery or worry about gassing or spilling of acid. Rolls AGM batteries are also leak proof, shock and vibration resistant. Rolls AGM batteries provide the per-formance and life of a true deep cycle battery with all the conve-nience and benefits of being maintenance free & non hazardous.
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RIIO SUN II Off-Grid 2000W 24V Pure Sine Wave Inverter Charger
This innovative unit combines the functions of a 2000W pure sine wave inverter, 80A MPPT solar charge controller, and 40A 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.
The AGS (Automatic Generator Start) function is explicitly available on the RiiO Sun II series allowing the inverter to automatically start and stop a generator based on system conditions such as low battery voltage. The integrated 40A 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 535W Bifacial Mono PERC Half-Cell MBB LB Traceable Black Frame MC4-EVO2A Solar Panels. These high-performance solar panels offer high 22.9% 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 Könner & Söhnen KS 3300i 3000W Petrol Inverter Generator. The Könner & Söhnen KS 3300i is a German premium portable generator, providing a reliable and economical power source. With a maximum output of 3,300W (3.3kW) and a continuous output of 3,000W (3.0kW), 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).
ROLLS AGM R12 12V 200AH DEEP CYCLE BATTERY |
Origin: Canada |
Battery type: High Deep Cycle AGM |
Nominal capacity: 200Ah |
Nominal voltage: 12V |
Design life: 10 years at 20°C |
Lifecycle: 500+ / 850+ cycles (20°C, at 80% / 50% depth of discharge) |
Installation location: Indoor |
Operating temperature: Charge at between 0°C and ~ +40°C; discharge at between 15°C and ~ +50°C |
Terminal: M8 Terminals |
Net weight: 55.7kg |
Size: 530 x 209 x 214mm |
ROLLS AGM S12 12V 260Ah DEEP CYCLE BATTERY |
Origin: Canada |
Battery type: High Deep Cycle AGM |
Nominal capacity: 260Ah |
Nominal voltage: 12V |
Design life: 10 years at 20°C |
Lifecycle: 600+ / 850+ cycles (20°C, at 80% / 50% depth of discharge) |
Installation location: Indoor |
Operating temperature: Charge at between 0°C and ~ +40°C; discharge at between 15°C and ~ +50°C |
Net weight: 73kg |
Size: 522 x 268 x 225mm |
Nominal battery voltage: 24Vdc |
Continuous power output: 2000W/2000VA 220-240VAC 50Hz |
Surge power: 4000VA |
Output waveform: Pure sine wave |
Maximum solar input power: 3600W |
Maximum PV input current: 36A |
Maximum PV open circuit voltage (Voc): 150V |
Solar MPPT operating voltage: 40-145V DC |
Maximum mains/generator AC charging current: 40A |
Maximum battery discharge current acceptance: 139A |
MPPT efficiency: 98% |
Operating temperature: -20°C to 64°C |
Size: 499 x 272 x 144 mm |
Net weight: 14kg |
Rated (peak) power (Wp): 535W in standard 1000w/m2 solar light |
Open circuit voltage (Voc): 44.13V (Vmp =37.03V) |
Short circuit current (Isc): 15.31A (Imp = 14.45A) |
Efficiency: 22.9% |
Cell type: Mono-crystalline silicon |
Connector type: MC4-EVO2 |
Certification: IEC 61215 / IEC 61730 / CE |
Panel size: 2063 X 1134 X 30 mm |
Net weight: 28.8kg |
Model: KS 3300i |
Maximum power: 3300W 3.3kW |
Continuous power: 3000W 3.0kW |
Fuel consumption @ 50% load: 1L/hr |
Phase: Single |
Voltage: 220VAC |
Frequency: 50Hz |
Max/continuous current (Amps): 14.4A |
Power factor (Cosφ): 1 |
Engine model: KS 210i |
Engine type: 4-stroke forced air-cooled |
Engine size: 208cm3 |
Max power output: 5.5hp |
Fuel: Petrol |
Fuel capacity: 7L |
No. of cylinders: 1 |
Features: ECO mode, low oil shutdown |
Noise level @ 7m: 96db(A) |
Net weight: 25.5kg |
Fully assembled dimensions (H x W x L): 450 x 380 x 460mm |
- 2x ROLLS AGM R12 12V 200AH DEEP CYCLE BATTERY - 1 X Pallet, or
- 2x ROLLS AGM S12 12V 260AH DEEP CYCLE BATTERY - 1 X Pallet,
- 1x RIIO SUN II OFF-GRID 2000W 24V PURE SINE WAVE INVERTER CHARGER - 1 X Carton,
- 1x COMPLETE SET OF CABLES, CONNECTORS, DISCONNECTORS, AND ACCESSORIES,
- Optional 6x JA Solar 535W Solar Panels - 1 X Double Pallet,
- Optional 1x Könner & Söhnen KS 3300i Petrol Inverter Generator - 1 X Pallet.
If you have questions, please call us on 020 8064 0335 or email info@energian.co.uk.