4kw battery backup kit

4kW Solar Battery Backup System

A nominal solar battery storage and backup solution designed for domestic properties with a 230V grid connection. This kit can be configured with a compatible hybrid inverter and 5kWh battery storage segments, allowing surplus solar energy to be stored for later use.

Depending on the selected equipment and system configuration, additional battery capacity and backup functionality may be available.

Choose the appropriate system configuration from the available options. If you require a complete solar panel installation kit, including solar panels and roof-fixing equipment, please contact us so we can help match the components to your requirements.

Available Battery Backup Kit Options

A range of hybrid inverter c/w battery storage configurations, to suit nominal sizes:

• The available PV input options, can provide battery capacity and backup functionality depend on the equipment selected. Please check the product variations and specifications before ordering.

Battery Backup During a Power Cut

If you need your solar battery system to supply power during a mains electricity outage, you must select equipment specifically designed and configured for backup operation.

An appropriate backup interface or switching device may be required. Not every hybrid inverter or battery system automatically provides power during a power cut.

Please confirm compatibility and backup requirements before purchasing.

Complete Solar Panel and Battery Kits

We can help you match a battery storage system with a suitable on-roof solar panel kit, including panels, roof-fixing equipment and the required electrical components.

Illustrative solar panel kit sizes include:

Nominal solar array size	Number of full-size panels
2.7kW	6
3.6kW	8
4.5kW	10
5.4kW	12

Actual system capacity depends on the wattage of the selected panels. The inverter, battery, protection equipment, cabling and mounting kit must all be compatible with the proposed system.

To help us recommend suitable equipment, please provide your roof type, available roof area and intended system requirements.

Build Your Own Solar Panel System

We can help you select the equipment required for a self-installation project, subject to system compatibility and applicable electrical safety requirements.

Example nominal solar array sizes include:

• 3.68kW solar array using 8 full-size panels
• 4.50kW solar array using 10 full-size panels
• 5.40kW solar array using 12 full-size panels

Panel quantities are indicative. Actual output depends on the wattage of the panels selected.

Please note: Dragons Breath Solar is a supply-only business. We supply solar equipment and provide product guidance; we do not carry out installations.

Battery Storage Accessories and Technical Information

You may also need compatible battery storage accessories, electrical isolators, switches, cables and other system components.

Please check the manufacturer’s technical documentation for the selected inverter and battery before purchasing additional equipment.

Looking for an Off-Grid Solar System

If you require a standalone 48V off-grid solar system rather than a grid-connected battery backup system, visit our 48V off-grid solar systems section.

You can also browse our range of deep-cycle solar batteries and spare parts.

Need Help Choosing a System

Dragons Breath Solar has over 20 years’ experience supplying renewable energy equipment to DIY and professional customers across the UK.

If you are unsure which inverter, battery capacity or backup configuration is appropriate for your requirements, contact us before ordering. We can help you identify compatible equipment for your project.

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