The Enphase IQ Battery 5P is the next generation of home energy storage—combining advanced technology, industry-leading safety, and seamless integration with solar and Enphase systems. Designed for homeowners seeking greater energy independence, the Enphase Battery delivers reliable backup power, optimises self-consumption, and supports smart energy management. With its one of a kind integrated microinverter system, and robust 15-year warranty, this compact 5 kWh solution is considered one of the best batteries on the UK market for performance and longevity.
Read on to discover more about the Enphase IQ range, including the enphase battery price and its main features!
What to expect from the Enphase IQ Battery 5P
The Enphase IQ Battery 5P is a cutting-edge, all-in-one AC-coupled energy storage system with a usable capacity of 5 kWh. It delivers a continuous power output of 3.2 kVA and a peak power output of 6.4 kVA for 3 seconds, or 5.12 kVA for 10, making it ideal for both daily energy independence as well as backup scenarios. The system is built with six integrated IQ8D-BAT microinverters, enabling rapid and reliable bidirectional energy conversion between Direct and Alternating Current. It operates with a round-trip efficiency of 90%, features passive cooling, and is rated for indoor and outdoor installations, with an IP55 environmental rating. Backed by an industry-leading 15-year warranty the Enphase IQ Battery 5P offers advanced safety, reliability, and performance.
Enphase IQ Battery 5P Specifications
| Enphase IQ Battery 5P | |
|---|---|
| Battery Capacity (kWh) | 5.0kWh |
| Continuous Power Output | 3.2kVA |
| AC Round-Trip Efficiency | 90% |
| DC Round-Trip Efficiency | 96% |
| Inverter | 6 Integrated IQ8D-BAT Microinverters |
| Back Up Power | 7.68 kVA (3 seconds), 6.14 kVA (10 seconds) 1.0 leading, 1.0 lagging |
| Weather Resistance | -20 to 55 |
| Mounting | Wall or Floor Mounted |
| Size | 980 × 550 × 188mm |
| Weight | 78.9 kg |
| Scalability | up to 4 batteries together for 20kWh of storage. |
| Cell Technology | Lithium iron phosphate (LFP) |
| IP Rating | IP55 (battery enclosure) / IP67 (microinverter enclosure) |
| Installation | Wall mount (included) or pedestal mount (sold separately) |
| Warranty | >60% capacity, up to 15 years or 6000 cycles |
What are the main benefits of installing an Enphase battery?
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More Power
As an AC-coupled battery solution, when you increase the number of batteries you not only increase the usable capacity but Power output also. For example if you were to install 3 Enphase batteries, you will be able to benefit for 9.6kVA of continuous power (3.2 x 3). The IQ Battery 5P is incredibly powerful by design. This means that even during a grid outage, this home battery can be used to start and power more energy demanding appliances like air conditioning units and pool pumps. With a peak power output of 6.4 kVA for 3 seconds, the Enphase home battery has no problem it supporting start up for high usage appliances.
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Modular Design
Enphase’s AC-coupled system offers flexible, modular battery capacity—so you can start small, scale up, or expand gradually over time. Thanks to IQ8 microinverters on the solar panels, there are no restrictions when it comes to solar-to-battery ratio sizing, meaning you won’t need to upgrade your inverter just to add more panels or power. Each 5kWh battery is intentionally designed to suit a wide range of homeowners: it’s easier to handle, doesn’t require any specialised equipment for installation, and still delivers high power output. Plus, you can connect up to 12 units on a single system, making it a scalable and future-ready solution.
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Enhanced Safety Features
Enphase IQ Batteries are engineered with safety at their core. Built with Lithium Iron Phosphate (LFP) chemistry, Enphase IQ Batteries utilise one of the safest lithium-ion technologies available today, which is now widely recognised as the industry standard for residential solar batteries.
Furthermore, Enphase IQ Batteries are the first microinverter-based storage system to meet the rigorous standards of UL 9540A, a unit-level test designed to assess thermal runaway and fire propagation protection in residential wall-mounted installations.
Each battery is powered by IQ Microinverters, operating on a distributed architecture that enhances system resilience and safety. Unlike traditional high-voltage DC battery systems, Enphase storage systems are AC-coupled battery solutions, which are inherently safer. Since alternating current doesn’t sustain an arc when a circuit is broken, the risk of arc-fault fires is significantly reduced. Additionally, the absence of exposed DC wiring at ground level further improves installation safety. With Enphase, you’re not just storing power, you’re investing in a safer, smarter, and more secure energy future for your home.
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Industry-Leading Warranty
Whilst the majority on solar batteries on the UK market offer a 10 year warranty, the Enphase home battery comes with an industry leading 15 Year product warranty, >60% capacity, or 6000 cycles – whichever comes first. As the third-generation of Enphase IQ Batteries, you can be assured this 15 years warranty is a reflection of Enphase’s confidence in their energy storage solution.
Frequently Asked Questions About the Enphase Battery
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How many Enphase batteries can I get installed?
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What is the Warranty Period for Enphase Battery?
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Is the IQ ENphase Battery range compatible with other string inverters?
As an AC-couple battery solution, the Enphase battery is compatible with third-party inverters in Europe, as well as the Enphase microinverter range. In order to install an Enphase Battery alongside a 3rd party inverter an additional CT will just need to be placed on the string inverter circuit to enable production to be monitored.
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Can the Enphase Battery Provide backup power ?
During a grid outage, an Enphase Energy System with IQ Batteries and an IQ System Controller 3 can help keep your home powered. If your solar PV system includes Enphase IQ8 Series Microinverters, you’ll still be able to generate and use solar energy when the sun is shining—even without a grid connection.
Enphase’s Storm Guard feature adds an extra layer of preparedness by automatically prioritising battery charging when severe weather or a potential outage is detected in your area.
In the event of an outage, it’s important to conserve battery power to extend its availability. This means minimising the use of high-powered appliances and focusing on essentials only. The Enphase IQ Load Controller makes this easy by intelligently managing the power flow to your appliances. This can be controlled through the Enphase App, so you can maximise your battery’s lifespan with minimal effort.
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Can the Enphase Battery work with a Generator ?
Compatible with most leading AC home standby generators, the Enphase IQ Battery seemlessly functions alongside a generator without the need for an automatic transfer switch. This eliminates the power glitches typically experienced when switching to generator power, ensuring a smooth and reliable transition.
With Enphase’s intelligent load control, you can activate “Generator Mode” while off-grid, allowing the system to work in harmony with your generator. In this mode, your essential loads remained powered when the grid is available or, and in off-grid scenarios, only when the generator is running.
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Can I add the Enphase Home Battery to my existing solar system?
Yes, the Enphase home battery can be retrofitted to the IQ Microinverter series or alternatively a 3rd party string inverter.
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How much does an Enphase Battery Cost?
Retrofitting the Enphase IQ Battery 5P to an existing solar panel system typically costs around £5,000. However, pricing can vary depending on your location, chosen installer, and whether any additional electrical upgrades are needed.
For the most accurate quote on an Enphase battery installation in the UK, get in touch with our team via our contact form or give us a call on 01322 479369. We’ll be happy to help!
Get a Quote for a Enphase Battery Installation Today
As one of the UK’s leading Enphase battery installers, the expert team at Deege Solar is here to answer all your questions and guide you through everything related to the Enphase Battery. As Certified Enphase Installers, you’re in trusted hands. Enquire today for your free quote, and to ask us any questions.
