Latest Solar Battery Storage Solutions

iStore Solar Battery

If you’re looking for a battery that is scalable and adaptable to meet your evolving energy needs, the iStore Solar Battery is an ideal solution with a modular design that allows you to stack more storage space as and when you need it. The clever iStore design is also highly suitable for those new to solar, who don't know how much capacity they’ll need or plan to boost their panel capacity.

Each 5kWh battery block stacks neatly to form a capacity of up to 60kWh. Instead of replacing your battery as your energy usage increases, simply add another block. Each module weighs 50kg, and the stackable configuration saves valuable space.

The iStore Battery is compatible with both single and three-phase iStore Hybrid inverters, but it also supports Huawei inverters. For iStore, safety is a top priority, with built-in energy optimisers, fire extinguishers and reliable LiFePO4 battery chemistry.

To put it simply, the iStore Solar Battery features:

Usable energy capacity: 5 - 60 kWhModular and scalable design100% depth of discharge for maximum usable energyBuilt-in fire safety and energy optimisers10-year warranty

Fronius Reserva

Introducing the Fronius Reserva – a cutting-edge, DC-coupled high-voltage battery system designed for optimal energy efficiency. Experience minimal losses during both charging and discharging, ensuring you get the most out of your energy storage. 

This battery is the newest in the market (available from September 2025) and completes Fronius's product lineup. 

Here are the key features:

• Eligible for Cheaper Home Batteries Program
• DC Coupling for Enhanced Efficiency
• Backup Power Capability for Peace of Mind
• Smart Energy Management for Seamless Operation
• Usable Energy Capacity: 6.3 kWh to 15.8 kWh

Product Warranty:

Enjoy a 10-year warranty for added confidence in your investment.

Transform your energy experience with the Fronius Reserva today!

Tesla Powerwall

The Tesla Powerwall comes from one of the most recognised names in solar battery technology. In the Powerwall, Tesla merges aesthetics and innovation. The battery combines advanced functionality with a sleek design, offering not just energy storage but also seamless backup during power outages. While aesthetic appearance may seem like an amusing feat to market, solar batteries can’t always be hidden away, so a good-looking one makes it much easier to integrate into your home and outdoor space.

The Powerwall includes a built-in inverter, which simplifies installation and reduces system costs. Its load-shifting capabilities allow users to draw on stored energy during peak tariff times, optimising savings. As part of the Tesla ecosystem, it's designed to integrate with solar, the Tesla App and even EV charging.

Here’s a little summary of the Tesla Powerwall’s key features:

• Usable Energy Capacity: 13.5 kWh 
• Integrated inverter 
• Backup and load shifting 
• Stylish and compact form
• 10-year warranty

BYD Battery Box Premium HVS/HVM

The BYD Battery Box Premium comes in two configurations: HVS and HVM. Each option offers modular expansion and is compatible with a wide range of inverters. The benefit of this dual configuration is that it adapts to your evolving needs, so whether you're looking for basic energy storage or a high-performance system, the BYD solution offers both.

The BYD Battery Box is great for its high peak output, making it suitable for powering high-demand appliances or larger households, and simple expansion that allows you to add more capacity without replacing your system.

Here are the key features of the BYD Battery Box:

• Usable Energy Capacity: 5.1 – 22.1 kWh
• Scalable modular design
• High peak output
• Flexible compatibility with inverters
• 10-year warranty

Sungrow SBR Battery

The Sungrow SBR Battery is another top-tier solar battery that offers a flexible and powerful solution for homeowners looking to gain more control over their energy usage. The Sungrow SBR’s 95% depth of discharge and rechargeability ensures more of your stored energy is available when you need it – so you can avoid bills during the winter months too.

Designed with user experience in mind, the Sungrow SBR Battery includes local support, quick firmware updates and stackable modules for easy scaling. It doesn’t matter if you're solely powering essential loads or your entire home, Sungrow provides reliable performance.

In a nutshell, here is what the Sungrow SBR Battery can offer you:

• Usable Energy Capacity: 9.6 – 25.6 kWh
• One-click firmware updates
• 95% depth of discharge
• 5-year standard, 10-year extended warranty

SolarEdge Energy Bank

SolarEdge Energy Bank delivers industry-leading performance with up to 94.5% round-trip efficiency, resulting in more energy stored and more energy used by your home, with far less going to waste than in other systems. Beyond performance, it is also elegantly designed and blends into its environment without compromising on your style, with a compact design and built-in system intelligence that ensures that every bit of energy is used effectively.

For homes already equipped with SolarEdge systems, the Energy Bank offers perfect integration and performance optimisation – however, it’s also compatible with the Genesis inverter. The Energy Bank supports unlimited cycles over its 10-year warranty, making it a reliable, long-lasting investment.

Some of the key features of SolarEdge’s Energy Bank are:

• Usable Energy Capacity: 9.7 kWh
• Plug-and-play integration with SolarEdge inverters
• Unlimited cycles
• High system efficiency
• 10-year warranty

Growatt ARK

The Growatt ARK battery system is one of the most scalable on the market, offering a massive storage potential of up to 52kWh. Despite its capacity, the system maintains a compact footprint, making it ideal for high-demand homes or even small businesses.

Growatt is a leader in PV technology and offers reliability through a brand renowned in the industry.

Growatt brings its expertise to the battery space with this efficient, space-saving solution. It features easy installation, excellent energy density, and flexible scalability. The brand has always had a keen focus on developing and innovating on renewable technologies, and the ARK system is a result of this mission. The battery has gone through extensive testing in order to reach the excellent reliability, efficiency and capability it offers now.

Some of the key features you can expect from Growatt ARK include:

• Usable Energy Capacity: 6.5 – 52 kWh
• Easy and fast installation
• High energy efficiency
• 10-year warranty

FranklinWH LFP Battery

For those who need total control of their energy, the FranklinWH LFP Battery is designed for you in particular. It’s a cutting-edge energy management system that seamlessly optimises your home’s daily energy use. This means, going beyond just a backup of energy, its smart features actually transform your home’s energy dynamics and give you intuitive energy control at your fingertips.

With an aGate Intelligent Controller, the brains behind the smart system, it manages energy flow, load priorities, generator integration and more. Even with all this intelligent control, it doesn’t lack efficiency – it’s a high-performance, IP67-rated LFP battery with exceptional safety, efficiency and lifespan perfect for energy-conscious families.

The bite-sized version of the FranklinWH LFP Battery’s capacities are:

• Usable Energy Capacity: 13.6 kWh (scalable to 15 kWh)
• AC-coupled system
• App control for energy optimisation
• 12-year warranty
• Whole home and off-grid backup
• Single and three-phase-ready

Enphase IQ Battery 5P

For smaller homes or ones that only partially use solar energy, you might be more keen on something easier to integrate into your space. Enter the Enphase IQ Battery 5P. The IQ Battery is perfect for smaller homes or incremental energy storage setups with a smaller, more mobile size. Despite its size, it has a total usable energy capacity of 5.0 kWh and includes six embedded grid-forming microinverters with a 3.84 kW power rating, including peak output power of 7.68 kVA for 3 seconds and 6.14 kVA for 10 seconds.

The IQ Battery 5P punches above its weight with strong surge performance and a 15-year limited warranty, and is fully AC-coupled, making it compatible with both new and retrofitted solar systems. It cools passively with no moving parts or fans and uses wired communication for fast and consistent connection, making it the ideal solution for people who want a simple yet powerful solution.

Here are the key features of the Enphase IQ Battery:

• Usable Energy Capacity: 5.0 kWh
• Fully integrated AC system
• Six embedded microinverters
• 15-year warranty