Jackery SolarVault 3 Pro: A New Kid on the Block for UK Solar Storage?
- jontracey4
- 21 hours ago
- 2 min read
The home battery market is getting increasingly interesting. EcoFlow, Anker SOLIX and others have been pushing hard into smaller, modular solar and battery systems — and now Jackery has entered the ring with the SolarVault 3 Pro.
I've been living with the system for around six weeks, so rather than simply looking at a specification sheet, I've been able to see how it actually performs with real solar panels, real household loads and typical British weather.
And there are some genuinely interesting ideas here.
What is the Jackery SolarVault 3 Pro?
The SolarVault 3 Pro combines a 2.52kWh battery with four independent MPPT solar inputs, each capable of accepting up to 1,000W of solar.
That gives you considerably more flexibility than you might expect from a relatively compact system. Different solar arrays can face different directions, use different panels or even be installed in different locations without all having to operate as one array.
The battery capacity can also be expanded by adding additional battery modules, making this potentially much more than a small balcony-solar setup.
In the video I take you through the hardware, connections, battery expansion and installation before looking at what happened when I actually started using it.
Is it really plug-in solar?
There's an important distinction for UK buyers.
Jackery describes the SolarVault 3 Pro as “plug-in ready”, rather than simply plug-in solar.
The UK system is intended to be connected appropriately to your home's electrical system by a qualified electrician — for example through a consumer unit or fused spur. That's different from simply taking the system out of the box and plugging it into an ordinary UK socket.
I explain this distinction in detail in the video because I think it's important that people understand exactly what they're buying.
Six weeks later…
Installation is one thing. What I'm much more interested in is what happens afterwards.
I've now had the SolarVault running for around six weeks and so far it has largely just got on with the job.
I'm collecting its solar generation, battery behaviour and financial performance so that we can follow the system over the longer term rather than judging it from a few days of testing.
I'm also particularly pleased to see MQTT support. That opens up some interesting possibilities for Home Assistant users and has allowed me to bring SolarVault data into my own monitoring systems.
if you want to follow along and see how the system is preforming I publish data every single day on its preformance to my website
The new kid on the block?
Jackery is entering an increasingly competitive part of the home-energy market, and that's good news for consumers.
But I'm not declaring a winner after six weeks.
The SolarVault 3 Pro is staying installed, and I'll continue testing it as we move from summer into autumn and, more importantly, through a British winter.
Want to see the installation, specifications, app, real-world performance and my results so far?
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