Jackery SolarVault 3 Pro
A 2.52 kWh LiFePO4 solar battery with four solar inputs and 1,200 W backup, expandable to 15.12 kWh, with a 10-year warranty.
- Best for solar plus storage
- Solar battery
- 2.52 kWh
- 10-year warranty
- Made by Jackery.
- Capacity: 2,520 Wh with LiFePO4 cells rated for 6,000 cycles (90% depth of discharge, 70% or more health).
- Four solar inputs of up to 1,000 W each, and 800 W default grid-connected output (1,200 W by professional installation where permitted).
- Backup output up to 1,200 W, switching over in under 20 ms.
- Expandable to 15.12 kWh with up to five BP2500 batteries. IP65, 10-year warranty.
Not tested by us
We have not tested the Jackery SolarVault 3 Pro. The figures on this page come from the sources listed at the end of the page, checked on 11 November 2026, and we do not show prices. "Best for" is based on what the maker says the product is designed for, not on our own tests.
Key figures
2,520 Wh
Capacity (expandable to 15.12 kWh)
4 x 1,000 W
Solar inputs (MPPT)
10 years
Warranty
Specifications
Last checked on 11 November 2026. The grey text under each name explains what the value means. To see it next to other products, compare it in our comparison tool.
| Specification | Value |
|---|---|
| Storage | |
| CapacityHow much energy the battery stores. Bigger means longer runtime or more of your own solar power used later. | 2,520 Wh |
| Battery chemistryLFP (lithium iron phosphate) cells are known for long life and stable behaviour with heat. | LiFePO4 (LFP) |
| Cycle lifeHow many full charge and discharge cycles the cells are rated for before they hold less than the stated share of their original capacity. | 6,000 cycles, 90% depth of discharge, 70% or more state of health |
| ExpansionExtra battery units that add storage to the same system. | Up to five BP2500 batteries, for up to 15.12 kWh in total |
| Power | |
| AC output, grid-connectedThe lower output allowed when it feeds power into the home's circuits or the grid. | 800 W (800 VA, 3.5 A) by default; 1,200 W (1,200 VA, 5.2 A) with professional installation where local rules permit |
| Backup outputA separate socket that keeps selected devices running when the grid is down. | Up to 1,200 W off-grid, switchover in under 20 ms; bypass of up to 2,300 W when the grid is available |
| AC charging inputHow fast it charges from a wall socket or the grid. | Up to 2,300 W maximum AC input in the specification table. The feature text names 800 W / 1,200 W AC charging. |
| Efficiency and standby useLosses when charging, discharging and doing nothing. | Not stated |
| Solar | |
| Solar inputsThe number of panel strings it can track separately (MPPT) and the total DC power. | 4 independent MPPT inputs, up to 1,000 W each; 16 to 60 V, 28 A per input. The page also gives 4,000 W and 5,200 W as the combined solar input. |
| Grid connectionThe supply type it is built for. Check it matches your home's supply. | 230 V, 50 Hz single phase; AC-coupled operation with compatible solar and microinverter systems; Jackery says the UK version is built around anti-islanding protection |
| Connection and housing | |
| Dimensions (L × W × H)Check the space before you buy, including room around it for airflow and cables. | 485 × 235 × 282 mm, as listed (the page does not say which number is which axis) |
| WeightMatters for lifting, wall mounting and moving it. | 25.5 ± 0.5 kg |
| Protection ratingIP ratings show protection from dust and water. IP55 and IP65 are rated for outdoor-style exposure; check the installation guidance. | IP65 |
| Operating temperatureThe range it is rated to work in. Cold and heat can reduce performance. | -20 to 55 °C, with automatic battery heating in freezing conditions |
| Noise levelFan noise while working. | Not stated as a figure; Jackery calls it quiet |
| ConnectivityHow you monitor and control it, usually through an app. | Wi-Fi, Bluetooth and Ethernet; Jackery app with AI Smart Mode and over-the-air updates |
| Warranty | |
| WarrantyThe period the maker covers. Read the terms: conditions and capacity guarantees differ. | 10 years |
Compatible with
What Jackery says this product works with. Anything not listed here is not confirmed.
- Extra batteries
- BP2500 expansion batteries, up to five.
- Solar panels
- Works with panels of other brands; Jackery sells it in a bundle with 2 x 500 W bifacial rigid panels. Each solar input accepts 16 to 60 V.
- Existing solar
- AC coupling with a wide range of compatible rooftop solar and microinverter systems.
- Tariffs and smart meter
- Works with compatible time-of-use tariffs, including eligible Octopus Energy plans. A Smart Meter 1P is listed as a free gift with the base.
Rules where you live
Rules for plug-in batteries differ by country. Jackery's UK page says the SolarVault 3 Pro must be hardwired to your consumer unit by a qualified electrician under current UK requirements, and that the supplied cable with a plug may be used only if and when UK rules permit it. In Great Britain, plug-in solar kits of up to 800 VA have been legal since 27 August 2026, but the rules exclude plug-in batteries.
Check the rules, incentives and tariffs for your own country in our country guides.
Strengths and things to check
Strengths
- Four independent solar inputs of up to 1,000 W each
- Expandable from 2.52 kWh to 15.12 kWh
- 1,200 W backup output with switchover in under 20 ms
- IP65 and -20 to 55 °C operating range
- 10-year warranty
Worth checking before you buy
- Jackery's UK page says it must be hardwired by a qualified electrician, so it is not plug-in in Great Britain today
- 25.5 kg is heavy to move around
- The page gives different combined solar input figures (4,000 W and 5,200 W) and does not state efficiency or a noise figure
- Extra batteries cost extra
Change log
We record changes to this page here, so you can see when figures such as the warranty were last updated.
- 11 November 2026
- Page published. Jackery's UK page listed the product as a new arrival and available to order. Warranty at publication: 10 years. Jackery's UK page says it must be hardwired by a qualified electrician under current UK requirements.
Where this information comes from
We have not tested the SolarVault 3 Pro. Every figure above comes from Jackery's UK product page, including its specification table, last checked on 11 November 2026. The page also sells the SolarVault 3 Pro Max and Pro Max AC, which are different models; the figures here are for the SolarVault 3 Pro. A value the page does not state is shown as not stated. Savings figures on Jackery's page are the maker's own modelled estimates and we do not repeat them.
We do not show prices, because they change often and differ between sellers.
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Common questions about Jackery SolarVault 3 Pro
Can I use the Jackery SolarVault 3 Pro as a plug-in battery in my country?
It depends on local rules. Jackery's UK page says it must be hardwired by a qualified electrician under current UK requirements. In Great Britain, plug-in solar kits up to 800 VA are legal since 27 August 2026 but the rules exclude plug-in batteries. Check our country guides.
How far can the SolarVault 3 Pro be expanded?
Jackery says up to five BP2500 batteries, for up to 15.12 kWh in total.
What is the difference between the SolarVault 3 Pro, Pro Max and Pro Max AC?
Jackery's comparison table gives the Pro 1,200 W bidirectional AC with 4,000 W of solar input, the Pro Max 2,500 W with 4,000 W of solar input, and the Pro Max AC 2,500 W with 2,500 W of AC input and no solar inputs.
Related guides
How much could a battery save you?
Our calculator uses your own usage and tariff to estimate what a home battery could save, with conservative assumptions.