Sunsynk published a news post on 12 November 2024 introducing the ALL-In One XLS, described as a 6 kW full hybrid inverter with a built-in battery1. The post gives the headline specification as twin MPPT rated at 8 kW, a 5.3 kWh lithium phosphate battery, parallel capability, AC coupling, DC coupling and time of use1.
The announcement is short and carries no price, no availability date, no warranty terms and no efficiency or backup figures. The post states that "best of all is the price" but does not give a figure, and it directs enquiries to a named contact rather than to a datasheet or product page1. Nothing on UK certification, installer requirements or grid-connection approval appears in the post, and none of those points has been reported elsewhere in the material available.
"This is a new ALL-In One XLS"
The product sits in the category of all-in-one home battery systems, where the inverter and the battery share one enclosure rather than being separate units. Sunsynk already supplies separate hybrid inverters and batteries in the UK, and the company's wider range is set out in the Sunsynk hybrid inverters and batteries pages. The XLS differs from a conventional string inverter in that it can charge a battery directly and can also accept an AC-coupled source.
| Feature | Figure as stated |
|---|---|
| Inverter rating | 6 kW full hybrid |
| Battery | 5.3 kWh lithium phosphate, built in |
| MPPT | Twin, 8 kW |
| Parallel capability | Yes |
| Coupling | AC and DC |
| Time of use | Yes |
Why it matters for households
A single unit that combines inverter and battery reduces the number of separate boxes on a wall and the cabling between them, which is one of the practical differences between an all-in-one and a split system. For a household, the 5.3 kWh battery figure is the number that determines how much of an evening's demand could be covered from stored solar, and it is modest by the standards of the larger standalone batteries on the market. Twin MPPT matters where a roof has panels facing in two directions, since each input can track a separate array.
Parallel capability means more than one unit can be combined, which is the route to a larger storage capacity than a single 5.3 kWh unit provides. AC coupling allows the unit to work alongside an existing solar installation rather than replacing its inverter, and DC coupling allows panels to connect directly. Time of use settings are the function that lets a system charge from the grid in a cheap overnight window and discharge later, which is relevant to households on a time-of-use tariff. The battery management system inside the unit governs how the cells are charged and balanced, though the post gives no detail on this.
What happens next
No launch date, price or UK availability has been reported. The post asks interested parties to contact a named individual for more information1.
Sources1 cited
- News | Sunsynk | Sunsynk, sunsynk.org