Zendure SolarFlow: Plug-In Balcony Battery Systems

Zendure's SolarFlow range is a family of plug-in solar battery systems: storage units that take power from solar panels and from a household socket, hold it, and release it into the home rather than exporting it. The range sold into the UK includes the SolarFlow 2400 Pro, the 2400 AC, the 2400 AC+, the 1600 AC+, the 800 Pro 2 and the Hyper 2000, with stackable batteries that take capacity from a 1.92 kWh base unit up to 23.04 kWh across three Hyper 2000 units on the same phase¹.

The appeal is that these are not fixed installations in the usual sense. Zendure describes the 2400 Pro as having a "Plug and Play" design requiring no extensive electrical modifications, and the 800 Pro 2 as a unit whose plug-and-play design makes installation easy for users¹. The 1600 AC+ is described as an integrated, AC-coupled, "plug-and-play" solar battery system that is 100% compatible with existing inverters⁴.

What follows is what the maker publishes about the range: the models, the specifications, the warranty terms, the prices on Zendure's own store, the company's status, and what the systems do and do not do for a household's energy independence.

What the SolarFlow range offers in the UK

Zendure sells into the UK through its own store pages, and the stock position is stated on each product page. The SolarFlow 2400 AC is listed as 100% in stock and shipping in 3 to 5 days, as are the SolarFlow 800 Pro 2, the AB1000 battery and the AB2000 battery⁷. The 2400 Pro's listed variants all carry an availability flag of true¹¹. There is a separate UK storefront at zendure.co.uk¹².

The range splits into two kinds of product. The AC-coupled units, the 2400 AC, 2400 AC+, 1600 AC+ and 800 Pro 2, connect to a household circuit and can work alongside existing solar or on their own. The 2400 Pro and the Hyper 2000 are the higher-capacity units built around larger battery stacks. Zendure states that the AB3000L battery is only compatible with the SolarFlow 2400 Pro and the SolarFlow 2400 AC+, so battery choice is tied to the main unit¹³.

Accessory compatibility is broad. Zendure states that the 2400 Pro is fully compatible with various smart accessories from Shelly and EverHome, and that SolarFlow and AIO can connect with Shelly's smart home products for real-time monitoring and intelligent power management². The 2400 AC+ is listed as compatible with Shelly, EverHome, Homewizard and more, and as 100% compatible with rooftop PV inverters on the market⁵.

Specifications across the range

The published figures differ sharply by model, and the differences matter more than the headline capacity. The 800 Pro 2 carries a 1.92 kWh base unit, a 2640W (4×660W) MPPT controller, a 1000W bidirectional inverter with 1000W input and off-grid output and 800W grid-tied output, and a 48V battery that Zendure states reduces energy loss by 25% compared to a 16V battery system¹. It measures 392.7 by 236.3 by 276mm and weighs approximately 22.6kg excluding accessories and packaging¹.

The 2400 AC has one off-grid socket with a peak power of 3600W for 10 seconds and a stable maximum output of 2400W, and the same 48V architecture⁷. The 2400 AC+ runs from a 2.4 kWh base configuration to a 16.8 kWh maximum using up to five AB3000L batteries at 2.88 kWh each⁵.

The Hyper 2000 is the outlier. Zendure states it has four sets of solar connectors, dual MPPTs, a 2400W solar input and an 1800W MPPT, and that a cluster of up to three units unlocks an MPPT range of 1800W to 5400W capable of harnessing 2400W to 7200W of solar arrays². It measures 350 by 202 by 78mm and weighs approximately 8.5kg excluding accessories². Its chemistry is LiFePO₄, and Zendure states it supports bidirectional charging, so it can be charged from solar panels and from the electricity grid¹⁶.

Panel matching is tightly specified. On the 800 Pro 2, each MPPT input supports a maximum of 660W with an open circuit voltage below 55V, and the panel array operating voltage must sit between 14V and 55V, with Zendure warning that exceeding 55V may cause permanent damage¹. The Hyper 2000 sets a recommended maximum of 350W to 600W per MPPT input and the same 55V ceiling². Both units accept small panels of 100W to 350W connected two or three in parallel on a single connector¹.

Warranty: 10 years on the main units, with conditions

Zendure's product pages state a 10-year warranty on the SolarFlow 2400 AC+, the Hyper 2000 and the AB1000 battery, with the 2400 AC+ and Hyper 2000 pages also claiming an up to 15-year lifespan⁵. The flexible solar panels carry a 12-year component warranty for solar modules³. The official store lists lifetime support, an official warranty and a 30-day money-back guarantee as standard terms¹³.

The formal warranty policy is a separate document with an effective date of 12 December 2023, and its warranty periods table is headed EU and Switzerland¹⁸. That territorial heading is worth noting for a UK buyer: the policy as published does not name the UK in the periods table.

The battery pages add safety and protection claims rather than warranty terms. The AB2000L is described as having a proprietary Intelligent Anti-Thermal-Runaway Technology and an advanced PACK-level balancing algorithm that prioritises charging for low-capacity cells, plus Intelligent AC Over-Discharge Protection that switches to grid power during low sunlight to prevent over-discharge¹⁹. The AB1000 is listed as IP65 waterproof⁶. The 800 Pro 2 keeps battery charge above 5% through intelligent discharge protection, with that lower limit user-settable¹.

What the systems cost

Zendure publishes prices on its own store pages, and they are quoted in minor units rather than pounds, so the figures below are as listed rather than as confirmed sterling amounts. The smallest configuration on the pages reviewed is the SolarFlow 1600 AC+ with a Smart Meter 3CT-S and no extra battery, at 84800 minor units against a compare-at figure of 110800⁸. The SolarFlow 2400 AC with one AB3000X battery at 2,880Wh and a Smart Meter 3CT-S is listed at 108800 against 162800⁷.

From there the bundles climb steeply. The 1600 AC+ with two AB2000L batteries at 3.84 kWh is 155800, with four at 7.68 kWh is 275600, and with five at 9.60 kWh is 335500⁸. The 2400 AC runs from 119900 for two AB3000X batteries at 5,760Wh through 191800, 263700 and 335600 to 407500 for six batteries at 17,280Wh⁷. On the 2400 Pro, a bundle of the unit with five AB3000L batteries and no solar panels is 425400 against a compare-at of 561400, and the same unit with five batteries and two 450W bifacial panels is 443400 against 596400¹¹.

VAT treatment is not stated in these figures. The only VAT position in the material is for Germany, where Zendure states that purchasing the SolarFlow 800 Pro is VAT-exempt under Section 12 of the German VAT Act¹. That does not describe the UK position, and no UK VAT statement is published on the pages reviewed.

Company status and where the products come from

Zendure describes itself as one of the fastest growing energy technology start-ups, located in the technology hubs of Silicon Valley in the United States, the Greater Bay Area in China, and Japan⁹. It states it was the first company to offer semi-solid state batteries in a home energy storage system²⁰. There is no UK company registration, UK manufacturing address or UK administration notice in the material published on its own site.

The company's own figures put its scale in context: Zendure reports that its users generated 13,172 MWh of clean energy in 2024, which it equates to powering 800,000 electric vehicles for a 100-kilometre journey¹⁶. It also states it has been recognised by UNESCO as one of the 80 global sustainability leaders and that it supports the 2026 World Engineering Day under the theme "Your Energy, Our Future"²¹.

On integration, Zendure states that the 2400 Pro connects to over 840 major electricity providers across 32 European markets, including EDF France, and the 800 Pro 2 to 700 or more European energy suppliers across 32 markets¹. The 2400 AC page gives the same 840-plus figure across 32 markets and notes that the customer is responsible for the costs of third-party electricity service platforms⁷. These are European supplier integrations; the pages do not name UK suppliers.

What it means for a household's energy independence

The independence these systems offer is real but bounded, and the boundary is the socket. A SolarFlow unit stores generation from its own panels and releases it into the home, which reduces the volume of electricity drawn from a supplier. Zendure states that integrated storage can lift self-consumption by 60% or more compared to a standard micro-inverter export arrangement, and that the 800 Pro 2's HEMS helps a household save up to 42% on energy in Zendure's own lab tests under a dynamic electricity pricing model¹. Both are maker figures from maker testing, not independent measurement.

The systems also lean on the grid deliberately. The 800 Pro 2 automatically schedules AC charging during off-peak hours through the Zendure app and auto-switches to AC charging from the grid when battery levels are critically low with poor solar generation²³. The Hyper 2000 supports bidirectional charging from panels and from the grid¹⁶. Tariff automation depends on connecting to a dynamic tariff platform, and Zendure states that the Hyper 2000 and SolarFlow Ace 1500 are the only plug-in solar storage systems on the market with multiple dynamic tariff platforms for time-of-use automation²⁴. The Ace 1500 requires a Smart Energy Meter or Smart Plug to discharge intelligently against consumption patterns²⁴.

Backup is partial. The 2400 AC and the 800 Pro 2 both switch to battery power within 15 milliseconds during a grid outage, but the off-grid function must first be enabled in the app, and output is capped: 2400W stable on the 2400 AC and a maximum of 1000W from the off-grid outlet on the 800 Pro 2⁷. Zendure states that, under EU safety regulations, the 800 Pro 2 stops supplying power to the grid during an outage and remains in low-power standby to monitor the grid's status¹. The 2400 Pro page claims that expanding from 2.4 kWh to 16.8 kWh allows a household to sustain its core appliances for one to two days with proper load management¹⁷.

Local control is better than on many comparable systems. Zendure states that the Zen+ OS in the 800 Pro 2 gives reliability even without internet, and that the Hyper 2000 pairs with a Shelly Pro 3EM through local communication without relying on the internet¹. The 800 Pro 2 supports Wi-Fi at 2.4GHz and Bluetooth¹. What remains dependent is everything remote: app scheduling, tariff automation, energy monitoring and firmware updates run through Zendure's platform and a broadband connection. The 2400 Pro offers Zenki, Auto and Expert energy management modes, all of which are app-side¹⁷.

The dependence that does not go away is the grid itself. These are grid-tied systems that export nothing during an outage and import when solar is short. They reduce the volume of electricity bought, not the need for a connection, a supplier and a meter.

Where the range has limits

Several constraints are stated plainly on Zendure's own pages and are worth reading before any purchase. The AB3000L battery works only with the SolarFlow 2400 Pro and the SolarFlow 2400 AC+, so a household that starts on a smaller unit cannot move that battery up the range¹³. The 800 Pro 2 accepts AB1000, AB2000, AB1000S, AB2000S and AB2000X batteries, and AB1000 and AB2000 series can be mixed, but only up to five additional stacked units and a total of 11,520Wh¹.

Voltage limits are hard limits. On both the 800 Pro 2 and the Hyper 2000, panel open circuit voltage must stay below 55V, and Zendure warns that exceeding it may cause permanent damage¹. The Hyper 2000 adds a temperature condition: below 0°C outdoors only the AB2000 is recommended, or the system should be placed indoors above 0°C².

Certification is European and American rather than British. The 800 Pro 2 is listed with VDE-AR-N 4105, NA/EEA-NE7: 2020 and EN 50549, and Zendure states compliance with VDE-AR-N 4105 in Germany and UL 1741 in the United States¹. No UK grid connection standard is named on the pages reviewed. The HEMS supports connecting up to six energy storage main units, and Zendure states that managing multiple HEMS from one account goes live in May 2026¹.

For a household weighing a plug-in system against a fixed installation, the comparison pages on plug-in and balcony battery storage and AC-coupled and DC-coupled systems set out the differences in wiring, capacity and backup. The wider context for sizing, warranty terms and what a battery can realistically deliver sits in the home battery storage guide.