Hoymiles MS-A2 Plug-&-Play home battery (2.24 kWh)

The Hoymiles MS-A2 is an AC-coupled home battery that you simply plug between your micro inverter and your power socket. Thanks to the plug & play design, no major modifications to your existing balcony or small PV system are required. Using the S-Miles app (Wi-Fi/Bluetooth), you can set the charging and discharging times, monitor your energy and take advantage of favourable off-peak times.

The most important advantages

• Simple 2-step installation – unplug, insert MS-A2, plug in.

• Wide compatibility – works with common 230 V micro inverters.

• Intelligent energy management – time-controlled charging/discharging and real-time monitoring in the app.

• Emergency power on board – 1,000 W continuous power via integrated Schuko output (peak 1,200 VA for 10 s).

• Safe and durable – LiFePO₄ cells, > 6,000 cycles, IP65 for indoor/outdoor use, natural cooling (no fans).

Core specifications

• Storage capacity: 2.24 kWh (expandable to 4.48 kWh by connecting 2 devices in series)

• Mains power (grid-connected): 800 VA nominal (adjustable up to 1,000 VA via app), 230 V / 50 Hz

• Emergency power (off-grid): 1,000 W continuous, 1,200 VA peak (10 s), Schuko contact

• Max. Input (from inverter): 1,800 VA / 7.83 A

• Nominal charge/discharge capacity of the battery: 1,000 VA

• Dimensions / weight: 455 × 220 × 457 mm / 32 kg

• Protection class: IP65 (standard WCD excluded)

• Operating temperature: -20 °C to +55 °C

Installation and compatibility

• Designed for single-phase 230 V microinverters with anti-islanding solution and CE compliance.

• Place the MS-A2 between the microinverter and the socket; no DC adjustments required.

• Take into account the maximum input power of 1,800 VA. Inverters up to approx. 1,000 W fit well into the specifications.

• Mounting: Floor or wall mounting; ensure sufficient free space all round for natural convection.

Safety & standards

• Battery technology: LiFePO₄; complies with the relevant safety and transport standards.

• Earthing: Class I – earthing via the mains cable supplied.

• Earth fault protection: A type B RCD/RCM is recommended on the supply side. According to the manufacturer’s declaration, a type B is not mandatory if installed correctly thanks to the galvanic HF insulation.

• Always observe the local standards and installation/safety instructions.

Who is the MS-A2 ideal for?

• Balcony PV/rental properties that want to add storage without compromising.

• Users with dynamic tariffs who want to charge intelligently via the app during off-peak periods.

• Users who need emergency power (1,000 W) for important appliances in the event of a grid failure.

In the box

• Hoymiles MS-A2

• MS plug & play cable

• Quick installation guide