Hoymiles MS-A2 Plug-&-Play Home Battery (2.24 kWh)

The Hoymiles MS-A2 is an AC-coupled home battery that you just plug in between your micro-inverter and wall socket. Thanks to its plug-&-play design, you do not need any major modifications to your existing balcony or small PV installation. Via the S-Miles app (Wi-Fi/Bluetooth), you set charge and discharge times, monitor your energy and take advantage of favourable off-peak hours.

Key benefits

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

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

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

• Emergency power on board – 1,000 W continuous 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 units in series)

• Mains output (on-grid): 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 battery: 1,000 VA

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

• Protection rating: IP65 (standard WCD excluded)

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

Installation & compatibility

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

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

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

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

Safety & standards

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

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

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

• Always follow local standards and installation/safety instructions.

For whom is the MS-A2 ideal?

• Balcony PV / rental properties that want to add storage without any chopping and breaking.

• Users with dynamic tariffs who want smart charging on off-peak hours via the app.

• Those who want emergency power (1,000 W) for essential appliances in case of grid failure.

In the box

• Hoymiles MS-A2

• MS plug & play cable

• Quick installation guide