Hoymiles HiBattery 4020 Series Installation Guide

Step 1. Position the Battery

• Place the HiBattery 4020 X on a solid, level surface.
• Ensure sufficient ventilation around all sides.
• If expansion batteries are used, stack them according to installation instructions before wiring.

Step 2. Connect Expansion Batteries (Optional)

• Power must remain OFF.
• Remove connector covers.
• Carefully stack each battery module.
• Secure the battery connection according to the locking mechanism.

The system supports expansion from 4.02 kWh up to 16.08 kWh.

Step 3. Connect PV Modules

Connect the solar panels directly to the four integrated MPPT inputs.

• Verify PV voltage is within specification.
• Connect MC4 positive and negative connectors securely.
• Confirm correct polarity before energizing.

Step 4. Connect AC Output

Connect the AC output cable to the household electrical system according to local electrical codes.

• Ground connection is completed.
• Circuit breaker is installed.
• AC wiring is securely fastened.

Step 5. Install Energy Meter (Recommended)

Install a compatible smart meter for:

• Automatic charging
• Self-consumption optimization
• Export limitation
• Backup power management

Related product: Hoymiles Smart Meter, 3 Phases

Step 6. Power On

1. Turn on the battery.
2. Switch on the AC breaker.
3. Enable PV input.
4. Verify LED indicators show normal operation.

Step 7. Configure in S-Miles Home

• Connect via Bluetooth
• Configure Wi-Fi
• Add the battery
• Pair the smart meter
• Check firmware updates
• Confirm normal charging and discharging

Step 1: Position the Battery

Install the battery on a flat, stable surface close to the desired AC connection point.

Choose a location that is:

• Dry
• Well ventilated
• Protected from direct sunlight
• Easily accessible for maintenance

Step 2: Stack the Expansion Batteries

If you are using expansion batteries, make sure the system is completely powered off and not connected to any cables.

Carefully stack the HiBattery 4020 AC main unit and expansion batteries according to the installation instructions.

Step 3: Connect the On-Grid Cable

Connect one end of the MS Plug-and-Play Cable to the On-Grid Port of the HiBattery 4020 AC. Make sure the connector is fully inserted and securely locked.

For a standard socket installation, connect the other end of the cable to a compatible household socket.

If connecting directly to a distribution box, the installation must be performed by a qualified electrician in accordance with local electrical regulations.

Step 4: Connect the Off-Grid Output (Optional)

If backup power is required, connect the appropriate loads to the Off-Grid Port according to the installation instructions.

Make sure the connected loads do not exceed the system's rated output power.

Step 5: Install the Smart Meter (Recommended)

Pairing the HiBattery with a smart meter enables intelligent energy management, including:

• Real-time monitoring
• Smart charging schedules
• Export control
• Maximum self-consumption

Related product: Hoymiles Smart Meter, 3 Phases

Step 6: Power On

After verifying all connections:

1. Turn on the battery.
2. Energize the AC circuit.
3. Wait for the system to initialize.
4. Confirm that the status LEDs indicate normal operation.

Step 7: Complete Setup in the S-Miles Home App

Using the S-Miles Home App:

• Connect the battery via Bluetooth.
• Configure the Wi-Fi connection.
• Add the battery to your account.
• Pair the smart meter.
• Select your preferred energy management mode.
• Check that charging and discharging operate normally.