Hoymiles HiBattery 4020 S expansion battery in angled front view
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HOYMILES · EXTENSION BATTERY

Hoymiles HiBattery 4020 S HB-4020-S 4,02 kWh Extension Battery

SKU: 11047

Delivery time: 4–7 working days

The stated delivery time is an estimate based on available stock. Shipping is via standard delivery. Weekends and holidays may delay delivery.

capacity
4.020 Wh
314 Ah LiFePO4
Charging/discharging power
2.000 W
Nominal and maximum value
Protection class
IP66K
With automatic self-heating
cycle life
≥ 8.000 cycles
at 70% SOH
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€699,00 €768,90 You save €69,909 % OFF
0% VAT in Germany if certain conditions are met · Shipping costs will be calculated · Details

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Enjoy maximum security: Up to 30-year warranty on high-performance modules, 10–12-year product warranty on inverters, and 10 years on battery storage systems (with a 15-year lifespan). For other products, please refer to the specific details in the respective product documentation.

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Product description

Hoymiles HiBattery 4020 S Extension Battery The HB-4020-S adds 4,02 kWh of LiFePO4 storage to compatible HiBattery 4020 systems. With 2.000 W charging and discharging power, IP66 protection, automatic self-heating, and at least 8.000 cycles at 70% state of health (SOH), this stackable module expands the energy reserve of the HiBattery 4020 X or HiBattery 4020 AC – without requiring a standalone inverter, PV system, or app.

Delivery

1× Hoymiles HiBattery 4020 S Extension Battery (HB-4020-S)
1× User Manual
2× handle
2× bracket
2× M6 expansion bolt
2× M5 screw
4× M4 screw
Not included: HiBattery 4020 X/AC main unit, Hoymiles Smart Meter, MS Plug-and-Play cable and PV components

Produktvorteile

-- 4,02 kWh additional storage capacity

The HB-4020-S adds 4020 Wh of nominal energy and 314 Ah to a compatible HiBattery-4.020 system.

-- 2.000 W charging and discharging power

Within a compatible system, the expansion module supports a nominal and maximum power output of 2.000 W each.

-- At least 8.000 cycles

Hoymiles states a cycle life of at least 8.000 cycles to maintain 70% state of health.

-- IP66 and automatic self-heating

The protected housing and the heating film, which is automatically activated at temperatures below 0 °C, support operation down to -20 °C.

-- Modularly expandable storage system

Up to three HB-4020-S units can be stacked per compatible main unit; together, a system capacity of up to 16,08 kWh is possible when using the Hoymiles Smart Meter.

Compatibility

The HB-4020-S is exclusively designed as an extension battery for Hoymiles HiBattery 4020 X and Hoymiles HiBattery 4020 AC It is designed for use with other devices. It cannot be operated independently. Up to three HB-4020-S units can be added to each compatible main unit; when using the Hoymiles Smart Meter, a system capacity of up to 16,08 kWh is possible together with the main unit battery.

Technical information

HB-4020-S · LiFePO4 · 4.020 Wh · 314 Ah · 12,8 V · 2.000 W charging and discharging · ≥ 8.000 cycles at 70% SOH · IP66 · 520 × 275 × 199 mm · 35 kg.

Safety and operating conditions

The HB-4020-S operates with natural convection cooling. The integrated heating film switches on automatically at temperatures below 0 °C. Hoymiles specifies an operating temperature of -20 to 55 °C, 5–100% humidity, and an operating altitude of up to 4.000 m.

Matching accessories and related products

Why Mini Power

At Mini Power you will receive the Hoymiles HiBattery 4020 S Extension Battery With verifiably verified manufacturer data, clearly stated compatibility, and a fully aligned scope of delivery. We consistently separate the functions of the HB-4020-S from the features of the 4020-X and 4020-AC main units, enabling you to plan capacity and system configuration correctly. For questions regarding expansion levels, operating conditions, and selecting the appropriate HiBattery-4020-Systems Our German-speaking service is available to you.

Frequently asked questions

What is included in the delivery of the Hoymiles HB-4020-S?

Included are an HB-4020-S battery module, a user manual, two handles, two mounting brackets, and the M6, M5, and M4 screws listed in the manual. A 4020-X or 4020-AC main unit is not included.

-- Which main devices is the HB-4020-S compatible with?

The expansion battery is only approved for use with the Hoymiles HiBattery 4020 X and HiBattery 4020 AC. It is not a standalone storage device.

How many HB-4020-S units can be added?

Up to three expansion modules can be added to each compatible main unit. Together with the main unit battery, a system capacity of up to 16,08 kWh is possible when using the Hoymiles Smart Meter.

Variants

Datasheet & Instructions

Verified product-related documents and instructions.

01 Hoymiles HB-4020-S User Manual – with HiBattery 4020 AC Instructions · German · Official Hoymiles manual with scope of delivery, stacking instructions and technical specifications for the HiBattery Stack HB-4020-S. 02 Hoymiles HB-4020-S datasheet – with HiBattery 4020 AC Datasheet · German · Official Hoymiles datasheet; the HB-4020-S parameters are listed in the document section for the extension battery.

Technical information

The values ​​that determine the purchase.

Battery

battery technology LiFePO4 (LFP)
Nominal energy 4.020 Wh
Usable energy 3,62 kWh at 90% depth of discharge
capacity 314 Ah
cycle life ≥ 8.000 cycles at 70% SOH

Electrics

nominal voltage 12,8 V
voltage range 11,2-14,6 V

Offering

Rated charging/discharging power 2.000 W
Maximum charging/discharging power 2.000 W

Operation

Operating temperature -20 to 55℃
Own heating Automatically at temperatures below 0 °C
Permissible humidity 5-100%
Maximum operating altitude 4.000 m
Cooling Natural convection

Housing

Dimensions (W × H × D) 520 × 275 × 199 mm
Weight 35 kg
Protection class IP66K
37.000+ installed balcony power plants
Since 2022 Experience with solar solutions
30 years Warranty on solar panels
11.000 kWh in battery storage systems

Experience that creates trust

Why Mini Power

Mini Power helps you choose balcony power plants, storage systems, solar panels, and suitable accessories. Product information, scope of delivery, and compatibility are clearly presented so you can select a system that suits your location and energy needs. If you have any questions, you can contact us directly at info@miniminipower.com.

Start your own energy transition with Mini Power.

Mini Power Google Reviews: 4,7 out of 5 based on 694 reviews
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Frequently asked questions

Question & Answer

Answers to key purchasing questions regarding compatibility, performance, installation, and scope of delivery.

How much energy is usable with the HB-4020-S?

Hoymiles states 3,62 kWh of usable energy at 90% depth of discharge; the nominal energy is 4,02 kWh.

What voltage does the HB-4020-S operate at?

The nominal voltage is 12,8 V. The voltage range specified by the manufacturer is 11,2 to 14,6 V.

What charging and discharging power does the extension battery support?

The nominal and maximum power for charging and discharging is 2.000 W each within a compatible HiBattery 4020 system.

What is the cycle life?

Hoymiles states a minimum of 8.000 cycles to 70% state of health.

How does the self-heating system work in cold weather?

At temperatures below 0 °C, the HB-4020-S automatically activates its heating element to ensure it reaches the permissible charging range. The operating range is -20 to 55 °C.

What does the IP66 protection rating mean for the HB-4020-S?

IP66 indicates the level of enclosure protection specified by the manufacturer. However, installation and operation must still comply with the instructions in the user manual.

What are the dimensions and weight of the battery module?

The HB-4020-S measures 520 × 275 × 199 mm and weighs 35 kg.

What warranty applies to the HB-4020-S?

Hoymiles offers a 10-year product warranty. The performance warranty covers at least 70% of the design energy or up to 27,2224 MWh of energy throughput, whichever comes first.

What is included in the delivery of the Hoymiles HB-4020-S?

Included are an HB-4020-S battery module, a user manual, two handles, two mounting brackets, and the M6, M5, and M4 screws listed in the manual. A 4020-X or 4020-AC main unit is not included.

Which main devices is the HB-4020-S compatible with?

The expansion battery is only approved for use with the Hoymiles HiBattery 4020 X and HiBattery 4020 AC. It is not a standalone storage device.

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