Residential
Solis FlexHome modular battery 5–40 kWh · low voltage
Solis FlexHome (5–40 kWh) is a versatile modular low-voltage (LV) energy storage system for flexibly building backup power systems in private homes and commercial facilities. Its modular design lets capacity grow easily from 5 to 40 kWh within a single unit, delivering high reliability and adaptability to any task.
Models
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Overview
Solis FlexHome (5–40 kWh) is a scalable low-voltage (LV) energy storage system created to build efficient off-grid and backup power systems in houses, cottages, offices and small business premises. The key advantage of the FlexHome series is its flexibility: you can start with a basic 5 kWh module and expand capacity up to 40 kWh as the site's demand grows.
The battery packs are built around safe, long-life premium-quality LiFePO₄ (lithium iron phosphate) cells rated for more than 6,000 charge-discharge cycles. An integrated multi-level battery management system (BMS) monitors the voltage, current and temperature of every cell, ensuring absolute fire and electrical safety under intensive operation.
The system is designed for seamless connection to Solis hybrid inverters. It delivers high charge and discharge currents for rapid solar energy accumulation or charging from the grid/generator, guarantees switchover to backup power in under 10 ms, and supports remote monitoring through the SolisCloud service.
Key specifications
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Storage capacity (kWh)
5–40
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Battery voltage
Low voltage — LV (48 V)
Key features
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A modular design expandable from 5 to 40 kWh lets you tailor capacity flexibly to individual needs
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The use of safe LiFePO₄ battery cells guarantees high thermal stability and a service life of over 6000 cycles
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Full compatibility with Solis hybrid inverters for maximum energy-flow management efficiency
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Seamless switchover to backup power (< 10 ms) protects sensitive household and office equipment from disruption
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Support for high charge and discharge currents for accelerated energy storage from solar panels, the grid or a diesel generator
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Multi-level intelligent BMS protection monitors the condition of every cell in real time
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Convenient monitoring and diagnostics via SolisCloud for full control of system parameters from a smartphone or PC
Technical specifications
Models
SKU: FlexHome Stackable Battery (LV) 5kWh
Performance
- Battery type
- LiFePO4
- Rated capacity (energy)
- 5 kWh
- Rated capacity (energy)
- 10 kWh
- Rated capacity (energy)
- 15 kWh
- Rated capacity (energy)
- 20 kWh
- Rated capacity (energy)
- 25 kWh
- Rated capacity (energy)
- 30 kWh
- Rated capacity (energy)
- 35 kWh
- Rated capacity (energy)
- 40 kWh
- Operating voltage
- 44.8-57.6 V
- Cell capacity
- 100 A·h
- Recommended charge / discharge current
- 50 A
- Recommended charge / discharge current
- 100 A
- Recommended charge / discharge current
- 150 A
- Recommended charge / discharge current
- 200 A
- Recommended charge / discharge current
- 210 A
- Recommended charge / discharge current
- 210 A
- Recommended charge / discharge current
- 210 A
- Recommended charge / discharge current
- 210 A
- Max. discharge current
- 100 A
- Max. discharge current
- 200 A
- Max. discharge current
- 210 A
- Max. discharge current
- 210 A
- Max. discharge current
- 210 A
- Max. discharge current
- 210 A
- Max. discharge current
- 210 A
- Max. discharge current
- 210 A
- Depth of discharge
- Max. 100% DOD
- Display
- SOC indicator, status indicator
- Communication
- CAN/RS485
- Cycle life
- ≥6000
Protection
- Overvoltage / undervoltage protection
- Yes
- Overcurrent protection
- Yes
- Over-temperature / under-temperature protection
- Yes
- DC circuit breaker
- Yes
- DC circuit breaker
- Yes
- DC circuit breaker
- Yes
- DC circuit breaker
- y
- DC circuit breaker
- y
- DC circuit breaker
- y
- DC circuit breaker
- y
- DC circuit breaker
- y
- DC fuses
- Yes
- Aerogel thermal insulation plate
- Yes
- Fire suppression function
- Yes
- Explosion relief valves
- Yes
General data
- Dimensions (W × H × D)
- mm
- Weight
- 76 kg
- Weight
- 126 kg
- Weight
- 176 kg
- Weight
- 226 kg
- Weight
- 276 kg
- Weight
- 326 kg
- Weight
- 376 kg
- Weight
- 426 kg
- Cooling method
- Natural convection
- Ingress protection (IP)
- IP66
- Anti-corrosion protection class
- C5M
- Ambient operating temperature range
- -20~55 °C (Smart heating function)
- Storage temperature range
- -10~45 °C
- Relative humidity range
- 5~95 %
- Max. operating altitude
- 4000 m
- Mounting method
- Floor / wall mounting
- Scalability
- Up to 4 units in parallel
- Compatible inverters
- S6-EH2P(5-8)K02-SV-YD-L/S6-EH2P(9.6-16)K03-SV-YD-L-US/S6-EH3P(8-18)K02-NV-YD-L/S6-EH3P(7-10)K02-LV-YD-L/
- Standards compliance
- IEC 62619, IEC 63056, ISO13849, VDE 2510-50, UN 38.3,
Compatible equipment
Validated Solis hybrid inverters that match this battery's voltage and communication protocol.
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Learn moreSolis S6-EH3P 12 kW hybrid inverter · three-phase · high voltage
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Learn moreSolis S6-EH3P hybrid inverter (15–20) kW · three-phase · high voltage
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Learn moreSolis S6-EH1P hybrid inverter (3–10) kW · single-phase · low voltage
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Learn moreSolis S6-EH1P hybrid inverter (12–18) kW · single-phase · low voltage
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Learn moreSolis S6-EH3P hybrid inverter (5–18) kW · three-phase · low voltage
Documentation and certificates
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DownloadDatasheet
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна.pdf
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DownloadUser manual 1
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна_інструкція.pdf
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Download
User manual 2
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна_інструкція3.pdf
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Download
User manual 3
Акумуляторна батарея Solis IntelliHome 5–16 кВт·год · LV_інструкція4.pdf
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DownloadCertificate 1
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна_сертифікат.pdf
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Download
Certificate 2
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна_сертифікат2.pdf
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Download
Certificate 3
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна_сертифікат3.pdf
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Download
Certificate 4
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна_сертифікат4.pdf
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Download
Certificate 5
Модульна батарея Solis FlexHome 5–40 кВт·год · низьковольтна_сертифікат5.pdf
Frequently asked questions
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Start from the site's average daily consumption and the peak load the inverter has to carry in off-grid mode. The power range of each modification and the recommended PV array size for it are listed in the product card under "Key specifications" — for a precise selection, contact a Solis dealer or use the form below.
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The list of validated batteries is published on the product page — in the compatible-equipment section, where one has already been compiled for that model. The voltage range (LV or HV, depending on the series) is stated in the technical specifications either way. If there is no list, or the battery you need is not on it, contact the Solis Ukraine technical department — compatibility should be confirmed separately.
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Most Solis hybrid and off-grid inverters support connecting a generator with automatic start-up when the battery is discharged. Whether a specific model has this function, and how it is wired, is stated under "Key features" and in the "Technical specifications" table of the product card.
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It depends on the series: single-phase models are designed for a 220 V grid, three-phase models for 380/400 V. The exact connection type for a given product is stated in the "Grid phases" card under "Key specifications".
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Solis equipment carries the manufacturer's warranty, which in Ukraine is administered by official dealers and authorised service centres. The exact term and conditions are stated on the warranty card and on the device's rating plate — for registration and the claim procedure, see the Support section.
Didn't find your answer?
The Solis Ukraine technical department advises on equipment compatibility, wiring diagrams and system configuration.