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UK
140 models

Home batteries

Compare 140 home batteries on usable capacity, charging power, efficiency and warranty (source: ENA and manufacturers). With backup power lists.

140 models1,2,3,4

  1. sonnen sonnenBatterie 10 performance 10p / 55

    Usable
    50 kWh
    Nominal capacity
    55 kWh
    Charge
    9.9 kW
    Discharge
    9.9 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  2. sonnen sonnenBatterie 10 performance 10p / 44

    Usable
    40 kWh
    Nominal capacity
    44 kWh
    Charge
    9.9 kW
    Discharge
    9.9 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  3. sonnen sonnenBatterie 10 performance+ 10p+/44

    Usable
    40 kWh
    Nominal capacity
    44 kWh
    Charge
    12 kW
    Discharge
    12 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    10 of 24 fields

  4. Sungrow SBH400

    Usable
    40 kWh
    Nominal capacity
    40 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    160 kWh
    Warranty
    10 years

    12 of 24 fields

  5. Sungrow SBH350

    Usable
    35 kWh
    Nominal capacity
    35 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    160 kWh
    Warranty
    10 years

    12 of 24 fields

  6. sonnen sonnenBatterie 10 performance 10p / 33

    Usable
    30 kWh
    Nominal capacity
    33 kWh
    Charge
    9.9 kW
    Discharge
    9.9 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  7. sonnen sonnenBatterie 10 performance+ 10p+/33

    Usable
    30 kWh
    Nominal capacity
    33 kWh
    Charge
    12 kW
    Discharge
    12 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    55 kWh
    Warranty
    10 years

    12 of 24 fields

  8. Sungrow SBH300

    Usable
    30 kWh
    Nominal capacity
    30 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    160 kWh
    Warranty
    10 years

    12 of 24 fields

  9. E3/DC S10 E PRO COMPACT

    Usable
    29.2 kWh
    Nominal capacity
    –
    Charge
    9 kW
    Discharge
    9 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    –
    Coupling
    –
    Expandable to
    52.3 kWh
    Warranty
    10 years

    12 of 24 fields

  10. GoodWe LX F28.8-H-20

    Usable
    28.8 kWh
    Nominal capacity
    28.8 kWh
    Charge
    20.16 kW
    Discharge
    20.16 kW
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    230 kWh
    Warranty
    –

    13 of 24 fields

  11. GoodWe LX F25.6-H-20

    Usable
    25.6 kWh
    Nominal capacity
    25.6 kWh
    Charge
    17.92 kW
    Discharge
    17.92 kW
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    230 kWh
    Warranty
    –

    13 of 24 fields

  12. Sungrow SBR256

    Usable
    25.6 kWh
    Nominal capacity
    25.6 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    11 of 24 fields

  13. Sungrow SBH250

    Usable
    25 kWh
    Nominal capacity
    25 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    160 kWh
    Warranty
    10 years

    12 of 24 fields

  14. Growatt ARK 25.6L

    Usable
    23.04 kWh
    Nominal capacity
    25.64 kWh
    Charge
    5 kW
    Discharge
    5 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  15. GoodWe LX F22.4-H-20

    Usable
    22.4 kWh
    Nominal capacity
    22.4 kWh
    Charge
    15.68 kW
    Discharge
    15.68 kW
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    230 kWh
    Warranty
    –

    14 of 24 fields

  16. Sungrow SBR224

    Usable
    22.4 kWh
    Nominal capacity
    22.4 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    11 of 24 fields

  17. BYD Battery-Box Premium HVM 22.1

    Usable
    22.08 kWh
    Nominal capacity
    –
    Charge
    –
    Discharge
    –
    Efficiency
    96 %
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    66.2 kWh
    Warranty
    10 years

    12 of 24 fields

  18. Growatt ARK 23.0L

    Usable
    20.73 kWh
    Nominal capacity
    23.04 kWh
    Charge
    5 kW
    Discharge
    5 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  19. Huawei LUNA2000-21-S1

    Usable
    20.7 kWh
    Nominal capacity
    –
    Charge
    10.5 kW
    Discharge
    10.5 kW
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    –

    11 of 24 fields

  20. sonnen sonnenBatterie 10 performance 10p / 22

    Usable
    20 kWh
    Nominal capacity
    22 kWh
    Charge
    9.9 kW
    Discharge
    9.9 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  21. sonnen sonnenBatterie 10 performance+ 10p+/22

    Usable
    20 kWh
    Nominal capacity
    22 kWh
    Charge
    12 kW
    Discharge
    12 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  22. sonnen sonnenBatterie 10/22

    Usable
    20 kWh
    Nominal capacity
    22 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    198 kWh
    Warranty
    10 years

    9 of 24 fields

  23. Sungrow SBH200

    Usable
    20 kWh
    Nominal capacity
    20 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    160 kWh
    Warranty
    10 years

    12 of 24 fields

  24. SMA Home Storage 19.6

    Usable
    19.68 kWh
    Nominal capacity
    –
    Charge
    –
    Discharge
    –
    Efficiency
    94.5 %
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    DC-coupled
    Expandable to
    19.68 kWh
    Warranty
    10 years

    10 of 24 fields

  25. BYD Battery-Box Premium HVM 19.3

    Usable
    19.32 kWh
    Nominal capacity
    –
    Charge
    –
    Discharge
    –
    Efficiency
    96 %
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    66.2 kWh
    Warranty
    10 years

    12 of 24 fields

  26. GoodWe LX F19.2-H-20

    Usable
    19.2 kWh
    Nominal capacity
    19.2 kWh
    Charge
    13.44 kW
    Discharge
    13.44 kW
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    230 kWh
    Warranty
    –

    14 of 24 fields

  27. Sungrow SBR192

    Usable
    19.2 kWh
    Nominal capacity
    19.2 kWh
    Charge
    –
    Discharge
    –
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    11 of 24 fields

  28. Huawei LUNA2000-19-S1

    Usable
    18.8 kWh
    Nominal capacity
    –
    Charge
    10.5 kW
    Discharge
    10.5 kW
    Efficiency
    –
    DoD
    100 %
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    –

    11 of 24 fields

  29. Growatt ARK 20.4L

    Usable
    18.43 kWh
    Nominal capacity
    20.48 kWh
    Charge
    5 kW
    Discharge
    5 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    LFP
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

  30. VARTA element backup 18

    Usable
    17.6 kWh
    Nominal capacity
    19.5 kWh
    Charge
    4 kW
    Discharge
    4 kW
    Efficiency
    –
    DoD
    –
    Cell chemistry
    –
    Coupling
    –
    Expandable to
    –
    Warranty
    10 years

    12 of 24 fields

Features

Green = yes · struck through = no · dashed = unknown

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Alpha ESS 8

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Anker SOLIX 1
Bluetti 1
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E3/DC 2
EcoFlow 5

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HomeWizard 1
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Marstek 5

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Pylontech 1
SAX Power 1
Sessy 2
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sonnen 12

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Tesla 1
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Guides

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Selections

Choosing a home battery: capacity, power and lifespan

The most important figure is the usable capacity in kWh: the energy you can actually take out. The nominal capacity is larger, because the battery management never lets the cells run completely empty or full. The depth of discharge (DoD) is the ratio between the two. So always compare usable with usable. The continuous charge and discharge power in kW determines how much of your consumption the battery can cover at any moment: a 10 kWh battery with 2.5 kW of discharge power cannot fully supply an induction hob and a washing machine together, even when it is still full.

Round-trip efficiency tells you how much of the stored electricity comes back out; the rest is lost as heat in the cells and the inverter. Check whether the manufacturer measures from AC to AC, including the inverter, or only the battery on the DC side: the latter comes out higher. Cell chemistry says something about lifespan and safety: lithium iron phosphate (LFP) usually reaches more cycles and is thermally more stable than NMC. The warranty is often stated in years and also in cycles or throughput in MWh; whichever is reached first applies. Also read what remaining capacity the manufacturer promises at the end of the warranty.

Size the capacity to your evening and night-time consumption and, if you have solar panels, to the surplus left over during the day; a much larger battery rarely fills up completely. An AC-coupled battery has its own inverter and is easy to add later; a DC-coupled battery works with a hybrid inverter and loses less when charging from solar panels. Backup power and off-grid are not the same thing: with backup power part of the home keeps running during an outage, while off-grid runs entirely without the grid. Plug-in batteries go into an ordinary wall socket and have limited power.

The data comes largely from the manufacturers’ technical datasheets. For part of the models we check capacities and power ratings against official lists: the approved batteries list of the Australian Clean Energy Regulator and the UK type test register of the Energy Networks Association (ENA); we only show models that are also sold in Europe. A caveat: manufacturers do not always measure capacity and efficiency under the same conditions, and whether a battery pays off depends heavily on your tariff and the rules in your country, not only on the specifications.

Sources

  1. T-BAT H 3.0 V2 Datasheet, V2.6 — SolaX · accessed 25 Oct 2026
  2. CEC approved solar batteries (Australia) — Clean Energy Regulator (Australian Government), CC BY 4.0 · accessed 29 Sept 2026
  3. Manufacturer data · accessed 22 Oct 2026
  4. ENA Type Test Register (inverters) — Energy Networks Association (ENA) · accessed 27 Sept 2026