Best 5–10 kWh home batteries (2026)
20 models in our database meet this; below the 20 in order.
Criteria:
- Usable capacity from 5 up to 10 kWh
- Ranking: data score with these weights: Round-trip efficiency 25 % · Warranted cycles 20 % · Warranty 20 % · Discharge power (continuous) 20 % · Backup power 15 %
A ranking based on manufacturer and register data, not a test: we have not measured the units ourselves, and price, installation and service are not included. The source of every value is on the product page.
The ranking
Image: BYDrequest removal BYD Battery-Box Premium HVM 8.3
Data score 80/100
- Round-trip efficiency 96 %: joint best of 15 models
- With backup power
Choose this model if you want to lose as little energy as possible when charging and discharging.
Image: BYDrequest removal BYD Battery-Box Premium HVS 7.7
Data score 80/100
- Round-trip efficiency 96 %: joint best of 15 models
- With backup power
Choose this model if you want to lose as little energy as possible when charging and discharging.
Image: BYDrequest removal BYD Battery-Box Premium HVS 5.1
Data score 80/100
- Round-trip efficiency 96 %: joint best of 15 models
- With backup power
Choose this model if you want to lose as little energy as possible when charging and discharging.
Image: Froniusrequest removal Fronius Reserva 9.5
Data score 63/100
- Discharge power (continuous) 9.83 kW: the best of 22 models in this selection
- With backup power
Choose this model if you want to run large loads such as a heat pump, induction hob or EV charger from the battery.
Image: Deyerequest removal Deye SE-G5.1 Pro-B
Data score 61/100
- Discharge power (continuous) 5.12 kW: no. 5 of 22 models
Choose this model if you want to run large loads such as a heat pump, induction hob or EV charger from the battery.
Image: Froniusrequest removal Fronius Reserva 6.3
Data score 60/100
- Discharge power (continuous) 6.55 kW: no. 4 of 22 models
- With backup power
Choose this model if you want to run large loads such as a heat pump, induction hob or EV charger from the battery.
Image: Enphaserequest removal Enphase IQ Battery 5P with FlexPhase
Data score 57/100
- Warranty 15 years: the best of 28 models in this selection
- With backup power
- Weaker point: Round-trip efficiency 90 %: no. 15 of 15 models
Choose this model if a long manufacturer’s warranty matters to you.
Image: Deyerequest removal Deye AI-W5.1-10P3-EU-B
Data score 56/100
Image: Deyerequest removal Deye AI-W5.1-12P3-EU-B
Data score 56/100
Image: Deyerequest removal Deye AI-W5.1-5P3-EU-B
Data score 56/100
Image: Deyerequest removal Deye AI-W5.1-6P3-EU-B
Data score 56/100
Image: Deyerequest removal Deye AI-W5.1-8P3-EU-B
Data score 56/100
SolaX T-BAT H 9.0
Data score 56/100
- Discharge power (continuous) 7.6 kW: no. 2 of 22 models
Choose this model if you want to run large loads such as a heat pump, induction hob or EV charger from the battery.
SolaX T-BAT H 6.0
Data score 51/100
SMA Home Storage 9.8
Data score 46/100
- With backup power
- Weaker point: Round-trip efficiency 94.5 %: no. 13 of 15 models
Choose this model if you want (part of) your home to keep running during a power cut.
SMA Home Storage 6.5
Data score 46/100
- With backup power
- Weaker point: Round-trip efficiency 94.5 %: no. 13 of 15 models
Choose this model if you want (part of) your home to keep running during a power cut.
SolaX T-BAT H 5.8 V3
Data score 42/100
Sessy 2.0 5 kWh
Data score 34/100
- Weaker point: Discharge power (continuous) 1.7 kW: no. 22 of 22 models
Image: VARTArequest removal 
Image: VARTArequest removal
All figures at a glance
| # | Model1 | Data score | Usable capacity | Round-trip efficiency | Discharge power (continuous) | Warranty | Cell chemistry |
|---|---|---|---|---|---|---|---|
| 1 | BYD Battery-Box Premium HVM 8.3 | 80 | 8.28 kWh | 96 % | – | 10 years | LFP |
| 2 | BYD Battery-Box Premium HVS 7.7 | 80 | 7.68 kWh | 96 % | – | 10 years | LFP |
| 3 | BYD Battery-Box Premium HVS 5.1 | 80 | 5.12 kWh | 96 % | – | 10 years | LFP |
| 4 | Fronius Reserva 9.5 | 63 | 9.47 kWh | 95 % | 9.83 kW | 10 years | LFP |
| 5 | Deye SE-G5.1 Pro-B | 61 | 5.12 kWh | – | 5.12 kW | 10 years | LFP |
| 6 | Fronius Reserva 6.3 | 60 | 6.31 kWh | 95 % | 6.55 kW | 10 years | LFP |
| 7 | Enphase IQ Battery 5P with FlexPhase | 57 | 5 kWh | 90 % | – | 15 years | LFP |
| 8 | Deye AI-W5.1-10P3-EU-B | 56 | 5.12 kWh | 95.5 % | – | 10 years | LFP |
| 9 | Deye AI-W5.1-12P3-EU-B | 56 | 5.12 kWh | 95.5 % | – | 10 years | LFP |
| 10 | Deye AI-W5.1-5P3-EU-B | 56 | 5.12 kWh | 95.5 % | – | 10 years | LFP |
| 11 | Deye AI-W5.1-6P3-EU-B | 56 | 5.12 kWh | 95.5 % | – | 10 years | LFP |
| 12 | Deye AI-W5.1-8P3-EU-B | 56 | 5.12 kWh | 95.5 % | – | 10 years | LFP |
| 13 | SolaX T-BAT H 9.0 | 56 | 8.3 kWh | 95 % | 7.6 kW | 10 years | LFP |
| 14 | SolaX T-BAT H 6.0 | 51 | 5.5 kWh | 95 % | 5.1 kW | 10 years | LFP |
| 15 | SMA Home Storage 9.8 | 46 | 9.84 kWh | 94.5 % | – | 10 years | LFP |
| 16 | SMA Home Storage 6.5 | 46 | 6.56 kWh | 94.5 % | – | 10 years | LFP |
| 17 | SolaX T-BAT H 5.8 V3 | 42 | 5.5 kWh | – | 2.9 kW | 10 years | LFP |
| 18 | Sessy 2.0 5 kWh | 34 | 5.2 kWh | – | 1.7 kW | 10 years | LFP |
| 19 | VARTA pulse neo 6 | 20 | 5.9 kWh | – | 2.3 kW | 10 years | – |
| 20 | VARTA element backup 6 | 19 | 5.9 kWh | – | 1.8 kW | 10 years | – |
How this ranking is made
This selection is put together automatically from the 20 models in our database that meet the criteria above. We only include models whose figures for the ranking are known: without those values a model cannot be compared fairly, so it drops out. The list is recalculated with every data update, so the order can change as soon as manufacturers or registers publish new values.
The order follows a data score from 0 to 100. For each feature we determine a model’s position relative to the other models in this selection: the best value counts as 100, the weakest as 0, and equal values share the same position. We add up those positions with weights: Round-trip efficiency 25 % · Warranted cycles 20 % · Warranty 20 % · Discharge power (continuous) 20 % · Backup power 15 %. A feature that is unknown for a model does not count; if more than 40 per cent of the weight is missing, the model is left out. If two scores are equal, usable capacity decides.
The reasoning for each place is derived automatically from the same data. We name the features on which the model is in the best quarter of this selection, functions that not every model has, and a weaker point if the model falls in the bottom quarter on it. The line ‘Choose this model if …’ links the most heavily weighted strength to a situation where it matters. This is not a test and not personal advice: the installation, your home and the price also decide what works best for you.
The values come from manufacturers; the product page shows the source of every value. How we collect and check the data →
More selections
Sources
- Battery-Box Premium HVM – datasheet, BCU2.0 V1.0 EN (28.03.2025) — BYD Lithium Battery Co., Ltd. · accessed 27 Sept 2026