BYD Battery-Box Premium HVM 19.3 vs SMA Home Storage 6.5
Technical comparison · High voltage
BYD Battery-Box Premium HVM 19.3 is ahead on usable capacity; beyond that the two differ in ingress protection and mounting, which is a design choice rather than a ranking. On the category's technical index, BYD Battery-Box Premium HVM 19.3 ranks #2 of 17, SMA Home Storage 6.5 #17.
| Parameter |
Battery-Box Premium HVM 19.3
BYD
F4 · House-sized (8–20 kWh)
|
Home Storage 6.5
SMA
F3 · Flat-sized (3–8 kWh)
|
|---|---|---|
| In brief | ||
| Usable capacity | 19.32 kWh | 6.56 kWh |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Weight | — | 76 kg |
| Dimensions (W×D×H) | 58.5 × 29.8 × 192.7 cm | 61 × 21.46 × 96.9 cm |
| How long it lasts | ||
| Battery life cycles | 3094 cicli | 730 cicli |
| The limit that runs out first | energia garantita | anni di garanzia |
| Rated cycles | 3650 cicli | 8000 cicli |
| Capacity at end of cycle life | — | 60 % |
| Warranty | 10 anni | 2 anni |
| Guaranteed throughput | 59.77 MWh | 47.232 MWh |
| Guaranteed remaining capacity | 60 % | 60 % |
| The numbers | ||
| Energy density | — | 86.3 Wh/kg |
| Identity | ||
| Use tier | F4 — House-sized (8–20 kWh) | F3 — Flat-sized (3–8 kWh) |
| Category specs | ||
| Depth of discharge | 100 % | 100 % |
| Expandable | Yes | Yes |
| Maximum expanded capacity | — | 16.4 kWh |
| Battery voltage | 358.4 V | 192 V |
| Declared compatible inverters | Sedici marchi nell'elenco ufficiale: Fronius, GoodWe, Viessmann, KOSTAL, SMA, Sungrow, GE, KACO, KACO NH, Ingeteam, Solis, Canadian Solar, Deye, Solplanet, Western CO, Sosen. Per ciascun modello l'elenco dà il numero di moduli ammessi e la versione minima del firmware. | Compatibile con entrambi gli inverter ibridi della gamma Smart Energy di SMA: il monofase Sunny Boy Smart Energy (da 1 a 4 moduli) e il trifase Sunny Tripower Smart Energy (da 2 a 5 moduli). È la prima taglia della gamma che può scegliere fra i due. Non retrofittabile sui vecchi Sunny Boy Storage (SBS2.5-1VL-10, SBS3.7-10-SBS6.0-10) né con inverter di altri marchi. |
| Round-trip efficiency | 96 % | 94.5 % |
| Standby consumption | — | 4 W |
| SPI index (HTW Berlin) | — | 92.8 % |
| HTW test power class | — | 5 kW class |
| HTW test edition | — | Stromspeicher-Inspektion 2026 |
| Ingress protection | IP55 | IP65 |
| Mounting | Floor standing | Wall mounted |
| Minimum temperature | -10 °C | -10 °C |
| Maximum temperature | 50 °C | 50 °C |
| Works without internet | Fully | — |
| Local control | Local network | — |
| Open protocols | CAN bus | — |
| Remote updates | — | Can be disabled |
| App required for setup | Yes | — |
| Declared standards | CE, UN 38.3, IEC 62619, VDE 2510-50 | CE, UN 38.3, IEC 62619, IEC 62477, VDE 2510-50 |
The differences that matter
- Usable capacity: BYD Battery-Box Premium HVM 19.3 19.32 kWh vs SMA Home Storage 6.5 6.56 kWh
- Warranty: BYD Battery-Box Premium HVM 19.3 10 years vs SMA Home Storage 6.5 2 years
- Guaranteed throughput: BYD Battery-Box Premium HVM 19.3 59.77 MWh vs SMA Home Storage 6.5 47.232 MWh
- Ingress protection: BYD Battery-Box Premium HVM 19.3 IP55 · SMA Home Storage 6.5 IP65
- Mounting: BYD Battery-Box Premium HVM 19.3 Floor standing · SMA Home Storage 6.5 Wall mounted
Which one to choose
Choose BYD Battery-Box Premium HVM 19.3 if…
you value usable capacity, warranty and guaranteed throughput.
Choose SMA Home Storage 6.5 if…
you prefer this set-up — ingress protection: IP65; mounting: wall mounted.
This comparison points to the two product pages, where you'll find the complete data and the official links.