BYD Battery-Box Premium HVM 22.1 vs RCT Power Battery 7.6
Technical comparison · High voltage
BYD Battery-Box Premium HVM 22.1 and RCT Power Battery 7.6 are not direct competitors: different use classes. RCT Power Battery 7.6 is the entry-level choice; BYD Battery-Box Premium HVM 22.1 offers more capability in a higher class. Judge them by budget, not head-to-head.
| Parameter |
Battery-Box Premium HVM 22.1
BYD
F5 · Large-house-sized (over 20 kWh)
|
Battery 7.6
RCT Power
F3 · Flat-sized (3–8 kWh)
|
|---|---|---|
| In brief | ||
| Usable capacity | 22.08 kWh | 6.91 kWh |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Weight | — | 102 kg |
| Dimensions (W×D×H) | 58.5 × 29.8 × 216 cm | 34 × 34 × 106 cm |
| How long it lasts | ||
| Battery life cycles | 3094 cicli | 3650 cicli |
| The limit that runs out first | energia garantita | anni di garanzia |
| Rated cycles | 3650 cicli | — |
| Warranty | 10 anni | 10 anni |
| Guaranteed throughput | 68.31 MWh | — |
| Guaranteed remaining capacity | 60 % | 80 % |
| The numbers | ||
| Energy density | — | 67.7 Wh/kg |
| Identity | ||
| Use tier | F5 — Large-house-sized (over 20 kWh) | F3 — Flat-sized (3–8 kWh) |
| Category specs | ||
| Depth of discharge | 100 % | 90 % |
| Expandable | Yes | Yes |
| Maximum expanded capacity | 66.2 kWh | 15.36 kWh |
| Battery voltage | 409.6 V | 307 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. | RCT Power Storage DC (6.0/8.0/10.0 LAN, 12.0): intervallo di tensione lato batteria 120-600 V dichiarato dall'inverter, entro cui rientra questa taglia (307 V nominali, 240-346 V di range). |
| Round-trip efficiency | 96 % | — |
| Standby consumption | — | 5 W |
| Ingress protection | IP55 | ip42 |
| Mounting | Floor standing | Floor standing |
| Minimum temperature | -10 °C | 5 °C |
| Maximum temperature | 50 °C | 40 °C |
| Works without internet | Fully | — |
| Local control | Local network | None |
| Open protocols | CAN bus | — |
| App required for setup | Yes | — |
| Declared standards | CE, UN 38.3, IEC 62619, VDE 2510-50 | CE, UN 38.3, IEC 62619 |
The differences that matter
- Usable capacity: BYD Battery-Box Premium HVM 22.1 22.08 kWh vs RCT Power Battery 7.6 6.91 kWh
- Ingress protection: BYD Battery-Box Premium HVM 22.1 IP55 · RCT Power Battery 7.6 ip42
- Local control: BYD Battery-Box Premium HVM 22.1 Local network · RCT Power Battery 7.6 None
- Declared standards: BYD Battery-Box Premium HVM 22.1 CE, UN 38.3, IEC 62619, VDE 2510-50 · RCT Power Battery 7.6 CE, UN 38.3, IEC 62619
Which one to choose
Choose BYD Battery-Box Premium HVM 22.1 if…
you value usable capacity. It is the most capable in its class.
Choose RCT Power Battery 7.6 if…
you prefer this set-up — ingress protection: ip42; local control: none.
This comparison points to the two product pages, where you'll find the complete data and the official links.