RCT Power Battery 11.5 vs SMA Home Storage 6.5
Technical comparison · High voltage
RCT Power Battery 11.5 and SMA Home Storage 6.5 sit in the same category (High voltage). RCT Power Battery 11.5 is ahead on: warranty. SMA Home Storage 6.5 is ahead on: standby consumption. On the category's technical index, RCT Power Battery 11.5 ranks #4 of 17, SMA Home Storage 6.5 #17.
| Parameter |
Battery 11.5
RCT Power
F4 · House-sized (8–20 kWh)
|
Home Storage 6.5
SMA
F3 · Flat-sized (3–8 kWh)
|
|---|---|---|
| In brief | ||
| Usable capacity | 10.37 kWh | 6.56 kWh |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Weight | 150 kg | 76 kg |
| Dimensions (W×D×H) | 34 × 34 × 152 cm | 61 × 21.46 × 96.9 cm |
| How long it lasts | ||
| Battery life cycles | 3650 cicli | 730 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | — | 8000 cicli |
| Capacity at end of cycle life | — | 60 % |
| Warranty | 10 anni | 2 anni |
| Guaranteed throughput | — | 47.232 MWh |
| Guaranteed remaining capacity | 80 % | 60 % |
| The numbers | ||
| Energy density | 69.1 Wh/kg | 86.3 Wh/kg |
| Identity | ||
| Use tier | F4 — House-sized (8–20 kWh) | F3 — Flat-sized (3–8 kWh) |
| Category specs | ||
| Depth of discharge | 90 % | 100 % |
| Expandable | Yes | Yes |
| Maximum expanded capacity | 23 kWh | 16.4 kWh |
| Battery voltage | 461 V | 192 V |
| Declared compatible inverters | 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 (461 V nominali, 360-520 V di range). Questa è la taglia abbinata alla Storage DC 10.0 LAN nel sistema misurato dalla HTW. | 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 | — | 94.5 % |
| Standby consumption | 5 W | 4 W |
| SPI index (HTW Berlin) | 96.4 % | 92.8 % |
| HTW test power class | 10 kW class | 5 kW class |
| HTW test edition | Stromspeicher-Inspektion 2026 | Stromspeicher-Inspektion 2026 |
| Ingress protection | ip42 | IP65 |
| Mounting | Floor standing | Wall mounted |
| Minimum temperature | 5 °C | -10 °C |
| Maximum temperature | 40 °C | 50 °C |
| Local control | None | — |
| Remote updates | — | Can be disabled |
| Declared standards | CE, UN 38.3, IEC 62619 | CE, UN 38.3, IEC 62619, IEC 62477, VDE 2510-50 |
The differences that matter
- Warranty: RCT Power Battery 11.5 10 years vs SMA Home Storage 6.5 2 years
- Usable capacity: RCT Power Battery 11.5 10.37 kWh vs SMA Home Storage 6.5 6.56 kWh
- Standby consumption: RCT Power Battery 11.5 5 W vs SMA Home Storage 6.5 4 W
- HTW test power class: RCT Power Battery 11.5 10 kW class · SMA Home Storage 6.5 5 kW class
- Ingress protection: RCT Power Battery 11.5 ip42 · SMA Home Storage 6.5 IP65
Which one to choose
Choose RCT Power Battery 11.5 if…
you value warranty and usable capacity.
This comparison points to the two product pages, where you'll find the complete data and the official links.