Energy Depot DOMUS 2.5 vs RCT Power Battery 11.5
Technical comparison · High voltage
Energy Depot DOMUS 2.5 and RCT Power Battery 11.5 are not direct competitors: different use classes. Energy Depot DOMUS 2.5 is the entry-level choice; RCT Power Battery 11.5 offers more capability in a higher class. Judge them by budget, not head-to-head.
| Parameter |
DOMUS 2.5
Energy Depot
F2 · Room-sized (1–3 kWh)
|
Battery 11.5
RCT Power
F4 · House-sized (8–20 kWh)
|
|---|---|---|
| In brief | ||
| Usable capacity | 2.5 kWh | 10.37 kWh |
| Cell chemistry | LFP (lithium iron phosphate) | LFP (lithium iron phosphate) |
| Weight | 30 kg | 150 kg |
| Dimensions (W×D×H) | 44 × 32.8 × 18 cm | 34 × 34 × 152 cm |
| How long it lasts | ||
| Battery life cycles | 1825 cicli | 3650 cicli |
| The limit that runs out first | anni di garanzia | anni di garanzia |
| Rated cycles | 7000 cicli | — |
| Warranty | 5 anni | 10 anni |
| Guaranteed remaining capacity | 80 % | 80 % |
| The numbers | ||
| Energy density | 83.3 Wh/kg | 69.1 Wh/kg |
| Identity | ||
| Use tier | F2 — Room-sized (1–3 kWh) | F4 — House-sized (8–20 kWh) |
| Category specs | ||
| Depth of discharge | 100 % | 90 % |
| Expandable | Yes | Yes |
| Maximum expanded capacity | 20 kWh | 23 kWh |
| Battery voltage | 51.2 V | 461 V |
| Declared compatible inverters | CENTURIO, KACO blueplanet hybrid 10TL3 | 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. |
| Round-trip efficiency | 96 % | — |
| Standby consumption | 0.05 W | 5 W |
| SPI index (HTW Berlin) | 95.4 % | 96.4 % |
| HTW test power class | 10 kW class | 10 kW class |
| HTW test edition | Stromspeicher-Inspektion 2026 | Stromspeicher-Inspektion 2026 |
| Ingress protection | IP21 | ip42 |
| Mounting | — | Floor standing |
| Minimum temperature | 5 °C | 5 °C |
| Maximum temperature | 40 °C | 40 °C |
| Local control | — | None |
| Declared standards | CE, UN 38.3 | CE, UN 38.3, IEC 62619 |
The differences that matter
- Usable capacity: Energy Depot DOMUS 2.5 2.5 kWh vs RCT Power Battery 11.5 10.37 kWh
- Standby consumption: Energy Depot DOMUS 2.5 0.05 W vs RCT Power Battery 11.5 5 W
- Warranty: Energy Depot DOMUS 2.5 5 years vs RCT Power Battery 11.5 10 years
- Ingress protection: Energy Depot DOMUS 2.5 IP21 · RCT Power Battery 11.5 ip42
- Declared standards: Energy Depot DOMUS 2.5 CE, UN 38.3 · RCT Power Battery 11.5 CE, UN 38.3, IEC 62619
Which one to choose
Choose Energy Depot DOMUS 2.5 if…
you value standby consumption.
Choose RCT Power Battery 11.5 if…
you value usable capacity and warranty.
This comparison points to the two product pages, where you'll find the complete data and the official links.