Head to head
Enphase IQ Battery 5P vs sonnenCore+ 10 kWh
Enphase · Home Battery System
Enphase IQ Battery 5P
~$6,500
3,840 W / 7,680 W surge · up to fridge, freezer and the essentials
sonnen · Home Battery System
sonnenCore+ 10 kWh
~$9,500
4,800 W / 8,640 W surge · up to furnace blower, sump pump or a window AC
Quick takeThe Enphase IQ Battery 5P lists about $3,000 lower; the sonnenCore+ 10 kWh puts out more sustained power (4,800 W).
| Spec | Enphase IQ Battery 5P | sonnenCore+ 10 kWh |
|---|---|---|
| Approx. price | ~$6,500 | ~$9,500 |
| Type | Home Battery System | Home Battery System |
| Fuel | Battery (LiFePO4) | Battery (LiFePO4) |
| Running / output watts | 3,840 W | 4,800 W |
| Starting / surge watts | 7,680 W | 8,640 W |
| Battery capacity | 5,000 Wh | 10,000 Wh |
| Expandable to | 40,000 Wh | 60,000 Wh |
| Noise | — | 25 dB |
| Runtime | Fridge (~150W): ~28 hrs per module | Fridge (~150W): ~60 hrs on one 10 kWh unit; essentials (~1kW): about 9 hrs |
| Outlets | Hardwired 240V AC-coupled; backup circuits via IQ System Controller | None — hardwired; AC-coupled with 35 A pass-through for a backup subpanel, 200 A with the AC Connections module |
| Fuel tank | — | — |
| Weight | 174 lbs | 353 lbs |
| Transfer-switch ready | Yes | Yes |
| Warranty | 15-year | 10-year or 10,000-cycle system warranty |
Highlighted cell is the better figure for that row.
Owner pros and cons
Enphase IQ Battery 5P
- +15-year / 6,000-cycle warranty - longest in the industry
- +Distributed microinverters mean no single point of failure
- +Modular sizing: start at 5kWh, add modules anytime
- +96% DC round-trip efficiency
- +Seamless integration and monitoring with existing Enphase solar
- +7.68kW peak per module aids motor starting despite modest continuous rating
- −$1,000-1,600 per installed kWh - among the priciest mainstream options
- −Whole-home backup requires 3+ modules plus costly IQ System Controller
- −3.84kW continuous per module is weak alone - central AC needs multiple
- −Enphase-ecosystem lock-in for full functionality
sonnenCore+ 10 kWh
- +Spec-sheet noise under 25 dB, quiet enough for a living-space wall
- +Stackable to 60 kWh as 10 kWh or 20 kWh cabinets
- +10-year / 10,000-cycle warranty covers the inverter too
- +UL 9540 and UL 1741 listings on the spec sheet
- +Eligible for sonnen VPP programs where offered
- −4.8 kVA continuous is low for whole-home backup
- −Round-trip efficiency peaks near 85%, below most competitors
- −Cabinet weighs 353 lb and must be mounted indoors (IP30)
- −Few installers carry sonnen in the US
- −Stacking must be all-10 kWh or all-20 kWh, no mixing