Enphase IQ Battery 5P vs Enphase IQ Battery 10C
A straight, side by side read on specs and warranties, with the honest caveats. Every figure is from the manufacturer datasheet; sources are at the bottom.
| Spec | Enphase IQ Battery 5P | Enphase IQ Battery 10C |
|---|---|---|
| Chemistry | LFP | LFP |
| Usable capacity | 5 kWh | 10 kWh |
| Continuous power | 3.84 kW | 7.08 kW |
| Peak power | 7.68 kW | Not published |
| Round-trip efficiency | 90% | 90% |
| Warranty | over 60 percent capacity at up to 15 years or 6,000 cycles | 60 percent capacity at up to 15 years or 6,000 cycles |
| Backup scope | Whole-home capable | Whole-home capable |
| Inverter | Integrated | Integrated |
What actually differs
- More usable capacity: the Enphase IQ Battery 10C offers 10 kWh vs 5 kWh, so at that size it carries more of your home for longer per charge.
- More continuous power: the Enphase IQ Battery 10C sustains 7.08 kW vs 3.84 kW, which matters for running big loads like an AC at once.
Which one pays off is a numbers question.
Neither spec sheet tells you the payback in your home. That comes from your rate plan and incentives.
Run the Worth It calculator →IQ Battery 5P vs IQ Battery 10C FAQ
Is the Enphase IQ Battery 5P or the Enphase IQ Battery 10C better?
Neither is universally better. The Enphase IQ Battery 10C carries more usable capacity (10 kWh vs 5 kWh), while the smaller unit can cost less and fit tighter spaces. The right pick depends on your home's loads, backup needs, and budget, not the brand on the box.
What is the difference in usable capacity between the Enphase IQ Battery 5P and the Enphase IQ Battery 10C?
The Enphase IQ Battery 5P offers 5 kWh and the Enphase IQ Battery 10C offers 10 kWh of usable capacity.
Which has more continuous power, the Enphase IQ Battery 5P or the Enphase IQ Battery 10C?
The Enphase IQ Battery 10C sustains 7.08 kW continuous vs 3.84 kW, which matters for running big loads like an air conditioner at once.
Is the Enphase IQ Battery 5P or the Enphase IQ Battery 10C cheaper?
Neither spec sheet tells you the installed cost or the payback in your home. That depends on your electricity rate plan and local incentives, so run the numbers for your address rather than comparing sticker prices.
Sources
Source: Enphase IQ Battery 5P datasheet, May 2025. Specs verified 2026-07-01. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.
Source: Enphase IQ Battery 10C datasheet, Feb 2026. Specs verified 2026-08-06. Figures are per single unit at beginning of life; confirm the current datasheet with your installer.