10 kWh

Home battery systemEnphase Energy

Enphase Energy Q Battery 10C

10 kWh · 7.08 kW · Lithium Iron Phosphate

UL 9540UL 1741 SBCEC listed · Mar 23, 2026

Usable energy10 kWh
Continuous power7.08 kW
Round trip (AC)90%
ChemistryLithium Iron Phosphate

Overview

CEC Energy Storage System List

Q Battery 10C: 10 kWh usable energy; 7.08 kW continuous; lithium iron phosphate.

Capacity & power

CEC Energy Storage System List

Nameplate energy (CEC)10 kWh
Total energy (datasheet)10 kWh
Usable energy10 kWh
Rated power (CEC)7.08 kW
Max continuous discharge (CEC)7.08 kW
Continuous power (datasheet)7.08 kW
Full-power discharge timeabout 1.4 h at full power
Round-trip efficiency (AC-AC)90%
ChemistryLithium Iron Phosphate
Grid connection240 V
Battery voltage (DC, nominal)76.8–120 V

How long can it power your home?

Cali-Graf calculation · CEC Energy Storage System List

Average home load	Runtime from full
0.5 kW	≈ 20 h
1 kW	≈ 10 h
2 kW	≈ 5 h
3 kW	≈ 3.3 h
7.08 kW (full continuous power)	≈ 1.4 h

Runtime = 10 kWh usable (datasheet) ÷ load. A typical home averages 1–2 kW; air conditioning and EV charging use much more. Inverter and wiring losses shorten it.

Whole-home backupWhole-home backup
Power control (PCS) capableYes

Charging from solar in Southern California

NLR PVWatts v8 · Cali-Graf calculation · CEC Energy Storage System List

City	December	June
Los Angeles	3.1 kW	1.8 kW
Palmdale	2.9 kW	1.7 kW
Chula Vista	2.7 kW	1.9 kW
Huntington Beach	2.9 kW	2 kW
Riverside	3 kW	1.8 kW
Santa Clarita	2.9 kW	1.7 kW

Solar array size that refills the battery from empty in one average day, before the home uses any of it (NLR PVWatts v8, 20° south roof).

Direct PV inputNo

Inverter & compatible equipment

CEC Energy Storage System List

Integrated inverterIQBATTERY-10CS-1P-NA {240V}
Inverter CEC weighted efficiency96%
Inverter continuous output (CEC-measured)7.08 kW
Accepts solar input (hybrid)No
Rated AC power (SAM)7.1 kW
Direct PV inputNo

Installation & environment

CEC Energy Storage System List · Enphase Energy datasheet

Enclosure typeNEMA 3R
Mountingwall, rack
Weight per kWh1 kWh

Safety listings

CEC Energy Storage System List

UL 9540 (energy storage system)Certified by Intertek
Certificate date & editionJun 25, 2026 · Ed. 3 : 2023
UL 9540A (fire propagation test)Yes
Other standards on datasheetUL 1741, IEEE 1547, UL 9540A, UL 9540, UL 1973, UN 38.3

UL 9540 certifies the whole storage system; UL 9540A is the fire-propagation test that fire codes ask for indoors and near walls.

California grid & code compliance

CEC Energy Storage System List

UL 1741 SB (IEEE 1547-2018)Yes
UL 1741 SA (Rule 21)Yes
CSIP (IEEE 2030.5)Yes (with conditions)
Anti-islanding method groupsGroup 1 Anti-Island8
JA12 declaration (Title 24)Yes
JA12 control strategiesBasic, TOU
Last CEC updateSep 11, 2026

Full specifications

CEC Energy Storage System List · Enphase Energy datasheet

Communicationcan
Manufacturer websiteenphase.com

Compare with similar batteries

CEC Energy Storage System List

Battery	Energy	Continuous power	Chemistry	Warranty	SoCal permits
Enphase Energy ENCHARGE-10	10.1 kWh	3.84 kW	Lithium Iron Phosphate	10 years	197
Enphase Energy IQ Battery 10C	10 kWh	7.08 kW	Lithium Iron Phosphate	—	118
Enphase Energy ENCHARGE-10T	10.1 kWh	3.84 kW	Lithium Iron Phosphate	15 years	105
Villara Energy Systems VillaGrid	5.8–11.5 kWh	8 kW	Lithium Titanate Oxide	20 years	—
SolarEdge Home Battery	9.7 kWh	5 kW	Lithium Ion	10 years	677
Schneider Electric Schneider Boost	10 kWh	8.1 kW	Lithium Iron Phosphate	10 years	—

Same segment, similar capacity; each row from the same sources.

Documents

manufacturer documents

PDF
IQ Battery 10CS data sheet
Datasheet

Questions & answers

How much energy does the Enphase Energy Q Battery 10C store?

10 kWh usable, per the manufacturer datasheet.

How long can the Q Battery 10C power a home?

About 10 hours at an average 1 kW load from a full charge (10 kWh usable); higher loads shorten it.

Is the Q Battery 10C UL 9540 certified?

Yes — the CEC list shows UL 9540 certification (certified by intertek).

Sources

California Energy Commission — Energy Storage System List, data as of Oct 7, 2026. Manufacturer-reported values confirmed by CEC against certificates.
Enphase Energy — datasheet IQ Battery 10CS data sheet.
Enphase Energy — document library on the manufacturer’s website (links above).
NLR (formerly NREL) — PVWatts v8, NSRDB PSM v3 typical-year weather for Los Angeles, Palmdale, Riverside, Santa Clarita, Chula Vista, Huntington Beach.
Cali-Graf calculations — formulas and inputs are shown next to each calculated value (efficiency from area, temperature-corrected voltages, string sizing, energy estimates).