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PYTES Pi PLUS S15K

The PYTES Pi PLUS S15K is a home battery from PYTES. It stores 61.44 kWh in Lithium Iron Phosphate cells. Rated AC power 15 kW. Listed and verified: UL 9540. Sold in United States.

Specifications

Capacity
61.44 kWh
Battery chemistry
Lithium Iron Phosphate
Rated AC power
15 kW

Backup and savings with the PYTES Pi PLUS S15K

With 61.44 kWh of storage, the PYTES Pi PLUS S15K stores daytime solar for the evening and night, and with a backup-capable installation keeps a home running through a power cut. It delivers 15 kW of AC power, enough to run heat pumps, ovens and air conditioning alongside the rest of the house.

One full charge covers about 208% of an average US home's daily electricity use of 29.6 kWh.

Its LiFePO4 (lithium iron phosphate) cells are the long-life chemistry of home energy storage: rated for thousands of cycles and more thermally stable than other lithium-ion types.

LoadRuns for about
Essential circuits: fridge, lights, internet, phone charging (about 500 W)4.6 days
An average US home (about 1.23 kW around the clock)45 hours

Estimates. Electricity prices: U.S. Energy Information Administration, average household electricity use.

Product details

Product type
Home battery
Brand
PYTES · China
Category
Home Battery Storage
Sold in
United States
Listed in
California Energy Commission

Models (1)

Model Nominal capacity Usable capacity AC power Certificate
Pi PLUS S15K 61.44 kWh 15 kVA

Certifications

CertificationMarketStatusReferenceValid until
UL 9540 United States and Canada ✓ Verified 19 October 2026 SGS

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