FranklinWH aPower S 15 kWh Complete Solar and Battery System APRS-10K15V1-US

The FranklinWH aPower S APRS-10K15V1-US is a complete solar and battery energy storage solution that combines a 15kWh lithium iron phosphate (LFP) battery with an integrated hybrid inverter and four built-in solar MPPTs.

Designed for direct connection to photovoltaic modules, the aPower S simplifies solar-plus-storage system architecture while providing powerful whole-home backup capability.

Each aPower S provides 15kWh of usable system energy and supports up to 15 units per FranklinWH aGate, scaling system capacity to as much as 225kWh. T

The battery delivers up to 10kW continuous discharge power from the battery alone and up to 11.5kW continuous output when PV input is available. The integrated solar inverter supports up to 20kW maximum solar STC input, four independent MPPTs, and a PV operating range extending to 600VDC. 

Unrivaled Longevity

Also required: Franklin aGate

The aGate AGT-R1V3-US sits between the utility, house loads, aPower S, and other energy sources and decides where the power goes. Franklin describes it as the system's central energy-management controller.

Key Technology: aPowerS

• 15kWh Usable Battery Capacity
  Provides 15kWh of usable system energy per unit, supporting substantial residential energy storage and whole-home backup capability.

• Scalable to 225kWh
  Supports up to 15 aPower S units per FranklinWH aGate, allowing total storage capacity to scale up to 225kWh.

• Integrated Hybrid Inverter
  Combines battery storage and solar power conversion within one integrated platform, reducing the need for separate PV inverter hardware.

• Four Built-In MPPTs
  Includes four independent maximum power point trackers, each supporting up to 15A operating current for flexible PV array design.

• Up to 20kW Solar Input
  Supports up to 20kW maximum solar STC input, providing substantial PV capacity for residential solar-plus-storage systems.

• 10kW Battery-Only Continuous Output
  Provides up to 10kW continuous real power when operating from the battery without PV contribution.

• 11.5kW Continuous Output with PV
  When sufficient PV input is available, maximum continuous discharge capability increases to 11.5kW.

• 15kW Peak Output
  Provides up to 15kW peak power for 10 seconds, helping support appliances and equipment with higher startup requirements.

• 185A LRA Load Start Capability
  Designed with up to 185A locked-rotor-amperage startup capability at rated operating conditions for demanding residential loads.

• Lithium Iron Phosphate Chemistry
  Uses LFP battery chemistry for stable thermal characteristics and long service life.

• 90.5% Round-Trip Efficiency
  FranklinWH specifies 90.5% round-trip efficiency for the solar-to-battery-to-load energy path under defined test conditions.

• 97.5% Solar-to-Home/Grid CEC Efficiency
  High solar conversion efficiency helps maximize the usable energy produced by the connected PV array.

• Built-In Heating Blanket
  Integrated battery heating supports reliable operation in colder environments.

• IP67 Battery & Inverter Protection
  The battery pack and inverter carry an IP67 ingress-protection rating, while wiring components are rated IP55.

• Advanced Safety Protection
  Includes integrated arc-fault circuit interrupter (AFCI) and isolation-monitor interrupter protection.

• Revenue-Grade AC Metering
  Includes integrated metering with ±0.5% accuracy meeting ANSI C12.20 revenue-grade requirements.

• FranklinWH App Monitoring
  System operating modes, energy flows, battery status, and energy management functions are managed through the FranklinWH App.

• 15-Year / 60MWh Warranty
  Covered by a 15-year or 60MWh aggregate throughput warranty, subject to FranklinWH warranty terms.

Best Uses

• Residential Solar + Battery Storage
  Ideal for homeowners seeking an integrated PV inverter and battery storage solution.

• Whole-Home Backup
  The 15kWh battery capacity and high continuous/peak output make the system suitable for whole-home backup applications when properly configured.

• High-Solar-Input Homes
  Supports up to 20kW of solar STC input, making it suitable for homes with larger PV arrays.

• Large Energy Storage Systems
  Expandable to 225kWh per aGate for homes requiring substantial storage capacity or extended backup duration.

• Time-of-Use Energy Management
  Supports self-consumption, time-of-use optimization, and emergency backup operating modes.

• Indoor or Outdoor Installation
  Weather-resistant construction and wall- or floor-mounting options provide flexible installation possibilities.

Product Specifications

Complete 15kWh Solar and Battery Energy System

The FranklinWH aPower S APRS-10K15V1-US combines 15kWh usable LFP storage, an integrated hybrid inverter, four MPPTs, up to 20kW solar input, 10kW continuous battery-only output, 11.5kW continuous output with PV, 15kW peak power, IP67 protection, and a 15-year / 60MWh warranty in one scalable residential energy storage platform.

Why Buy From US Solar Supplier

US Solar Supplier is an American-founded company based in Kentucky dedicated to offering top-quality solar components from trusted manufacturers. We provide competitive pricing, dependable inventory, and products backed by warranties you can trust.

Our inventory is updated daily with the latest solar technologies, and our experienced team is ready to assist with product selection, system design, and installation guidance.

Need Assistance?

Have questions before you order? Call 1-800-230-7004 to speak with our knowledgeable support team. We’re here to help with product details, compatibility questions, or purchasing support.