FranklinWH
FranklinWH 15kWh aPower 2 Battery APR-10K15V2-US
FranklinWH aPower 2 battery: Smart 15kWh Energy Storage for Home Backup
The FranklinWH aPower 2 is a next-generation 15 kWh AC-coupled home battery energy storage system featuring a built-in 10 kW continuous / 15 kW surge inverter. Designed for whole-home backup, solar self-consumption, and time-of-use optimization, the aPower 2 delivers unmatched performance, scalability, and safety using lithium iron phosphate (LFP) chemistry.
Key Technical Features
- 15 kWh AC-Coupled LFP Energy Storage – High-density lithium iron phosphate chemistry delivers long cycle life, improved thermal stability, and enhanced safety.
- Integrated 10 kW Continuous / 15 kW Surge Inverter – Built-in bidirectional inverter with up to 15 kW surge capability (10 seconds), enabling true whole-home backup including large loads.
- 120/240V Split-Phase Output (Single-Phase) – Native split-phase architecture supports standard U.S. residential electrical systems.
- AC-Coupled Architecture – Seamless integration with existing solar inverters or new PV systems.
- High System Scalability – Supports expansion up to 15 batteries per aGate controller (up to 225 kWh total).
- Advanced Battery Management System (BMS) – Continuously monitors cell voltage, temperature, current, and state of charge.
- IP67 Battery Pack / IP56 Wiring Enclosure – Supports indoor or outdoor installations.
- Low Acoustic Profile – ~30 dBA typical, suitable for garages, utility rooms, or exterior wall mounting.
- Grid-Forming & Backup-Ready Operation – Capable of islanding during outages.
- Certified for U.S. Standards – UL 9540, UL 1973, UL 1741 (PCS & SB), IEEE 1547, FCC Part 15, UN 38.3, CA Rule 21, SGIP.
Product Specifications
| Feature | Specification |
|---|---|
| Model Number | APR-10K15V2-US |
| Battery Type | Lithium Iron Phosphate (LFP) |
| Nominal Energy | 15 kWh |
| Usable Energy | 13.6 kWh |
| Nominal Voltage | 51.2 V |
| Rated Output Power | 10 kW (Continuous) |
| Peak Output Power | 15 kW (10 seconds) |
| AC Coupling | Integrated AC-coupled inverter |
| Round-Trip Efficiency | >90% |
| Operating Temperature | -4°F to 122°F (-20°C to 50°C) |
| Dimensions (HxWxD) | 45.2 in × 29.5 in × 11.8 in (1149 mm × 750 mm × 300 mm) |
| Weight | 357 lbs (162 kg) |
| Enclosure Rating | IP67 (battery) / IP56 (wiring enclosure) |
| Communication | Wi-Fi, Ethernet, CAN |
| Scalability | Up to 15 units per aGate controller |
| Certifications | UL 9540, UL 1741, UL 1973, IEEE 1547, CA Rule 21, SGIP, FCC Part 15, UN 38.3 |
| Warranty | 15 Years or 60 MWh throughput (whichever comes first) |
Applications
- Solar energy storage
- Backup power for outages
- Time-of-use (TOU) optimization
- Off-grid living (with appropriate system design)
Documents & Resources
- 📄 Official Datasheet (PDF) – FranklinWH aPower 2
- 📄 Data Sheet Download
- 📄 Installation Guide (PDF)
- 📄 Warranty Guide (PDF)
Warranty
The FranklinWH aPower 2 is backed by a 15-year product warranty or 60 MWh throughput (whichever comes first), reflecting long design life and confidence in LFP chemistry. Rated for over 6,000 cycles at 80% depth of discharge.
About FranklinWH
FranklinWH (founded 2019, San Jose, CA) is a leading innovator in home energy management solutions, dedicated to providing safe, reliable, and intelligent products that empower homeowners. Their AC-coupled whole-home energy solution features the aPower 2 LFP battery and aGate smart energy management controller.
Reliable Backup Power for Everyday Energy Needs
The FranklinWH aPower 2 battery is designed to give homeowners dependable backup power when the grid goes down. With a strong 15kWh storage capacity, it can support essential household loads and help keep daily life running during outages. This makes it a practical solution for families who want more control over their energy use and better protection from unexpected power interruptions. Built for home energy storage, it offers a balance of capacity, performance, and convenience. For households looking for a trusted battery backup system, this model delivers reliable support in a clean, modern package.
High-Capacity Design for Smarter Energy Management
As a FranklinWH aPower 2 battery, this unit is built to help homeowners store more solar or grid energy and use it when it matters most. Its 15kWh capacity provides room for larger energy demands, making it well-suited for homes that want stronger backup coverage or better daily load management. Instead of depending only on utility power during peak hours, users can draw from stored energy to improve efficiency and reduce waste. This smart approach to energy storage can also support long-term savings by helping households manage consumption more effectively. It is a forward-thinking choice for modern residential energy systems.
Clean Installation and Residential Compatibility
The FranklinWH 15kWh aPower 2 Battery APR-10K15V2-US is made with residential use in mind, offering a design that fits naturally into home energy setups. Its compact and organized build helps simplify installation and supports a more streamlined battery setup compared with bulkier systems. Homeowners and installers benefit from a product that is easier to integrate with compatible energy equipment and solar solutions. This makes it a strong option for new system builds or upgrades to existing storage systems. When homeowners want a practical solution that combines performance with ease of use, this battery stands out as a dependable and user-friendly choice.
A Long-Term Solution for Energy Independence
Investing in the FranklinWH aPower 2 battery is a step toward greater energy independence and long-term household resilience. By storing excess energy for later use, it helps reduce reliance on the grid and gives users more flexibility in how they power their home. This is especially valuable in areas with frequent outages, high electricity rates, or growing interest in solar self-consumption. The 15kWh capacity supports a wide range of backup and energy management goals, making it suitable for homeowners who want a reliable storage system they can count on. It is a strong solution for those planning ahead for a more stable energy future.