Franklin APR-10K15V2-US aPower 2 Battery – 15kWh Whole Home Backup with 10kW Power & 15-Year Warranty
The FranklinWH aPower 2 (SKU: APR-10K15V2-US) is a 15kWh home battery built for whole-home backup. This second-generation AC-coupled LFP battery integrates with solar systems, the grid, generators, and EVs to store and deliver power.
Engineered for homes with high loads, the Franklin aPower 2 15kWh battery is rated to power central AC units and essential appliances, often with a single unit for full-home coverage.
Key Performance Specs: 15kWh Capacity & 10kW Output
- Usable Energy Capacity: 15 kWh per unit (expandable up to 225 kWh with 15 units per aGate controller)
- Continuous Output Power: 10 kW
- Peak Power: 15 kW for 10 seconds – rated to start a 5-ton air conditioner (185 A LRA surge capability) while running other loads
- Charge Rate: Up to 8 kW from solar, grid, or generator
- Round-Trip Efficiency: 90%
- AC-Coupled Design: Compatible with existing solar inverters for retrofit or new installs
Rated for high-draw appliances such as HVAC, EV chargers, or pool pumps during peak times or outages.
Durability: 15-Year Warranty & LFP Chemistry
Backed by a 15-year limited warranty (or 60 MWh throughput—over 10,000 cycles), the aPower 2 is rated for at least 70% capacity retention at the end of the period. Lithium Iron Phosphate (LFP) chemistry provides thermal stability and long cycle life.
Scalable, Weatherproof, and Quiet for Any Installation
- Stack up to 15 units for 225 kWh total capacity—for large homes, small businesses, farms, or off-grid setups
- IP67 Rating: Dust-tight and water-immersion resistant (battery pack & inverter); Type 3R enclosure overall—suitable for indoor or outdoor use
- Wide Temperature Range: Operates from -4°F to 122°F (-20°C to 50°C), with derated performance up to 131°F
- Quiet Operation: Natural air cooling, ~30 dBA typical, no fans
- Dimensions & Weight: 45.2″ H × 29.5″ W × 11.8″ D (1149 × 750 × 300 mm); 357 lb (162 kg) – wall or floor mount
Smart Features for Control
- Time-of-Use (TOU) Optimization: Charge during off-peak rates, discharge during peak periods
- FranklinWH App: Real-time monitoring of state of charge, energy flow, and system status, plus a customizable LED light strip for status indicators
- Work Modes: Self-consumption, TOU arbitrage, emergency backup, off-grid ready, black start, and generator integration
The FranklinWH aPower 2 is built for whole-home battery backup, with 15kWh capacity and 10kW continuous output per unit.
Ordering and Shipping
Batteries and inverters ship FREE. Contact Sun Supply PV for stock availability, compatibility checks with your solar inverter, and pricing. Availability is subject to current stock — contact us for lead times.
(Specs verified from official FranklinWH datasheet and warranty documents. Always consult a certified installer for your specific configuration.)
U.S. Based Support

