FranklinWH aPower 2 Battery: A Comprehensive Review of Specs, Performance, and Value

The FranklinWH Home Power system is a powerful, all-in-one residential battery solution that combines robust energy storage with intelligent home energy management. Designed to work with both new and existing solar systems, it offers homeowners a way to maximize energy efficiency, stay powered during outages, and reduce reliance on the utility grid.

With its high-capacity aPower2 battery and the smart aGate controller, FranklinWH delivers seamless integration, fast backup transition, and smart load control capabilities. In this review, we break down the system’s key specifications, monitoring features, warranty details, costs, and overall value to help you decide if FranklinWH is the right battery solution for your home.

FranklinWH Battery System Spec Breakdown

The FranklinWH battery system is composed of two main parts: the aPower2 battery unit and the aGate energy management controller. These two components work together to provide whole-home backup, solar energy storage, and advanced load management. Below, we explore each of the core technical specs that define this system.

See full FranklinWH aPower 2 battery spec sheet here.

Type of Battery: FranklinWH aPower 2 batteries use Lithium Iron Phosphate (LFP) battery chemistry. LFP is widely recognized for its excellent thermal stability, long lifespan, and enhanced safety compared to traditional lithium-ion batteries. It is less prone to overheating and maintains performance through thousands of cycles, making it ideal for daily cycling.

Energy Capacity: Each FranklinWH aPower 2 battery unit stores 15 kWh of usable energy. This puts it on par with or above many competitors, including Tesla’s Powerwall 3 and Enphase’s IQ Battery 5P, in terms of single-unit storage.

Scalability: One of the standout features of the FranklinWH aPower 2 battery is its modular design. Homeowners can install up to 15 aPower2 units in parallel, resulting in a maximum total capacity of 225 kWh per aGate. This scalability makes it suitable for a range of applications, from modest homes to large estates with high energy usage.

Continuous Power: Each FranklinWH aPower 2 battery unit provides 10 kW of continuous power output. This level of output supports a variety of essential loads, including lighting, refrigerators, internet routers, and more. This is often enough to keep a home running efficiently during a grid outage.

Peak Power: The FranklinWH aPower2 battery system is capable of delivering up to 15 kW of peak power per unit for 10 seconds, which is particularly helpful when starting heavy appliances such as HVAC systems or sump pumps.

Depth of Discharge (DoD): FranklinWH aPower 2 batteries support 100% depth of discharge, meaning you can use the full 15 kWh of stored energy without prematurely degrading the battery. This ensures homeowners get the most value and utility from their battery over time.

Efficiency: FranklinWH aPower 2 batteries offer a round-trip efficiency of approximately 90%, which is on par with or slightly above many competing residential batteries. This reflects the proportion of energy retained after charging and discharging, impacting overall performance and savings.

AC-Coupled Dimensions Each FranklinWH aPower 2 battery unit measures approximately 45.2 in × 29.5 in × 11.8 in. This compact footprint allows it to be mounted indoors or outdoors, with multiple units stackable side-by-side depending on your energy needs and installation space.

Inverter Integration: Because it is AC-coupled, FranklinWH aPower 2 batteries work with most existing solar inverter brands, including SolarEdge, Enphase, and SMA. This gives it a major advantage for homeowners who want to retrofit their existing solar systems without replacing the inverter.

FranklinWH Battery System Monitoring

The FranklinWH mobile app provides homeowners with detailed, real-time monitoring and control of their battery system. Through the app, users can view energy production, consumption, and storage data. They can also toggle between operation modes like self-consumption, backup, and time-of-use optimization.

One standout feature is the ability to control smart circuits connected to the aGate. This lets homeowners prioritize or disconnect loads based on real-time conditions, battery level, or time-of-day schedules. Combined with system diagnostics and remote firmware updates, the app ensures easy management of your home’s energy profile.

FranklinWH Battery System Warranty

FranklinWH backs its battery system with a 15-year limited warranty, which covers both performance and product quality. The warranty guarantees that the battery will retain at least 70% of its original capacity after 15 years or 60 MWh of throughput per unit, whichever comes first.

This level of coverage is competitive with other premium battery systems and reflects confidence in the long-term durability of the LFP chemistry and system architecture.

See full warranty details for the FranklinWH battery system.

FranklinWH Battery System Cost & ROI

While the FranklinWH aPower 2 battery system requires an initial financial investment, the long-term benefits far outweigh the upfront costs. Homeowners can expect to see significant returns in terms of energy savings, backup power, and the peace of mind that comes with energy security.

• Cost: The FranklinWH aPower 2 battery system currently costs around $10,000 to $12,000. This includes the aGate energy management and other accessories, but does not include the cost of installation. This is also before discounts, rebates, tax credits, and other incentives that can drastically cut the cost of installing a FranklinWH aPower 2 battery system.

• Incentives and Rebates: Homeowners who install the FranklinWH aPower 2 battery system may qualify for several financial incentives, including the 30% federal solar tax credit, which can significantly reduce the cost of installing solar and battery storage systems. Additionally, many states offer rebates and incentive programs to encourage the adoption of renewable energy and energy storage systems. Depending on where you live, these incentives can dramatically reduce the cost of installing the FranklinWH aPower 2 battery system. Learn more about solar and battery incentives you could qualify for.

• Long-Term Savings: The FranklinWH aPower 2 battery system offers long-term financial savings by reducing homeowners’ dependence on the grid, optimizing energy usage, and taking advantage of time-of-use rates. Over its lifetime, the FranklinWH aPower 2 battery system can pay for itself through reduced energy bills, and in many cases, homeowners could see a return on their investment within a few years. Additionally, the backup power capabilities of the FranklinWH aPower 2 system provide peace of mind during outages, further enhancing its value.

While the initial cost may seem high, the combination of financial incentives, long-term savings, and energy independence make the FranklinWH aPower 2 battery system a wise investment for many households.

Get your free battery backup quote today.

Conclusion

The FranklinWH aPower 2 battery system offers one of the most advanced, flexible, and robust battery systems available to residential customers today. With its high capacity, smart load management, AC-coupled versatility, and long warranty, it’s an excellent fit for homeowners seeking whole-home backup, energy bill savings, or full energy independence.

Whether you’re starting fresh with solar or looking to retrofit your existing system, the FranklinWH battery system is a solution worth serious consideration. For those who want to take control of their power and prepare for an increasingly unpredictable energy future, FranklinWH delivers.

By adopting this cutting-edge technology, you’re not only gaining energy independence but also contributing to the broader goal of creating a more sustainable and resilient energy future for all.

Are you interested in how battery backup can help you, your family, or your business? Chat with our battery backup experts today to see your battery options and get a free quote.