“The best choice for homeowners who want maximum capacity and the longest warranty guarantee.”
The FranklinWH aPower 2 ($15,000–$20,000) is recommended with a 8.5/10 consensus score across 6 expert reviews. Experts highlight 15 kwh per unit — most storage from a single residential battery and 15-year warranty is longest standard coverage on any residential battery. Solar.com says: "The best choice for homeowners who want maximum capacity and the longest warrant..." Best for: Maximum capacity seekers, Existing solar retrofits, Long warranty priority.

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FranklinWH aPower 2
Energy
SmartHomeExplorer proprietary rating
6 expert sources
The FranklinWH aPower 2 earns a SHE Score of 6.6/10, driven by strong value (10/10) with room to improve in compatibility breadth (5/10). Based on 6 expert sources and SmartHomeExplorer compatibility analysis.
How we calculate the SHE Score →Expert Consensus: 8.5/10 across 6 sources
Last verified:“The best choice for homeowners who want maximum capacity and the longest warranty guarantee.”
Key Features
- ✓ 15 kWh usable
- ✓ 15-year warranty
- ✓ AC-coupled
- ✓ LFP chemistry
- ✓ IP67 all-weather
Best For
What Experts Agree On
What Experts Love
- ✓ 15 kWh per unit — most storage from a single residential battery
- ✓ 15-year warranty is longest standard coverage on any residential battery
- ✓ IP67-rated, operates from -4°F to 122°F
- ✓ AC-coupled design works with any existing solar inverter brand
- ✓ Scales to 225 kWh (15 units per controller)
Common Criticisms
- ✗ 90% round-trip efficiency below Powerwall 3's 97.5%
- ✗ Requires separate aGate controller ($1,500–$2,500 extra)
- ✗ Smaller installer network than Tesla
- ✗ App polish is not Tesla-level
What The Experts Say
“The aPower 2 wins on raw storage and warranty but loses on power output headroom for high-draw homes.”
Ready to buy the FranklinWH aPower 2?
Check Price on Amazon$15,000–$20,000 · 6 expert sources · 8.5/10 consensus
Frequently Asked Questions
Is the FranklinWH aPower 2 worth it?
FranklinWH aPower 2 earns a 8.5/10 consensus score across our 12 expert sources. It is rated "Recommended" — Maximum capacity seekers. At $15,000–$20,000, The best choice for homeowners who want maximum capacity and the longest warranty guarantee.
Who is the FranklinWH aPower 2 best for?
FranklinWH aPower 2 is best for: Maximum capacity seekers, Existing solar retrofits, Long warranty priority. Experts rate it "Recommended" overall.
How does the FranklinWH aPower 2 compare to other Energy options?
Among the Energy products we have reviewed, FranklinWH aPower 2 ranks above average with a 8.5/10 score. The aPower 2 wins on raw storage and warranty but loses on power output headroom for high-draw homes.
What smart home systems does the FranklinWH aPower 2 work with?
FranklinWH aPower 2 works with major smart home platforms. Check our compatibility notes on the product page for any setup requirements or hub dependencies.
What are the pros and cons of the FranklinWH aPower 2?
The main pros of the FranklinWH aPower 2 are 15 kwh per unit — most storage from a single residential battery and 15-year warranty is longest standard coverage on any residential battery. The main downside is 90% round-trip efficiency below powerwall 3's 97.5%. Overall, experts rate it "Recommended" with a 8.5/10 consensus score.
Affiliate disclosure: SmartHomeExplorer.com participates in the Amazon Associates program. We earn a commission from qualifying purchases at no extra cost to you. This consensus review is based on 6 independent expert reviews — we did not test this product ourselves. Always verify current prices and availability before purchasing.

