Head to head
Tesla Powerwall 3 vs FranklinWH aPower 2
Tesla · Home Battery System
Tesla Powerwall 3
~$15,000
11,500 W · up to well pump or a small central AC
FranklinWH · Home Battery System
FranklinWH aPower 2
~$16,000
10,000 W / 15,000 W surge · up to well pump or a small central AC
Quick takeThe Tesla Powerwall 3 lists about $1,000 lower; the Tesla Powerwall 3 puts out more sustained power (11,500 W).
| Spec | Tesla Powerwall 3 | FranklinWH aPower 2 |
|---|---|---|
| Approx. price | ~$15,000 | ~$16,000 |
| Type | Home Battery System | Home Battery System |
| Fuel | Battery (LiFePO4) | Battery (LiFePO4) |
| Running / output watts | 11,500 W | 10,000 W |
| Starting / surge watts | — | 15,000 W |
| Battery capacity | 13,500 Wh | 15,000 Wh |
| Expandable to | 54,000 Wh | 225,000 Wh |
| Noise | — | — |
| Runtime | Fridge (~150W): ~76 hrs (3+ days) per unit | Fridge (~150W): ~85 hrs (3.5 days) per unit |
| Outlets | Hardwired 120/240V whole-home via Gateway 3, Backup Gateway 2 or Backup Switch | Hardwired 120/240V whole-home via aGate controller |
| Fuel tank | — | — |
| Weight | 287 lbs | 357 lbs |
| Transfer-switch ready | Yes | Yes |
| Warranty | 10-year | 15-year |
Highlighted cell is the better figure for that row.
Owner pros and cons
Tesla Powerwall 3
- +11.5kW continuous + 185A LRA starts central AC without soft-starters
- +Integrated 6-MPPT solar inverter saves $2,000+ on new solar installs
- +Lowest installed cost per kWh of any major brand
- +LFP chemistry with 10-year, 70%-retention warranty
- +Storm Watch auto-charges before forecast severe weather
- −Some owners describe long support delays, though one early owner says support improved through 2025
- −Installer quote variance of thousands of dollars for identical systems
- −DC-couples only to Tesla's own solar - existing inverters must AC-couple
- −No federal tax credit in 2026 (25D expired) makes payback longer
FranklinWH aPower 2
- +15kWh per cabinet - best single-unit capacity in the industry
- +15kW surge starts 5-ton HVAC without soft-start kits
- +AC-coupled: compatible with any existing solar inverter brand
- +aGate integrates generator input for indefinite outage endurance
- +Outdoor-rated -4°F to 122°F with a 15-year warranty
- −Installed quotes vary by thousands between dealers
- −357 lbs requires two-plus installers and solid wall mounting
- −Newer dealer network than Tesla/Generac in some regions