A Tesla owner says a steep drop in battery performance ended with an expensive problem avoided.
After two Powerwall 2 units lost more than 30% of their capacity, Tesla replaced them under warranty with two new Powerwall 3 systems. The homeowner shared their experience on Reddit's r/Powerwall forum.
Here's what to know
In the Reddit thread, the original poster said the manufacturer's support team first examined the system remotely, then emailed to confirm a problem before sending installers to replace both units with Powerwall 3s.
OP wrote, "I wasn't sure what to expect since they didn't really elaborate beyond saying there was an 'issue,' but lo and behind a couple of pallets from Tesla showed up in my driveway… Today a couple of techs came and installed two brand new Powerwall 3s. Pretty pleased with the warranty service. Communication could've been a little better, but very happy to get two brand new batteries, not to mention having the full capacity again."
Commenters joined the thread with clarifying questions and similar experiences. One asked, "Just curious why they moved them closer to the ground? My installer tried to do that and I said no way because of flood risk."
A second user asked, "Did they replace the PW 2 inverter too?" OP responded to this, writing, "My existing solar inverters are still in use. They replaced the PW gateway."
A separate commenter complimented the install quality, writing, "Those installers did a great job on redoing the pipe."
Still, home batteries are a major purchase, and a warranty replacement on that scale can save a homeowner from paying out of pocket for new backup equipment. Battery storage can also help protect a home during outages, lower energy costs, and reduce reliance on the grid. It can also provide peace of mind where grid reliability is a growing concern.
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For homeowners still weighing their options, EnergySage is one place to explore home battery storage options and get competitive installation estimates. EnergySage has teamed up with electrification brand Qmerit to help homeowners get the best price on home battery storage solutions.
For people who want backup power without committing to a whole-home system, Pila offers plug-and-play batteries priced at a fraction of what a whole-home backup system costs. This way, you can back up individual appliances, like refrigerators.
Where can I learn more?
Other Powerwall stories have looked at similar questions about degradation, replacements, and warranty limits.
• Owners learned the 10-year warranty won't reset after a recall-related Powerwall 3 swap.
• A homebuyer found Powerwall 2 units below 70% capacity before a basement removal fight.
• Users said an app glitch may explain a new Powerwall showing 69% health.
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