Back to Home11/13/2025, 8:32:07 PM

Tesla Recalls Powerwall 2 AC Battery Power Systems Due to Fire and Burn Hazards

tguvot
34 points
18 comments

Mood

skeptical

Sentiment

negative

Category

tech

Key topics

Tesla

Powerwall 2

Product Safety

Energy Storage

Debate intensity70/100

Tesla recalls 10,500 Powerwall 2 battery systems due to fire and burn hazards, sparking concerns about product reliability and safety, with commenters criticizing Tesla's technology and testing practices.

Snapshot generated from the HN discussion

Discussion Activity

Active discussion

First comment

2m

Peak period

18

Day 1

Avg / period

18

Comment distribution18 data points

Based on 18 loaded comments

Key moments

  1. 01Story posted

    11/13/2025, 8:32:07 PM

    5d ago

    Step 01
  2. 02First comment

    11/13/2025, 8:33:40 PM

    2m after posting

    Step 02
  3. 03Peak activity

    18 comments in Day 1

    Hottest window of the conversation

    Step 03
  4. 04Latest activity

    11/14/2025, 5:48:20 PM

    4d ago

    Step 04

Generating AI Summary...

Analyzing up to 500 comments to identify key contributors and discussion patterns

Discussion (18 comments)
Showing 18 comments
microdrum
5d ago
1 reply
Tesla Powerwall products (including Powerwall 3) have a massive failure rate. Seems like 10% over lifetime. Shoddy technology compared to the leading competitors, especially the inverter. They should go back to white labeling cheap Delta inverters.
londons_explore
5d ago
1 reply
In the industrial world, where the real money is to be made, a high failure rate of the individual units isn't an issue.

You simply overspec the site by perhaps 2% to allow 2% of units to fail and the whole system is still working to specification.

Then you design the replacement procedure for the battery or inverter modules to take 10 seconds per module and swapping the faulty ones out only takes a few man-hours per year even for a gigawatt scale installation.

microdrum
4d ago
exactly right -- although tesla is weak on power electronics for the industrial scale sites, too. there are SPOFs there in the power conversion chain.

but a DISASTER in residential.

bgwalter
5d ago
5 replies
Tesla down 7%, P/E still at 275, as opposed to 9 for companies that produce working vehicles like Mercedes Benz.
baq
5d ago
1 reply
So, what does the market know that we don’t?
ASalazarMX
5d ago
1 reply
Dude, we are the market, and we don't know why Musk deserves a trillion dollars out of Tesla. You must mean insiders.
bogomipblips
5d ago
Insiders know how to work a ponzi scheme without any provable evidence of collusion.
mc32
5d ago
If MB is feeling particularly confident maybe they can out manœuvre the market like Wiedeking did.
bix6
5d ago
Hey come on they’re making robotaxi eventually! Surely that’s worth 275!!!
TheAlchemist
5d ago
They will start loosing money this quarter. That way it fixes the high P/E aspect of things.

Now they will be a 'pure play' in Robotics & AI !

I love this scene from Silicon Valley:

https://www.youtube.com/watch?v=BzAdXyPYKQo

This show was really ahead of its time. "If you show revenue people will ask how much and it will never be enough" /s Imaginary trillions of revenues from Optimus are definitely much more appealing.

Workaccount2
5d ago
But they will have 1 million robotaxis on the road by year end...err...1 million optimus robots working in factories by year end 2026!
ActorNightly
5d ago
2 replies
Its honestly baffling to me that people trust their lives to Tesla autopilot. The company has a record track of making products that aren't well tested.
johnisgood
5d ago
1 reply
I have been hearing so much about Tesla and fire in the same sentence... Maybe someone more knowledgeable and experienced can chime in about it.
ActorNightly
5d ago
Knowing what I know about Space X, basically its shortcuts after shortcuts. My guess is that the controller firmware is cobbled together from parts, and there is some condition that causes failure to restrict output current.

However unlike Space X where they do test launches, Tesla most likely just pushes products out to public and lets the public beta test them.

mensetmanusman
5d ago
1 reply
Which company will have a car you can summon next?
ActorNightly
4d ago
Summoning is a neat tech application.

Self driving is a whole another thing. I would trust Comma AI autopilot before I would trust Teslas (even though every time Hotz speaks he glazes Elon), because at least you can tell that Comma has actual smart people that think about the code they are writing.

1970-01-01
5d ago
10,500 units that "Tesla has remotely discharged (or removed energy from the battery of) affected Powerwall 2 systems that are online to prevent overheating until the replacement is installed. "

I bet all contracts are conveniently missing the word "guaranteed"

tguvot
5d ago
Hazard:

The lithium-ion battery cells in certain Powerwall 2 systems can cause the unit to stop functioning during normal use, which can result in overheating and, in some cases, smoke or flame and can cause death or serious injury due to fire and burn hazards.

Remedy: Replace

Recall Date: November 13, 2025

Units: About 10,500

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ID: 45920126Type: storyLast synced: 11/17/2025, 6:04:15 AM

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