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CT scans of 1k lithium-ion batteries show quality risks in inexpensive cells

(www.lumafield.com)
287 points jonbruner | 12 comments | 24 Sep 25 19:29 UTC | HN request time: 0.855s | source | bottom
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jeffbee ◴[26 Sep 25 21:30 UTC] No.45391223[source]▶
I just got a new tenant in my rental house and this time I had to add a clause to the lease enumerating brands of lithium-ion batteries the tenant is allowed to keep on the premises. These things are basically grenades that you can buy for $2 on Temu. Stronger regulations needed.
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1. ReptileMan ◴[26 Sep 25 21:37 UTC] No.45391271[source]▶
Won't help much. Way too much cheap lithium ion crap with incapsulated batteries is flooding the markets
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2. jeffbee ◴[26 Sep 25 21:40 UTC] No.45391300[source]▶
It does help. It raise the opportunity to discuss it, which is helpful because not everyone is aware that this is a problem, and like many other lease clauses it is there to assign blame in case an exceptionally bad event comes to pass.
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3. dylan604 ◴[26 Sep 25 21:52 UTC] No.45391384[source]▶
Nah, tenants will sign just to move in, and forget about this clause. Just like any tenant that smokes weed disregards no drug clauses. Tenants are going to do what tenants do. Unless you're doing routine walk throughs looking at every single thing in the place that could use a battery, then you'll never know. It's a useless "regulation", and we have plenty of those in the world already.
replies(1): >>45391492 #
4. jeffbee ◴[26 Sep 25 22:06 UTC] No.45391492{3}[source]▶
It's wrong to have an unjustified low opinions of tenants as a class. They are normal, well-meaning, intelligent people like any other.
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5. trebligdivad ◴[26 Sep 25 22:30 UTC] No.45391663[source]▶
It's got to be tricky for people to know what cells they have inside their {phone, toothbrush, bike etc}.
6. jacquesm ◴[26 Sep 25 22:36 UTC] No.45391716[source]▶
Yes, especially wearables and toys. Those are a real problem. One of my kids was gifted a toy that had an embedded Lithium Ion pouch battery of spectacularly bad quality, the pouch had already inflated to the point that it was unsafe to dispose of when he got it. I ended up hand delivering the whole thing to the local disposal site where they have the proper gear to deal with these.
7. quesera ◴[26 Sep 25 22:55 UTC] No.45391856{4}[source]▶

  s/tenants/humans/g
The large majority of tenants do not read their lease paperwork carefully enough for this clause to make a difference.

A large majority of humans don't read EULAs.

A lease clause is useless for liability, because your landlord's insurance won't be able to shake down the tenant anyway.

Someday soon enough, your insurance might require a clause like that. It will still be ignored by tenants though.

8. CamperBob2 ◴[26 Sep 25 23:50 UTC] No.45392203[source]▶
like many other lease clauses it is there to assign blame in case an exceptionally bad event comes to pass

That sounds like a job for the insurance company. You do have insurance, right? Did they have any input on this clause?

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9. jeffbee ◴[27 Sep 25 02:22 UTC] No.45392819{3}[source]▶
They dictated it.
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10. CamperBob2 ◴[27 Sep 25 02:26 UTC] No.45392844{4}[source]▶
Interesting, and ominous. If the place burns down and they find the remains of a "TrustFire" battery in the debris, they might try to refuse coverage, leaving you with the task of recovering damages from the tenant. And good luck with that...
11. tgsovlerkhgsel ◴[27 Sep 25 12:15 UTC] No.45395067{4}[source]▶
And the "intelligent" part makes them realize that you get absolutely nowhere if you try to strictly follow all rules (there's a reason why "work to rule" is an effective sabotage strategy), and that the path of least resistance is to sign and ignore it.
12. dylan604 ◴[27 Sep 25 15:41 UTC] No.45396696{4}[source]▶
It’s not unjustified. I’m a tenant. I don’t read all of the clauses. I’m a normal well meaning intelligent person. Does not change anything about what I said.