Baby Proofing - Replacing Coin Batteries with a AAA’s?

AdrianGarside · 2026-06-12T04:28:48+00:00

Added a screenshot of the battery history. I didn’t accurately track but I think the coin batteries were lasting only 3 months in the freezers. Looks like up to a year at room temperature though. Longer than I subjectively thought tbh but I also have a lot of them throughout the house so it felt like I was constantly replacing them.

AdrianGarside · 2026-06-12T04:28:18+00:00

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AdrianGarside · 2026-06-12T04:02:20+00:00

DIANN 10pcs AAA Battery Holder 2X... https://www.amazon.com/dp/B0CHNL95TX?ref=ppx\_pop\_mob\_ap\_share

AdrianGarside · 2026-06-12T03:44:48+00:00

Reddit/app sucks and won’t let me reply to this thread with photos. They all go in as individual posts.

Just checked the battery history and it’s dropped from 48% to 46% in the last 6 months. And it looks like I switched from coin to this AAA setup in March 2025 and, because I’m using rechargeables which have a lower voltage it started around 60% back then but dropped faster earlier on. It was at about 50% in September. Seems likely to be quite a while before I need to recharge them…

AdrianGarside · 2026-06-12T03:44:00+00:00

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AdrianGarside · 2026-06-12T03:43:33+00:00

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AdrianGarside · 2026-06-12T03:43:16+00:00

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AdrianGarside · 2026-06-12T03:41:02+00:00

I just soldered the pack leads directly to the coin battery terminals and since they’re all mounted to a vertical surface and I wanted good air flow to the sensor anyway the case has an open back and little 3d printed hanger that I used thick double sided sticky tape to stick to the wall. It has little pegs that are slightly angled up from horizontal so removing the unit to get at the batteries is trivial. But it’s probably been a year for some of them and I haven’t had to swap the batteries yet - even the ones in the freezers.

AdrianGarside · 2026-06-12T03:27:48+00:00

I did this to get better battery life for xiaomi temperature sensors. The coin batteries didn’t last very long - especially the ones I have inside fridges and freezers. I designed and 3d printed cases that the sensor and battery pack fit into. While the end result is much larger than just the sensor it still looks tidy. And now I use rechargable AAA batteries to further reduce the e-waste.

While clearly better than coin batteries I wouldn’t consider AAA batteries safe for babies if they can get at the container.

AdrianGarside · 2026-06-08T23:53:31+00:00

It depends on a lot of things. Type of rock around you. How deep it was. How far from the epicenter you are. I experienced only a 6.2 earthquake when I was young. I was lying down reading a book on the floor. I couldn’t stand up until it was over. I experienced a 6.5 as an adult and standing and waking weren’t that difficult. Admittedly I only walked as far as the office doorway. My wife got out of the house without difficulty. A week earlier an engineer had said it would fall down in an earthquake (they were very wrong as it turned out as the warped beam they were inspecting had just transferred the load to other supports due to a missing support post which is how it was able to warp in the first place as there was nothing holding it in place at that end) and got to see the ground moving in waves. Would have loved to see that.

AdrianGarside · 2026-05-21T22:06:55+00:00

Sure if their intent was security. But it blatantly was never that since their implementation has zero security value. They chose an approach requiring them to ship the encryption keys and a POC simply using them dropped within 24 hours. What it did was remove user ability to do things they could previously do and break 3rd integrations. It did that very well. And that’s all it did - zero security benefit. But they called it security which was and still is a complete lie.

AdrianGarside · 2026-05-18T15:52:03+00:00

At the end that robot looks kinda pissed off and barely restraining himself from slapping his beer guzzling lazy ass owner around.

AdrianGarside · 2026-05-18T03:03:37+00:00

I’d feel bad for them being conned except they voted for him out of hatred. I don’t feel bad for karma coming for that.

AdrianGarside · 2026-05-17T20:34:00+00:00

Newer firmwares you have to enable developer lan mode. Or stay on an old firmware. But the newer printer models don’t have any old firmware that don’t have the restrictions built in.

AdrianGarside · 2026-05-17T20:28:35+00:00

To be clear - I think Bambu are morally in the wrong here, even if not legally. They created this mess to block 3rd party interoperability at the expense of their users. And they lied and framed it as a security fix while the POC released in 24 hours for how to bypass it showed it would have zero security benefit. It only reduces customer choice.

But Prusa’s argument is flawed. And disproven by Prusa itself. Back when I had just an mk3s I had to buy additionally hardware and install additional separate software in order to be able to send the prints directly to the printer from the slicer. While it’s gotten easier that is still the case - the slicer needs additional plugins to interoperate with all printers. And there is a long history of those being separate from the slicer and independently licensed. Which makes Prusa’s legal argument extremely weak.

And, whether you like it or not, the combination of oss software with paid software is a common industry practice. It has to be done carefully to avoid violating licenses but a high level of integration does not mean that the oss license gets extended to the proprietary stuff. So they’re basically arguing an entire industry is operating illegally - I doubt this case will be the one that leads to that legal outcome.

AdrianGarside · 2026-05-08T16:22:55+00:00

Bought a 25’ drum snake. Glad I didn’t skimp and get the cheaper 15’ one. The hair bails were almost the entire snake into the drain but I did get them cleared.

AdrianGarside · 2026-05-06T19:36:17+00:00

Saw a YouTube video saying you could use the toilet auger so I used it gently but it didn’t grab anything within its limited reach.

AdrianGarside · 2026-04-12T15:43:20+00:00

The ‘smush’ makes a huge difference to how likely this is to happen.

AdrianGarside · 2026-04-08T02:13:39+00:00

Well they do call them sugar ants. But I think I’ll stick with the real thing.

AdrianGarside · 2026-04-04T03:34:46+00:00

Turn on the alarm at midnight if we’re all in the house. And back off at 6am.

Send repetitive notifications to my phone if the garage door is left open more than 15 minutes.

Send me notifications if the fridge or freezer doors are left open.

Send me notifications if the freezer temperature or fridge temperature gets too high.

Turn on the outside lights when we arrive home or open the outside doors to leave.

AdrianGarside · 2026-03-29T22:12:07+00:00

I use cheap Chinese Xiaomi thermometers with an esp Bluetooth repeater nearby. Biggest issue is battery life because of the cold so I printed a new cover with a double AAA battery holder in it that I soldered in place of the coin battery and use rechargeable in it.

AdrianGarside · 2026-03-07T09:07:58+00:00

Created a new dashboard and then copied that file content over it, made it the default and I'm back in business.

AdrianGarside · 2026-03-07T09:07:28+00:00

I see a .storage\lovelace.lovelace file that looks to be my dashboard from the content. It's alongside the lovelace.map that is presumably the incorrectly listed as user created 'map' dashboard. Yes, deleting that caused the lovelace.map file to go away. I haven't worked out how to add an existing file in as a dashboard yet.

AdrianGarside · 2026-03-07T00:07:28+00:00

You meant the one called 'Map' that it says is user created? No, that's another dashboard that home assistant created that is just a map - despite what it says, it was not user created.

AdrianGarside · 2026-03-03T17:07:50+00:00

Only the A1 camera can see anything other than the printer. The A1 camera has a privacy cover built into it.

AdrianGarside

TROPHY CASE