this post was submitted on 07 Jan 2025
33 points (100.0% liked)
Hardware
2494 readers
42 users here now
All things related to technology hardware, with a focus on computing hardware.
Rules (Click to Expand):
-
Follow the Lemmy.world Rules - https://mastodon.world/about
-
Be kind. No bullying, harassment, racism, sexism etc. against other users.
-
No Spam, illegal content, or NSFW content.
-
Please stay on topic, adjacent topics (e.g. software) are fine if they are strongly relevant to technology hardware. Another example would be business news for hardware-focused companies.
-
Please try and post original sources when possible (as opposed to summaries).
-
If posting an archived version of the article, please include a URL link to the original article in the body of the post.
Some other hardware communities across Lemmy:
- Augmented Reality - !augmented_reality@lemmy.world
- Gaming Laptops - !gaminglaptops@lemmy.world
- Laptops - !laptops@lemmy.world
- Linux Hardware - !linuxhardware@programming.dev
- Mechanical Keyboards - !mechanical_keyboards@programming.dev
- Microcontrollers - !microcontrollers@lemux.minnix.dev
- Monitors - !monitors@piefed.social
- Raspberry Pi - !raspberry_pi@programming.dev
- Retro Computing - !retrocomputing@lemmy.sdf.org
- Single Board Computers - !sbcs@lemux.minnix.dev
- Virtual Reality - !virtualreality@lemmy.world
Icon by "icon lauk" under CC BY 3.0
founded 2 years ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
The supercapacitor is not special here because of its fast (dis)charge, considering the 45 day runtime that is the opposite of fast. I am also amazed that they got the leakage so low. Anyway, the point is going to be the tiny size (where Li sucks) and easier handling completely discharged as well as no aging.
Logitech has/had a solar keyboard a while back that just ran on just a CR2032 (whatever the rechargeable kind is) and even without extra light it would last a long time on battery. Without a backlight keyboards basically don't use any power so a 2032 was plenty for it.
https://www.amazon.com/Logitech-K750-Wireless-Solar-Keyboard/dp/B005L38VRU
I've had one of these for a many years, and I really like it, although finding a replacement for the single ML2032 battery was quite a headache the first time it died.
It turns out that a popular mod for these was to disconnect the panels and replace the ML2032 for a regular old non-rechargeable CR2032. The keyboard uses so little power that it lasts several months with a single battery.
It does make you wonder what was the point of the solar panels in the first place. If you replaced them with single use batteries they'd actually last longer than the entire lifespan of the rechargeable battery 😂
Mine is about 15 years old, and it came with a dead battery. I just have to buy a new rechargeable one, and it's still working with that, so I have a 15 years old battery inside. I bought a 2-pack back than, the other one is still somewhere here in a box unopened. So it's not "several months" I'm close to "several decades" at this point.