Hacker News with Generative AI: Battery Life

Evertop: E-ink IBM XT clone with 100+ hours of battery life (github.com/ericjenott)
Evertop is a portable PC that emulates an IBM XT with an 80186 processor and 1MB RAM. It can run DOS, Minix, and some other old 1980s operating systems. It also runs Windows up to version 3.0. Because it's based on a powerful yet very low power microcontroller, uses an e-ink display, packs two 10,000mAh batteries, and implements extreme power saving measures, it can run for hundreds or even thousands of hours on a single charge.

Retro Computing, Hardware, E-Ink, Battery Life, Operating Systems

557 points by harryvederci 4 days ago | 190 comments

Watts Should Replace MAh as Essential Spec for Mobile Devices (theverge.com)
Forget mAh, and stop sweating megahertz. The watt reigns supreme, if only companies would share it with us.

Mobile Devices, Battery Life, Technology

8 points by m463 23 days ago | 6 comments

Google will gradually reduce Pixel 9a battery capacity on purpose as it ages (androidpolice.com)

Google, Pixel 9a, Battery Life, Software Updates, Planned Obsolescence

7 points by josephcsible 24 days ago | 0 comments

Hyundai IONIQ 5 drove 360k miles on its original battery (electrek.co)
This white Hyundai IONIQ 5 is single-handedly rewriting the rules on EV longevity by driving over 360,000 miles on its original battery.

Electric Vehicles, Hyundai, Battery Life, Longevity

10 points by sleepyguy 25 days ago | 2 comments

C1 modem breaks no speed records, but is power efficient (appleinsider.com)
The first real-world tests of Apple's C1 modem in the iPhone 16e say that has comparable performance to previous 5G chips, but achieves that with significantly less battery power.

Mobile Technology, Apple, iPhone, 5G, Battery Life

53 points by Tomte 56 days ago | 41 comments

Google Pixel 4a's ruinous "Battery Performance" update is a bewildering mess (arstechnica.com)
Google's "Pixel 4a Battery Performance Program," announced in early January, told owners that an automatic update would, for some "Impacted Devices," reduce their battery's runtime and charging performance.

Google Pixel, Mobile Phones, Software Updates, Battery Life

12 points by naomiclarkson 83 days ago | 1 comments

Google Pixel 4a update to "improve stability" of the battery cuts life in half (liliputing.com)
The Google Pixel 4a is a mid-range smartphone that was released in 2020 at a time when Google was only promising to deliver software and security updates for three years. But earlier this month Google rolled out an unscheduled update that the company says was required “to improve the stability” of battery performance on some models.

Software Updates, Smartphones, Google, Battery Life

62 points by nfriedly 85 days ago | 2 comments

Microsoft reveals new Surface Pro laptops with up to 22 hours of battery life (laptopmag.com)

Microsoft, Laptops, Battery Life, Hardware

24 points by thunderbong 86 days ago | 16 comments

Is rapid charging bad for your car? Learn about battery C-Rate [video] (foxev.io)
Yes, Rapid charging generates more heat and stress on your battery, leading to faster degradation, whereas home charging at slower rates preserves battery health and extends its lifespan. Let's learn about the C-Rate to find a measure for this:

Electric Vehicles, Battery Life, Technology, Sustainability

3 points by janosch_123 109 days ago | 6 comments

Electric cars could last much longer than you think (wired.com)
EVs are practically worthless secondhand, because the huge batteries will need expensive replacement after a few years. At least, that’s what some articles or forum discussions in recent years may lead you to believe. However, while secondhand prices for EVs have been plummeting, evidence is building that their batteries could last longer than the eight-year warranties most come with.

Electric Vehicles, Battery Life, Technology, Sustainability

73 points by bilsbie 122 days ago | 165 comments

We saved battery in our ESP32 WiFi circuits (TCP vs UDP) (khalsalabs.com)
In the early development stages of PetDrifts, we faced significant challenges with our MVP, which included a custom PCB equipped with an ESP32 C3 mini, sensor, and a Li-ion battery. One of the major issues was the rapid draining of the battery, a critical problem in our IoT device design

IoT, Hardware, Battery Life, ESP32, Networking

43 points by harry247 127 days ago | 25 comments

New study shows: EV batteries last much longer than expected (electrive.com)
While diesel cars run and run, electric car batteries quickly break down and turn the expensive new car into a complete financial loss - statements like these can be found on social media repeatedly. P3 now analysed data from more than 7,000 electric cars, providing insights into real battery ageing. And the field data paints a whole different picture.

Electric Vehicles, Battery Life, Research, Data Analysis

65 points by kungfudoi 152 days ago | 70 comments

Battery charge limiter for Apple Silicon MacBook devices (github.com/actuallymentor)
This tool makes it possible to keep a chronically plugged in Apple Silicon Macbook at 80% battery, since that will prolong the longevity of the battery. It is free and open-source and will remain that way.

Apple Silicon, Battery Life, Software, Open Source

6 points by starbugs 195 days ago | 5 comments

Apple's 80% charging limit for iPhone: How much did it help after a year? (macrumors.com)
With the iPhone 15 models that came out last year, Apple added an opt-in battery setting that limits maximum charge to 80 percent. The idea is that never charging the iPhone above 80 percent will increase battery longevity, so I kept my ‌iPhone‌ at that 80 percent limit from September 2023 to now, with no cheating.

Battery Life, Apple, iPhone, Technology, Reviews

45 points by Tomte 213 days ago | 63 comments

Everyone says Chrome devastates Mac battery life, but does it? 36 hour test (birchtree.me)
Long time Birchtree readers know I love data, and love data even more when I can throw it into a graph. I’m also a fan of testing things that everyone generally agrees are true, but no one seems to have any data to back up.

Battery Life, Chrome, Mac, Testing, Data Analysis

87 points by havaloc 223 days ago | 105 comments

Intel Core Ultra 200V promises Arm battery life without compatibility issues (arstechnica.com)

Processors, Battery Life, Arm Architecture, Performance

42 points by rbanffy 234 days ago | 36 comments

Intel Launches Lunar Lake: claims Arm-beating battery life (tomshardware.com)

Intel, Processors, Battery Life, Laptops

15 points by dingi 235 days ago | 3 comments

Pilet: A modular tablet-console based on pi5 with 7-hour battery life (soulscircuit.com)

Hardware, Raspberry Pi, Embedded Systems, Battery Life

29 points by ianrahman 246 days ago | 7 comments

Charge limiting to extend lithium ion battery life (computer.gripe)