#Tag · bonfire.cafe

TL;DR Most EV batteries will last longer than the cars they’re in. Battery degradation is at better (meaning: lower) rates than expected. Slow charging is better. Drive EV and don’t worry about your battery.

„Our 2025 analysis of over 22,700 electric vehicles, covering 21 different vehicle models, confirms that overall, modern EV batteries are robust and built to last beyond a typical vehicle’s service life.“

https://www.geotab.com/blog/ev-battery-health/

#GoodNews #EV #Battery

Key Insights

Average degradation rate: The average annual electric vehicle degradation rate is 2.3%.

Power: High-power DC fast charging (>100kW) is the single largest stressor, leading to degradation rates up to twice that of the low power charging group (3.0% vs 1.5% per year).

Climate: Hot climates impose a penalty on battery life, with vehicles operating in hot conditions degrading 0.4% faster per year than those in mild climates.

Utilization: The increase in degradation from high daily use is a measurable but worthwhile trade-off for the gains in fleet productivity and ROI.

State of charge (SOC): For most EV use, there's no need to worry about avoiding fully charging or emptying the battery. Degradation only speeds up when vehicles spend over 80% of their total time at or near-full or nearly empty charge levels. — Key Insights Average degradation rate: The average annual electric vehicle degradation rate is 2.3%. Power: High-power DC fast charging (>100kW) is the single largest stressor, leading to degradation rates up to twice that of the low power charging group (3.0% vs 1.5% per year). Climate: Hot climates impose a penalty on battery life, with vehicles operating in hot conditions degrading 0.4% faster per year than those in mild climates. Utilization: The increase in degradation from high daily use is a measurable but worthwhile trade-off for the gains in fleet productivity and ROI. State of charge (SOC): For most EV use, there's no need to worry about avoiding fully charging or emptying the battery. Degradation only speeds up when vehicles spend over 80% of their total time at or near-full or nearly empty charge levels.

Geotab

EV Battery Health: Key Findings from 22,700 Vehicle Data Analysis | Geotab

Analysis of electric vehicle battery health of 22K+ EVs reveals a 2.3% average battery degradation rate. High-power DC fast charging is the top risk factor.

Jan Wildeboer 😷:krulorange:

@jwildeboer@social.wildeboer.net · 3 days ago

https://www.geotab.com/blog/ev-battery-health/

#GoodNews #EV #Battery

Geotab

EV Battery Health: Key Findings from 22,700 Vehicle Data Analysis | Geotab

Analysis of electric vehicle battery health of 22K+ EVs reveals a 2.3% average battery degradation rate. High-power DC fast charging is the top risk factor.

momo

@momo@floss.social · last week

Finally #battery drain of #syncthing on #android has been fixed:

- https://github.com/researchxxl/syncthing-android/releases
- https://github.com/syncthing/syncthing/pull/10504
- https://github.com/researchxxl/syncthing-android/pull/75

Chronocide

@chronocide@sunny.garden · 2 weeks ago

I replaced the battery for my Dell laptop and was curious to see what was inside. I was vaguely aware you can check how far gone your batteries are by reading out the voltage and to my surprise they read 4.21V, 4.25V and 4.28V. According to my laptop battery information, the total capacity was around 35% (14 Wh).

I know very little about batteries but given all three cells are seemingly fully charged, it is possible there's an issue with the circuit of the battery? I'm just curious to learn more about these batteries as it seems wasteful (and perhaps dangerous?) to recycle these given they're fully charged.

#battery #diy #electronics #laptop

2 media

The inside of a Dell 3-cell 38 Wh lithium ion battery, containing three identical standard lithium ion battery pouches.

Close-up of a LiPo battery. The text on the battery reads: + HS 458455 - 3.85V 220227 22/23 10331 H3.

Chip Butty boosted

TinJar

@tinjar.bsky.social@bsky.brid.gy · 3 weeks ago

www.nytimes.com/2025/12/30/c... 1/ "Solar has risen from almost nothing in 2019 to roughly 10 percent of South Africa’s electricity-generating capacity" #solar #battery #EV #China #Africa #solarpunk #hopepunk

Cheap Solar Is Transforming Li...

https://www.nytimes.com

Cheap Solar Is Transforming Lives and Economies Across Africa

TinJar

@tinjar.bsky.social@bsky.brid.gy · 3 weeks ago

https://www.nytimes.com

Cheap Solar Is Transforming Lives and Economies Across Africa

Hacker News

@h4ckernews@mastodon.social · 3 weeks ago

Tesla's 4680 battery supply chain collapses as partner writes down deal by 99%

https://electrek.co/2025/12/29/tesla-4680-battery-supply-chain-collapses-partner-writes-down-dea/

#HackerNews #Tesla #4680 #battery #supply #chain #collapse #partner #deal #write #down #electric #vehicles

Michael Dexter boosted

Rihards Olups

@richlv@mastodon.social · 3 weeks ago

Are there any reliable aftermarket laptop battery brands at all?

All I have read about lately have lots of reports about bad initial capacity, rapid deterioration, even system instability.

Surely the tech sustainability people here have some advice?

#laptop #battery #sustainability

Rihards Olups

@richlv@mastodon.social · 3 weeks ago

Are there any reliable aftermarket laptop battery brands at all?

All I have read about lately have lots of reports about bad initial capacity, rapid deterioration, even system instability.

Surely the tech sustainability people here have some advice?

#laptop #battery #sustainability

Chip Butty boosted

tjhowse

@tj@howse.social · 4 weeks ago

I switched our energy retailer from Amber Electric to Localvolts, and I've started to play with their pricing API. Fun stuff! I recorded a quick video showing some interesting subtleties in how pricing is different between the AEMO wholesale price, amber and localvolts.

Let me know if you have any questions, and I can make a follow-up video.

As always: This is a solo mastodon instance, so boosts = ❤️

https://youtu.be/mMVBfNC9zLY

#solar #battery #renewable #australia #amberelectric #localvolts

tjhowse

@tj@howse.social · 4 weeks ago

Let me know if you have any questions, and I can make a follow-up video.

As always: This is a solo mastodon instance, so boosts = ❤️

https://youtu.be/mMVBfNC9zLY

#solar #battery #renewable #australia #amberelectric #localvolts

Hacker News

@h4ckernews@mastodon.social · last month

Smartphone Without a Battery (2022)

https://yaky.dev/2022-09-06-smartphone-without-battery/

#HackerNews #Smartphone #Battery #Innovation #Smartphone #Technology #Future #Gadgets #2022