Hacker News new | ask | show | jobs
by in_cahoots 43 days ago
If the bill defines a charge cycle as 100->0->100 then the restriction should be more meaningful right? Manufacturers would have to ship a larger battery and cap its capacity to get the same lifespan.
1 comments

100% and 0% are essentially arbitrary, though. That’s the point. What is 100% for a battery? 4.1V? 4.4V? What’s 0%? 3.0V? 2.5V? Lower?
And to add to the confusion, the display reads 100% of the current capacity. 100% of 80%.
Irrelevant for state of charge, though. My point is you can define 0 and 100 as specific voltages and arbitrarily make the capacity larger or smaller. LG was notorious for having the top level charge be unusually high for the time (4.45V or something) which meant they had amazing battery life when new, but quickly fell off a cliff as they aged rapidly.