It’s a collaborative site.
I like it, though there wasn’t a single one of the false facts that I was taught in schools.
“Dinosaurs shed their skin all at once like snakes”
“Girls are naturally not as good at math as boys”
I don’t mean to be rude, but If this was taught in your school, everyone around you is probably a moron.
Yeah I think that the “you have to discharge your batteries entirely before charging them” would be a better fit, even though it wasn’t false at the time, but the technology changed
You still occasionally should, let it go all the way to dead, but for calibration reasons instead of safety reasons
That was the original reason. Ni-cad batteries develop a “memory” if they aren’t fully discharged loose capacity.
With modern Lithium ion batteries its because as their capacity decreases over time the BMS can’t always keep up and recover the 100% point unless you’re occasionally draining it all the way. This can result in someone charging their battery to say 97% and leaving it for hours to reach a 100% it will never reach. This is potentially unsafe as it heats up the battery.
Edit: Autocorrupt beansed up my comment
I was always told to always leave it charged from 20% to 80% and draining it to 0% was a bad thing.
This is correct with unmanaged batteries. Batteries with a BMS however will never get below whatever voltage is set as their 0% unless allowed to sit at 0% for long enough that e n t r o p y occurs and the charge slowly dissipates over time. This will happen even with a fully charged battery left to its own devices (ba dum tss) for too long.
The point of the BMS is to manage the health of the potentially dangerous lithium batteries, and as long as they are used within spec it should keep voltages from getting so low the batteries enter a state of deep discharge, as well as prevent overcharging due to imbalanced charging rates or other similar issues.
Used is the important word here. A battery must be used to maintain it’s health. A battery must also not be abused to maintain its health.
Now none of that touches on what you said, but was important background for this to make sense: The BMS will report to you whatever values it deems safe charging and Discharging limits based on factors like internal resistance and temperature. As a result 20-80% of an unmanaged battery is close to 0-100% of a managed one in new condition because the BMS will cut power before unsafe discharge limits are reached, and will stop charging to prevent overcharge once those limits are reached.
Fruit and vegetables being separate categories: Fruits are actually a type of vegetable. Additionally cucumbers are melons.
Cyan being a light blue: It is actually 50% green.
Simple machines are fundamental: They completely ignore compliant mechanisms and aren’t atomic. Actually atomic mechanisms would be defined by the type of force, the shape, and the compliance.
The only form of Socialism is Marxism and Communism and Capitalism means markets: Look up Mutualism or Syndicalism.
Basically everything with pop psychology.
I am sure there are more, but these were just top of my head.
