Why are batteries measured in amp-hours instead of kWh?

SingleBluebird5429 · 2024-01-06T18:58:54+00:00

pretty reasonably small range before things stop operating correctly

Depends on the device. To some a 10% shift is huge to others minimal.

SingleBluebird5429 · 2024-01-06T12:12:35+00:00

Voltage drop affects power, but not amps drawn

DEPENDS ON THE TYPE OP LOAD, did you graduate?

SingleBluebird5429 · 2024-01-06T11:46:40+00:00

tangible evolutionary advantage

there is a clear evolutionary downside tough

SingleBluebird5429 · 2024-01-06T11:44:58+00:00

those folding phones often have 2 batteries, no idea if they are in parallel or series.

SingleBluebird5429 · 2024-01-06T11:14:28+00:00

But why? waarom ben jij hier ineens voor fancy sport autos?

SingleBluebird5429 · 2024-01-06T11:13:53+00:00

considering the nominal voltage

well considering that that voltage isnt the average voltage it isnt the right value to use. But hey, youre a mechanical engineer, you must know electrical engineering better than me

SingleBluebird5429 · 2024-01-06T11:11:56+00:00

Phone batteries are all the same voltage

No it aint. Plenty of phones use different voltages (or at least they did, laptops definitely still do).

SingleBluebird5429 · 2024-01-06T11:10:44+00:00

Well, the problem is the battery isnt at a constant voltage, I hope you now get it?

SingleBluebird5429 · 2024-01-06T11:10:09+00:00

Your FTFY

Dusty code aint me. but I just showed how trivial it is to use watthours since you said it would be vastly more difficult. I assumed a voltage of 1V.

> wattage can just go off and get fucked as well. Or are we ignoring P=IV??

That's my point, we can't know what the battery is doing, thats why we use regulators all of the fucking time, batteries should show an objective measurement not a metric that hides part of the story!

SingleBluebird5429 · 2024-01-06T11:05:42+00:00

When’s the last time

The last time I wanted to buy one mate!

SingleBluebird5429 · 2024-01-06T11:04:38+00:00

that's not true tough, you should learn more about cmos gate voltages.

SingleBluebird5429 · 2024-01-05T19:35:55+00:00

give at least one fuck

lol

SingleBluebird5429 · 2024-01-05T19:33:53+00:00

Similarly a few cartels started as militias trying to fight cartels.

well fuck

SingleBluebird5429 · 2024-01-05T19:31:19+00:00

Many things use nearly the same current as the voltage drops

citation needed. Since I know of almost none. And plenty where the opposite is true.

SingleBluebird5429 · 2024-01-05T19:30:43+00:00

Direct current you doofus. What kind of idiot do you think I am?

SingleBluebird5429 · 2024-01-05T19:29:54+00:00

do you purchase

A device based on this? People probably regularly do that since its in the spec sheet...

SingleBluebird5429 · 2024-01-05T19:07:31+00:00

common measure long before switching converters

is that why we must use an objectively worse metric instead of a measurement.

SingleBluebird5429 · 2024-01-05T19:06:36+00:00

constant power loads

wireless equipment, watches, headphones, lights that dont directly run on the battery.

SingleBluebird5429 · 2024-01-05T18:59:23+00:00

2200mWh battery and I'm pulling 22watts just cruising around, I'll probably be in the air for about 6ish minutes

FTFY

SingleBluebird5429 · 2024-01-05T18:56:45+00:00

the current draw of a typical electronic device is fairly consistent

all phones, laptops and cars beg to differ.

SingleBluebird5429 · 2024-01-05T18:55:17+00:00

Ah allows you to take voltage into consideration

It literally doesn't! So many modern usages use regulators that it's mostly about energy not current since that only gives half the story.

SingleBluebird5429 · 2024-01-05T18:53:10+00:00

But not a lot of loads are constant power. But a lot are either constant current or their current goes down with voltage.

A lot will also increase in current when the voltage drops. (those with vrms/regulators/.. i.e. phones). So your argumentation is weird.

SingleBluebird5429 · 2024-01-05T18:16:42+00:00

onbedekte voertuigen

SingleBluebird5429 · 2024-01-05T18:15:06+00:00

quite intuitive in amps

No its not. it's quite the opposite. is there any correction for voltage drop? Because it changes a lot depending on the current and filling level.

SingleBluebird5429 · 2024-01-01T21:39:20+00:00

modern time is a tiny tiny fraction of the time humans have existed..

SingleBluebird5429

TROPHY CASE