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@skprog both. I have this rare mental condition that makes me like humanity.
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@infinite-lifes my god that sounds horrible. I hope i never catch this human sympathy virus.
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@Froot You would have to measure it in watt hours, or joules or something equivalent, watts wouldn't tell you anything. mAh makes sense usually.
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@Froot Comparing batteries of different voltages usually is a waste of time since your circuit will require a certain voltage, so once you know that, it narrows your search down to batteries of a single voltage.
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Stop being asinine.
The unit of measurement for battery life is mAh. So while yes it is accurate to say “4.0Ah”, it is not useful in its intended context, which is comparing to other batteries.
Yes metric unit conversions are easy. Easy is not the same as free. Customers want numbers that can be directly compared to each other, and using different units does not satisfy that need. -
@cafecortado er, no. That’s an abbreviation of the number. The units are still mAh.
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@Condor A fellow electronics enthusiasts! I see you are a man of culture as well. I agree. Its obviously for marketing. Larger numbers make it look like a better product.
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@filthyranter They're usually measured in bps because the physical layers below and things such as traffic shaping and policing are specified in bps. The bit is the smallest atomic unit with digital communications, so it makes sense to not have to deal with floating point numbers for configuration and for SLAs etc.
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@Condor Serial connections are just another form of physical layer, you're right about the symbol rate but being different, but that doesn't change the fact that if we're at the MAC layer or above we tend to specify things in bps because that's the most atomic unit and everything from the extremely low bandwidth to the Tbps links all use bps for configuration. It's not that it's a marketing scam like some would lead you to believe.
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@Condor baud rate and bit rate were always separate btw, we can represent a bit with a symbol, and that symbol can encode things like error detection and correction.
Related Rants
...arduino
What the hell is "4k mAh battery"? Come on guys, you know what that little 'm' means, please tell me you do.
You wouldn't say "4k miligrams". You wouldn't say "4k milliseconds". You wouldn't say "4k milliliters". So don't use "4k miliampere hours". It's dumb.
Just to be sure - everyone, repeat with me:
👏 0.000004 👏 MAh 👏 eqals
👏 0.004👏 kAh 👏 eqals
👏 4 👏 Ah 👏 eqals
👏 4000 👏 mAh 👏 eqals
👏 4000000 👏 nAh 👏
Thank for giving me 5k ms of your attention.
rant
metric system
useless units
please stop