Re:Caterpillar offers phone with built-in FLIR camera
by dotancohen on Wednesday December 07, 2022 @03:45AM
(#33892106)
mAh is perfectly fine for a first-order comparison of two competing batteries, because those two batteries will only compete for a specific workload if they have the same voltage. If I need a phone with a large battery, and all phones are 3.8 volts (yes, I do mean 3.7-4.2) then comparing mAh is useful, (assuming background battery usage of the two devices is similar, which actually isn't often true, but that's a different issue).
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Re:Caterpillar offers phone with built-in FLIR camera
by masklinn on Wednesday December 07, 2022 @06:21AM
(#33893124)
> mAh is perfectly fine for a first-order comparison of two competing batteries
And yet it’s still dumb, because the actual energy density would let you make the exact same comparison anyway, and it would allow for easier comparison with other battery types or contexts.
> If I need a phone with a large battery, and all phones are 3.8 volts (yes, I do mean 3.7-4.2) then comparing mAh is useful
It’s not, there’s a >10% difference between the top and the bottom of the range.
Just give actual energy values, it’s strictly more useful.