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Huawei Battery Upgrade Means Dramatically Faster Charging For Mobile Devices
Computerworld reports a welcome development for everyone with battery powered portable electronics, which might just have applications further afield, too (like electric cars): Huawei has developed a battery based on conventional lithium-ion chemistry but tweaked with the addition of graphite atoms bonded to the anode. From the article: That change means faster charging but not at the expense of usage life or a sacrifice in the amount of energy that can be stored in each battery, [the company] said.
It was developed by Huawei research and development subsidiary Watt Lab and the company showed off two prototypes in videos posted online.
One of the two batteries has a capacity of 3,000mAh (milliampere hours) -- about equivalent to the batteries in modern smartphones -- and can be charged to 48 percent of capacity in five minutes. The second has a much smaller capacity of 600mAh but reaches 68 percent of capacity in just two minutes.
Even though it's in the original FA, I wouldn't expect a competent editor here to let "graphite atoms" by. Sheesh.
And the worms ate into his brain.
No. Fucksakes. Amp-hours is NOT a unit of energy capacity. It is meaningless without being told the nominal voltage. Ok, so if it's a single (series of) lithium cells it's gonna be 3.7V, but why be ambiguous? The unit we're after Watt-hours, right? Do you pay your electricity bill by fucking Amp-hours? Of course not, that's nonsense.
When you see the shiny new Anker portable battery pack on amazon rated at 20000mAh for charging your fondle-slab so you can keep burning through the next 10,000 losers on tindr while you wait for the bus, maybe you're aware your device is charged on 5V and you might think you're getting 100Wh for your money. But you ain't, are ya? No, they mean 3.7V x 20Ah = 74Wh.
Ok just one more beer and we can forget about this ugly outburst.