Qualcomm: Smartphone Quick Charge v5: 50% in 5 minutes
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yadro
This is a welcomed news although they have been far behind on the chinese companies like Oppo and Vivo.
They already have 125W ready.
Although now i think they should focus more in increasing the battery capacity rather then the charging speed.
Fox2232
sverek
Doesn't fast charge shortens battery lifespan?
Fox2232
schmidtbag
Any bets on when the first fire or exploded battery is going to happen?
sverek
JamesSneed
Embra
Need to get off lithium in general to move forward.
Silva
My main complain about batteries are their capacity, not their charge rate. But their stupid engineers keep thinning with their arses and making thinner phones with tiny batteries, wile focusing on charge times!
Yong
Fox2232
https://www.mpoweruk.com/beginners.htm
C there does not stand for ° of Celsius.
D3M1G0D
Drazen
Numbers do not add up. Phone battery is usually 4.2V but let say 4V for simpler calc. 100W is then 25A. This is 25Ah in 1 hour or 25/12 = 2Ah in 5 min. Of course without any losses!
LiIon charging efficiency is around 90% (depends on battery) and we have charger efficiency also cca 90%. This gives some 1.6Ah in 5 min!
If my math is correct that's 35%.
Also LiIon could be fast charged only in 20 - 70% capacity range. Well marketing layers: 20% to 50% is 0.8Ah + 1.6 = 2.4 what is roughly 50% of 4500.
USB-C support voltages up to 20V what reduces current to 5A but if this 20V comes in contact with 3V data lines... For sure I will forget any Chinese cable.
Silva
sverek
fry178
only reason to push this is because that ppl have phones that wont have power for a whole day.
glad your apple/samsung, has the brightest screen.. 😀
Neo Cyrus
sverek
Fox2232
Backstabak
Can't you just put X battery cells in parallel and charge them all X times faster ? Like the only issue is then the current limit of the cable.