Comment on Realme’s 320W fast charging can fully charge a smartphone in four and a half minutes
cmnybo@discuss.tchncs.de 5 weeks agoThat’s a 13C charge rate, a normal lithium battery would get very hot and puff up, possibly even catching on fire.
To safely charge at that rate, you need a battery that is specifically designed for it. High speed charging will probably be a lot more common when phones start using solid state batteries though.
xor@infosec.pub 5 weeks ago
i’m hoping for super-capacitors, personally
cmnybo@discuss.tchncs.de 5 weeks ago
Super capacitors are great for when high charge or discharge rates are needed. They can be charged in seconds. Unfortunately the energy density is significantly worse than batteries and they self discharge in days.
If a typical phone was super capacitor powered, it would weight 5kg and be bigger than a 1980’s Motorola.
xor@infosec.pub 5 weeks ago
well i’m hoping they get better