its getting convinient to just charge in free time and use away rather than depending on battery life .

By limberwisk on 06.20.19 3:16am

Sounds amazing but i wonder how volatile it is. Wouldn’t fancy my phone exploding .

By Ponk on 06.20.19 4:41am

Yeah. Every time I read about some new outrageously fast charging tech, I can’t help but wonder a) just how safe is this, and b) what does this do to the battery’s lifespan?

By citizencoyote on 06.20.19 9:58am

It is actually quite safe. That is a lesser issue
The way bigger issue is longevity. The battery will most likely face rapid degradation doing this on a daily basis.
Lithium Ion cells charge and discharge characteristics are very similar and I don’t know of a gel based li-ion battery that won’t degrade rapidly. Lithium buildup is heavily accelerated when fast charging.
I have cells here which can be charged up to 6c, that’s 6 times the amperage it holds. The battery in this article can be charged at 4c, that’s 80 watt at 5v.
If you look at the discharge characteristic I can certainly guarantee that the battery will degrade 10-15% after the first 200 cycles and from that on will slightly flatten for another 50-100 (probably another 5%) and from that on will drop rapidly. It will be reaching 70% at probably 350-400 cycles.

DC fast charging is the worst one can do for his or her batteries. I charge my phones wireless over night and only very very rarely use fast charge. My travel phone is 2 years old has 310 cycles and a degradation of 2.1%. The same cell would be at around 75-80% had I used fast charging only.

PS: the same applies to EVs. My Model S has 1200km DC fast charging while having 78000km AC. Battery is still at 99.2% while I have seen Teslas with DC charging at around 100.000km having less than 92% life left.

So, if you don’t care and replace your phone every year, fast chargr the hell out of it. If your going to use it 2 or 3 years….don’t. Use wireless charging at a max of 1.5A and your battery will easily hold 3-4years. A modern cell charged at a max of 1c (the capacity it holds per hour) will easily last 1000 cycles before dropping under 85%

By TheEvilFlint on 06.20.19 2:39pm

perhaps we could tie it to one of those exploding Samsungs, to find out how big a bang for your buck ?

By Onlybighorse on 06.20.19 6:45am

Very cool. It feels like Oppo and Vivo are always competing in that area. Hopefully it does not set your house on fire in the process.

By ksyndicate on 06.20.19 9:00am

They are basically the same as they share the same parent company. Oppo, vivo, OP.

By Testmgl on 06.20.19 4:45pm

The other question is how this affects battery health in the long term.

By popepe on 06.20.19 11:24am