Fast charging vs. regular, old cable charging on GS6?

[AC Question]

Fast charging vs. regular, old cable charging on GS6

When I use an older, slower charger for my GS6 overnight, my battery usually lasts all day, unless under HEAVY use of video or music. However, when I use the Fast Charging cord that was boxed with my GS6, it seems to charge to 100% at lightning speed, but then seems to lose power 5 times faster the next day. I may barely use my phone for <10 minutes during the day, and it is down to 10% by 5pm!
So, fast charging = faster battery loss? I'm not seeing an upside to the Fast Charging, at all.
Has anyone else seen a correlation?

 

[the tall guy]

Re: Fast charging vs. regular, old cable charging on GS6

Hi, first I have heard of it, but it could be possible. I don't see how as the phone is getting the same amount of juice from both cables, one of them just takes longer. I'll test it out tonight and see if it makes a difference

 

[AlphaTango414]

Re: Fast charging vs. regular, old cable charging on GS6

I've seen a thread once before stating something like this. I can't tell any difference between when I charge my S6 with the Adaptive Fast Charger or on my Samsung wireless charger.

Note, do you have a pretty strict daily routine?

 

[R-TeknoPrznr-P]

thisn have noticed this in charging my S7 edge as well. but I do not understand why. my only guess and it is only a guess but possibly the heat generated by fast charging somehow affects the battery threshold slightly adversely.