Android Is wireless charging a good slow charging option for better battery longevity?

R

roadrash99

Level F
Back when I had a lot of old chargers I would use the 5-10 W ones for overnight charging, believing it's slightly better for the battery than the 60+ watts that is common now. But now, I have thrown away all old electronic stuff in Diwali cleanup (bad move).

I'm thinking of getting a 15W wireless charger for overnight charging but I'm getting mixed information as to whether it will produce more or less heat than the fast wired charging. The general recommendation seems to be that wireless will create more heat than wired (due to lower efficiency) but that is for same wattage.

Will 15W wireless charging create less heat than 68W fast wired charging? If you guys have any experiences with this, please share.
 
Nothing to back my point other than some personal experience.

All these batteries will degrade for sure and the talks about fast charging and wireless charging destroy batteries that all comes down to manufacturers battery quality.


At most you can do is charge them till 80% . This option seems to be proven option of battery longevity.
Rest is all upto luck and quality.
This is why many companies are giving these options.

Just my 2 cent.
 
With wireless charging, you have heat from the connected charger to convert AC to DC. The charging pad converts DC to AC which generates heat. The induction coil on the phone receives the inductive current and converts it to DC, again generating heat.

The inefficiency of it all makes my head spin. However, you still have multiple heat sources close to the phone than you would with a wired charger. Most certified chargers try to control the temperature but the inefficiency means you are exposing the battery to higher heat for a much longer time compared to a wired charger.

A low wattage wired charger is definitely the best option in terms of heat. A fast charger might generate heat up to the highest limit but then it also disconnects much quicker than a wireless charger which keeps heat stressing the battery longer.
 
Use a slow charger. 5V2A. Or QC 3.0 (18W) for balanced speed and longevity.

Fast charging degrades battery because of the heat it produces.

With wireless charging, you are getting all the adverse effects of fast charging, minus the fast charging.
(I call it a reverse-Blade situation).


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