fast charging

[fabian bonifacio]

Silly question. But is fast charging your phone all the time bad for the battery? I'm thinking no its not, but I just need to make sure

Posted via the Android Central App

 

[Almeuit]

I personally won't care. I don't keep a phone for 2 years so if it suffers a little from it I'm good.

 

[zorak950]

The real question is heat. Lithium batteries don't like extreme temperatures, so if fast charging creates excess heat that's bad. Otherwise I wouldn't worry about it.

 

[mogelijk]

Silly question. But is fast charging your phone all the time bad for the battery? I'm thinking no its not, but I just need to make sure

Posted via the Android Central App

Not a silly question and, at least with the way it is set up on the 6P, it appears no. As zorak950 states, the question is heat -- typically the faster you charge the more heat that generates, which kills the battery faster. The 6P uses fast charge when the battery is nearly empty; not as much heat is generated while charging a low charge battery. As the battery charges, the charger slows down the rate or charge, to prevent the battery from getting too hot. I will admit, my phone has only been down to about 50% charge, so I likely haven't charged at "full speed" but I haven't noticed the phone getting hot, merely warm.

I do have questions of how fast charging will work in a car in sunlight, I wonder if the phone sitting in the sun combined with a fast charge will make the phone hot -- we'll have to see what happens. But fast charging, at least a room temperatures, does seem to be "tuned" to keep the battery from getting too hot.

 

[fabian bonifacio]

That's great and yeah my phone just gets warm when I use it and its charging and slightly warmer when I game and charge it, but no excessive heat, my nexus 5 would get hotter than this

Posted via the Android Central App

 

[jojoe42]

Battery technology has progressed so much to allow us faster charging. Actually, before fast charging was around most batteries were only limited in terms of input by the connector standard themselves or the charging controller (for example, Nokia charged a Lumia 925 in seconds using a special port/controller with a tesla coil). In theory fast charging should be safe, as most batteries have thermometers that control power and regulate it when the batteries get too hot, certainly before there is any element of damage involved.

An example of this would be the Moto 360 and wireless charging - wireless charging generates loads of heat (inefficient charging). The watch doesn't charge to 100% in a really warm climate, instead hovering around 95% to prevent damage. I presume there is something similar in phones with rapid charging to prevent damage from overheating batteries

Lastly, batteries can actually take in a lot of power. QC 2.0 has such a controller that maximises and controls charging, talking to the battery controller and adjusting power respectively (USB-PD works in a similar way too, with special controllers on the charger and phone)

So in summary, presuming the battery engineers at Huawei weren't stupid, the battery shouldn't be significantly damaged by rapid charging. And even if it is, most batteries wear out after 3-4 years anyways.

Source: my own panicked research after seeing the OP!!!