[HTC 10 Questions & Answers] dlads:
Really? Well then can i enlighten you a little about my "Ridiculous statement"

When a device is overcharged, the battery can swell, it will eventually fail, using a charger overnight makes this happen more rapidly.

See here for pictures of devices which have not only swelled but have actually broken the device that they reside in.

https://www.google.co.uk/search?q=b...ved=0ahUKEwju04bLyurMAhVjGsAKHV29CdkQ_AUIBygC

Having worked in a phone shop for around 3 and a half years (not longer work there but I am in the technical industry) i know that the devices in our shop were all live and were constantly plugged in.

Varying times for each device, Sony and Nokia would have been the worst, but even HTC, Samsung, Apple devices suffered the same in the end.

Symptoms:

Touch screen becomes unresponsive

Devices heat up to the point that other components fail

CPUs / GPUs fail

Memory becomes less efficient

Battery life without the constant charge is reduced to less than an hour in some cases (bare in mind that this is after around 8 months of charging) some fail to switch on without a power source.

Devices fail completely and stop functioning resulting in the device needing to be swapped out.

Cameras failing

Hardware keys failing

Pretty much any part of the phone can fail given time whilst being constantly charged.

So if you really think that charging your phone over night is ok for you? Then carry on regardless but please don't make the mistake of thinking that it doesn't do any damage to your phone because it really does.

Lastly if you are going to continue as you are then that's your journey but please don't tell other people about it as if it's something they should do, not only is it untrue but it'll vastly shorten the battery life and overall device life expectancy.

This isn't a hunch i have this is something I've witnessed many times, I've seen a device (ever go to a Mercedes or BMW mechanic and see them with the a device for reading engine readouts?) this device is around 10 inches long, it's black and made with military standards, in a lot of garages these are kept on charge all day long, I've seen one of their batteries which is around the size of your HTC 10, grow in size to around 4 times it's size, the bag which housed the battery had actually ripped 3 inch long screw through the device and i firmly believe that it would have eventually popped, may even have exploded.

Please before you attempt to ridicule someone else's witnessed and substantiated claims, think what you're saying before you start typing.

To the OP:

My advice stands, if you want to get the best out of your battery, it is better not to overcharge your device, your device will try to cap the incoming current and most OEM's will suggest / claim that their device will cut off the power and stop the battery getting juice, however it will still heat up, your battery will still degrade and this is something you should avoid, buy a timer, it costs pennies and will see your battery last longer for a greater period of time, or you can take poor advice and maybe one day you'll be posing a pic here of your nice shiny HTC phone popping it's seams :) Your choice.