Initail phone battery charge.
 

Just got my new Note 4 and I was wondering how long I should initially charge the battery for. Some websites say 16+ hours, some say as soon as it reaches 100%, that's enough, the 'user manual' doesn't say.

Your thoughts please.

Ta.

Re: Initail phone battery charge.
 

I thought it couldn't charge above 100%. That said, always run the battery down till the phone turns itself off then fully charge back to 100% for a good few times to start with and don't top up the charge for a while.

Re: Initail phone battery charge.
 

Apparently, it continues to 'trickle' charge after 100% but that might be out-dated, thanks Peanut. x

Re: Initail phone battery charge.
 

Never do this, it is bad for the battery and causes excessive wear.

---------- Post added at 21:58 ---------- Previous post was at 21:55 ----------

Doing anything other than a normal charge when you first use it is outdated, but all phones do 'trickle' or 'top-up' charge when the battery is full, only to keep it full.

Leaving it plugged in for long periods of time isn't the best thing in the world, but the 'best' option is so ridiculously laborious that it's not worth it.

Re: Initail phone battery charge.
 

Personally I charge to 100% run until about 40% then charge to 100% and use normally.
Regardless of my battery life I always charge overnight and in the 2 years I have had my s4 I have noticed no determination in the life or longevity of the battery.
Don't charge via USB as the amperage is to low to charge the battery within any amount of time, 2A at home and I use a 4A car charger.
Obviously this is my preference be it right or wrong.

Re: Initail phone battery charge.
 

I agree I wouldn't use a Samsung charger either, I use my kindle's plug usb charger which works a lot better. Been so many probs with Samsung chargers not charging to 100% or too slow to charge.

As for depleting the battery, maybe that's an IOS thing as that's what I've been told. And only do it on initial charge and obviously not recommended to be done often. But it does calibrate the battery gauge on IOS which is recommended to be done every few months. Still if that's wrong, then I'm happy to be corrected, seems everyone says something different unfortunately. But qasdfdsaq cheers for the heads up. :)

Re: Initail phone battery charge.
 

I always thought the full discharge / charge cycle advice was a hangover from older battery technology i.e. Ni-Cd batteries, rather than the Li-ion used today.

Same reason I thought as to why phones originally came uncharged with the advice to charge for 12 - 16 hours before first use, whereas now you normally have a reasonable charge out of the box.

Re: Initail phone battery charge.
 

Yea the full charge/discharge is a throwback to Ni-Cd batteries and it can harm newer lithium batteries.

Re: Initail phone battery charge.
 

Heat is the main killer as well, far better for a laptop to that is always on the mains to remove the battery.

AS mentioned above modern Li-Ion batteries don't suffer from the memory issues the older Ni-Cd do.

Even that only helps a bit as the Li-Ion batteries start to degrade as soon as they are manufactured. As they have a 'shelf life'.


J

Re: Initail phone battery charge.
 

That is indeed correct. Li-ion chemistry doesn't benefit from full cycles and instead suffers excessive wear.

Sorta. Most phones and batteries have always come partially charged. A partial charge of around 40% is the generally accepted optimal state in which to store a rechargeable battery of any type. Only, battery technology has gotten better, reducing internal self-discharge, and distribution networks have gotten faster, so a battery that left the factory at 40% charge has more of it left by the time it gets into your hands.

---------- Post added at 14:18 ---------- Previous post was at 14:15 ----------

Indeed, the 'recommendation' to do a full discharge on iOS is to 'recalibrate' the battery gauge/meter/monitoring circuitry. It does not apply to all platforms, partly because on phones with removable batteries, the calibration circuitry is built into the battery, not the phone.

---------- Post added at 14:22 ---------- Previous post was at 14:18 ----------

Indeed, this is correct too.

I should add, doing an 'operational discharge' - running your phone until it's empty - just wears the battery down without much damage, as long as you charge it reasonably soon after.

Doing a 'full discharge', as in to continue draining it even after your phone dies (e.g. with a battery-discharger, resistor, etc.) can do damage. Draining Li-ion batteries below a certain voltage per cell will permanent physical damage but most batteries have self-protection circuitry that will disconnect the cells at a safe level to stop you from doing this.

However if you drain it until said cut-off, and then don't charge it for some time, internal self-discharge can cause the voltages to drop even further, beyond the safe limit imposed by the circuitry. That's really bad for the battery.

Re: Initail phone battery charge.
 

Charge it to 100%, that's it. 16+ hours referred to older NiCad/NiMH battery chemistries.

Lithium type batteries should be stored at 40%, lead acid at 100%. Batteries like NiCad and NiMH don't care.

Lithium should never be taken below 3.0v, phones will cut off before this point. 0% is considered just above the batteries lowest voltage limit. You should charge it as soon as possible after it turns itself off to prevent damage.

You should occasionally run it down until it turns off to recalibrate the battery meter inside the battery. Once every 1-3 months is plenty, just charge it immediately after.

Re: Initail phone battery charge.
 

Personally, I use a Sony clock radio with iPhone dock for my phone (this is mainly because it has nice speakers that I can use to watch videos in bed though). I use this for any other USB device that needs charging. I've only been using it since the beginning of the year, so can't comment on the long term advantages/disadvantages of it, but it can charge up to six devices at once, even tablets, at full speed. I'd be careful of using it on a multiplug adapter though. If you have a few USB devices plugged in it will supply up to 2.4 amps per USB socket. If you have six, it will supply up to 2 amps per socket. It does charge my iPad noticeably faster than the official charger.

Re: Initail phone battery charge.
 

The phone will only charge at the max rate that it wants anyway. You could give it 10A and it wouldn't charge any quicker than a 2A charger as it just won't accept the power.

Re: Initail phone battery charge.
 

Should be no issue at all on a multiplug.

2.4 amps times six sockets at 5v is still less than 0.5 amps going through the multiplug.

Re: Initail phone battery charge.
 

I bought one of these, it can charge six tablets at once. It detects what is required by the device and won't supply more than required.

http://www.amazon.co.uk/dp/B00PK1MAD...=anker+charger

Not timed if its quicker that the supplied chargers.

I normally charge until full then recharge as required depending on what if doing or where im going.