Charge battery before initial use?

[Mike Dee]

Battery University still seems to be the best source. From their home page:

"Battery University is sponsored by Cadex Electronics Inc., a technology provider specializing in the design and manufacture of advanced battery packs, BMS, chargers and diagnostic devices."

You can't get much more insider than that.All other articles that go into any of the technicalities, including the one you linked to, all refer back to BU. They also seem to regularly update their articles as needed. I'm open to reading other sources, but BU is currently the one and only primary source I know of.

Right....and as I said. This is nothing new, and you yourself know we've literally beat this horses till death till it broke it away from the farm.

It's unrealistic that people will sit there and watch there battery level. Just Imagine having this conversation with a less tech savvy spouse or try it in your kids or parents. People use their devices a lot and there's no way people need to worry this much about battery charging. It comes down to being reasonable about the situation. The only thing I worry about is letting it go to zero. If I bump up my phone during the day sometimes I'll take it off between 80 and 90 but I'm not going agonize over it if it gets to 100 percent.

Yeah....for those that want to get every drop of life out of battery so that it lasts 4 or 5 years, be my guest.

 

[Mike Dee]

This isn't just Battery University, this is universal. All sites relating to lithium ion batteries say the same thing.

Which is don't overnight charge, don't charge everytime to full, don't discharge below 30-40% and generally battery longevity is best when operating between 30/40% and 80/90%.

You say just use your phone and enjoy it. You'll enjoy it for longer if you follow good charging and usage habits.

I know all the supposed rules.... Like I said, there is thread after thread about this. Until the last few years I used to keep my devices 3 or 4 years and never had a degradation problem that impacted my life.

 

[blackhawkhot]

This isn't just Battery University, this is universal. All sites relating to lithium ion batteries say the same thing.

Which is don't overnight charge, don't charge everytime to full, don't discharge below 30-40% and generally battery longevity is best when operating between 30/40% and 80/90%.

You say just use your phone and enjoy it. You'll enjoy it for longer if you follow good charging and usage habits.

30% not the critical threshold and the knee in the discharge curve is closer to 20% after which availible power noticeably decreases.
The controller will not allow a discharge deep enough to destroy the battery; below roughly 5% (the actual value is in volts). That's when the phone auto shuts down.
A better range is roughly 40 to 70% or even shorter charge intervals in that range.
In practice you'll end up going to 80 or 90% many times with fast charging because it goes fast.

https://www.powerelectronics.com/ma...859861/proper-care-extends-liion-battery-life

A better question is should you use the device during the charge cycle especially with fast charging. It's disrupts the power curve current sensing during what is a very specific series of steps.
Does the controller compensate correctly or is it flying blind to the daul usage?
Probably not as the device's current draw can vary greatly even during a one second time span when in use.

 

[bhatech]

I have never worried about battery charging habits or percentage. Heck I don't even have battery percentage displayed to avoid that battery anxiety. I charge as and when pleased through out the day on my wireless chargers. At the end of the day it also goes on a wireless charger on my bed stand. Will it or not degrade the battery, don't care since none of the phones stay with me for long. My wife keeps her phones for at least 2 years and even she doesn't know anything about all this or cares. And her battery does perfectly fine as well and no complaints from her. No time or interest to micro manage charging. Same applies to most consumers.

 

[BlackZeppelin]

Regarding fast charging, I read that it's not fast charging that degrades a battery. It's the charging 90% to 100% and overnight charging especially that is the real culprit.

 

[blackhawkhot]

Regarding fast charging, I read that it's not fast charging that degrades a battery. It's the charging 90% to 100% and overnight charging especially that is the real culprit.

I would agree. Plus the overall amount of charge you're giving it. They seem to like 30% power chunks at a time.
That's not long with a 25 watt fast charger, about 15 minutes. The 45 watt brick must really fly.

 

[mustang7757]

Should I charge the battery before turning on the phone for the first time?

What’s the best thing to do for the S20+ right after taking out of the box ?

Best thing to do , it should have 50 to 70 % out the box set it up then after charge it fully if its at 35 or 40 percent then let it charge up then set up and fully charge .

 

[illdini]

Here's my take...

On my previous phone (S10+), I charged from 15-20% to 100% almost daily, at least half of the time overnight. After about a year, there was no degradation that I noticed. Modern phones have all kinds of hardware & software built in to optimize battery life

Most people on here don't keep their phones long enough for significant battery degradation. If you are holding on to your phone longer than 1.5-2 years, a battery replacement would make more sense then worrying about charging percentages (it may be free, depending on warranty or service plan).

 

[MoreDef]

I think that would solve a lot of problems, if we could simply replace the worm battery with a new one....but it hardly ever works out that way. All three times I asked for a battery replacement using Samsung warranty, I got a replacement unit instead, and those things aren't guaranteed to have new batteries because they're refurbished. If it were as easy as using a battery then switching it out,I wouldn't obsesses over my accubattery stats the way I do =(

 

[Mooncatt]

I think that would solve a lot of problems, if we could simply replace the worm battery with a new one....but it hardly ever works out that way.

This use to be the norm. With replaceable batteries, you didn't have to worry because batteries themselves were cheap and easily replaced. Even better would be if phones only used a small number of universal batteries (like how many devices use AA, AAA, C, AND D's) so the phone is usable even longer. Every phone has its own custom battery, so when that goes, you could be getting old stock to replace it that is already degraded. Universal sizes would mean more stock rotation and fresh made batteries available for more devices.

 

[cardboard60]

I sold a gold face S7E to a friend who is retired.
Told him not to get it below 30%.

He has no internet at home.
He lives on Facebook.

He runs his battery down to 5% all the time.
Then charges it back to 100%.
He's been doing this for over 2 yrs.
Haven't heard him cry about his battery.

He has a battery pack to help charge it when he leaves and comes to town.

If anybody was going to have a problem.
It would be him.

But he is not going to change his ways either.

 

[Mooncatt]

I sold a gold face S7E to a friend who is retired.
Told him not to get it below 30%.

He has no internet at home.
He lives on Facebook.

If all you do is use Facebook, yeah, you won't likely see much degradation. If you game, use the GPS, or take a lot of photos/video, it'll become more apparent due to the added demands of the processor.

 

[cardboard60]

If all you do is year Facebook, yeah, you won't likely see much degradation. If you game, use the GPS, or take a lot of photos/video, it'll become more apparent due to the added demands of the processor.

He sits in a deli at a grocery store, drinking free coffee.
Eating chicken and all.
He lives there with a bunch of other single people to get in out of the cold or hot.
His battery gets run all way down.
He is on YouTube, and watching videos all day.

 

[blackhawkhot]

This use to be the norm. With replaceable batteries, you didn't have to worry because batteries themselves were cheap and easily replaced. Even better would be if phones only used a small number of universal batteries (like how many devices use AA, AAA, C, AND D's) so the phone is usable even longer. Every phone has its own custom battery, so when that goes, you could be getting old stock to replace it that is already degraded. Universal sizes would mean more stock rotation and fresh made batteries available for more devices.

Yeah... that was much more sane.
I never was concerned how I used LIs before.
Run wild, run free etc.
Buried batteries and especially glued together phones are a bum deal at this high price point.
They're call screws... use them Samsang.

 

[Mooncatt]

They're call screws... use them Samsang.

Funny you should mention that, because there's plenty of screws inside the phone, once you get the back glass off.

 

[Morty2264]

I just start using it as normal. Batteries are already broken in by the battery manufacturer, so I'll charge to about 80% and call it good until time to charge again.

I too just start using it as normal, and charge it as needed.

 

[blackhawkhot]

Funny you should mention that, because there's plenty of screws inside the phone, once you get the back glass off.

Lol.
Well there's that
Not liking the use of hot glue especially in expensive dense electronic devices like this.
[Mod redacted]

 

[MoreDef]

Lol.
Well there's that
Not liking the use of hot glue especially in expensive dense electronic devices like this.
[Mod redacted]



when i rocked a Note 4, I always just had a spare battery to pop in when one died. no power bank, no waiting for a charge, just a quick switch. i rode those batteries from 100 to 0 because I could always just buy another one. i really miss those days, and would gladly switch water resistance for the ability to switch out batteries. i mean, who holds their phone under some random shallow depth for half an hour on the regular? how often does your phone fall in water versus how many times have you needed quick and immediate power without waiting time?

 

[blackhawkhot]

Yeah I never put a smartphone into a puddle or toilet in 6 years. Nice to know it won't total it though.
One benny it gives that people don't realize is the water resistance helps keep sweat out too. Even the smallest amount of salt will total a device... only a matter of time.

Of course a dead battery will effectively total it too

 

[Mike Dee]

Yeah I never put a smartphone into a puddle or toilet in 6 years. Nice to know it won't total it though.
One benny it gives that people don't realize is the water resistance helps keep sweat out too. Even the smallest amount of salt will total a device... only a matter of time.

Of course a dead battery will effectively total it too

I've never heard of a phone dying from sweat. Even if sweat droplets landed on your non water resistant device, it would not make its way in without assistance.