why unplug when battery reaches 100%?

[ingear]

see this

PompAdapter - Double Your Charging Speed Using Same Cables iOS , Android
https://igg.me/at/PompAdapter/x/13804399

but why unplug?

and ideally battery should be charged to 90% or so .. and recharged when at 60%

 

[ElFenix]

i would have to assume that the electronics that control these things are smart enough to not ruin your battery when you don't unplug if because you're asleep overnight. just like your battery really isn't at 0% when your phone says it's at 0%. it's a safe margin above the actual 0% that would ruin your battery.

 

[ericlp]

Dunno about these posts. I have a S6 Wireless charging ... keep it on the charger all the time, when I'm not using it, the light goes from red to green and the phone (when charging) stays red and once it gets to 100% it goes off. So I would assume my s6, that is about a year old is monitoring and switching to float mode after it's charged up.

I've been doing this from day one and my charger is a third party charger. Battery seems to be holding a charge just like when I bought it. Maybe this might be true with older hardware, but I suspect newer devices have better battery monitoring built in. Since, samsung is using qualcomm quickcharge feature.

 

[JAG87]

It has been said about a million times and people are still in denial about this subject. It has nothing to do with "overcharging".

It has to do with running off AC power and not allowing your battery's voltage to come down. Every hour your battery spends at or near 100% charge is detrimental. Ideally you want to always keep a lithium ion battery between 20 and 80% charge, but if that is not feasible then you should make sure your battery spends the least amount of time possible >90% charge. Plugging your phone in on a fast charger at 10 pm means that 2 hours later you are at 100%, and if you wake up at 7am your battery will be sitting at 100% for 6-7 hours. That's the problem, not overcharging. The longer your battery spends at it's maximum/minimum voltage, the more it gets damaged.

Same goes with temperature. Keep your battery between 10 and 30C and you won't damage it. If that's not feasible then make sure that any extreme temperatures do not last any significant amount of time. The longer you spend at extreme temperatures, the more your battery will get damaged.

 

[ericlp]

I dunno..... I would think samsung and or apple or google nexus devices would have temp sensors and optimal charge points. Like I said, I've left my phone on the charger for HOURS Days...Sometimes weeks... No problem. Phone battery still maintains about 2-3 days for a charge just like it was new. Some I'm gonna go off on a limb and say that the device isn't overcharging or undercharging or destroying my battery.

You know what does destroy the battery is charge cycles, and how low you take your phone down. If it goes down to Zero charge and you continuously flat line a battery, yes lithium is better a lot better than lead acid batts, but still the same charge cycle rules hold true. Anyway, to more it goes to zero the more you are killing your battery. If you charge when the battery still has 20-40% life to more use you will probably get from it.

Cheers! Do what you want tho!

 

[Oyeve]

This topic is about as useless and over-debated as speaker burn-in.

 

[olds]

Unplugging at 100% is unreachable.
I need my phone at 100% when I wake up in the morning.
I plug it in by the bed when I go to sleep and use it for an alarm. It probably at 100% an hour or two after plugging in and stays there for 5 hours or so. It's the cost of doing business.

 

[sweenish]

I feel like one person is discussing pure capacity charge, and other is discussing what your phone shows you.

In other words, one person isn't arguing with all the facts. The hint is that battery micro-management is handled by the phone.

 

[Thump553]

If for nothing else-the wall charger keeps sucking down power and your money so long as it is plugged in.

 

[JimKiler]

This topic is about as useless and over-debated as speaker burn-in.

Agreed, there is a lot of junk science about how to properly maximize your lithium ion battery. So i will read the advice in this thread with lots of grains of salt.

 

[JimKiler]

If for nothing else-the wall charger keeps sucking down power and your money so long as it is plugged in.

true, that will cost money to keep it charged when not needed. This is why i plug my phone into my car or work PC, both are already sucking energy therefore it is free to charge my phone on them.

 

[RockinZ28]

Unplugging at 100% is unreachable.
I need my phone at 100% when I wake up in the morning.
I plug it in by the bed when I go to sleep and use it for an alarm. It probably at 100% an hour or two after plugging in and stays there for 5 hours or so. It's the cost of doing business.

I suppose you could get one of those digital plug timers if we really cared. Set it to output power two hours before alarm, shut off at alarm time. Assuming you trust the phone not to die sometime during the night.

My NoteIV battery was shot after less than a year, but that phone was crap anyway so sold it. Did leave it plugged in all the time as it was my Hotspot for home internet. Love my 6P, but hope the battery lasts 2+ years.