…as soon as my phone is a 100% charged, it asks me to remove it from the charger, which I do. I do that with my laptop as well. I’ve heard that overcharging your devices is detrimental for their “wellbeing” but I do not know the reason. I need to explain it to my 9 year old so can someone explain the reason to me, in clear and simple language please.
(Lucid, please do not attempt to wreck my mind :/).
Re: OK silly question but...
Depends on battery management system (BMS) built into your device. some Hms is smart. It cuts off charge once battery fully charged. Li ion batteries typicallly have upper voltage limit of 4.1 or 4.2 volts. Once that voltage reached the charge current decreases. Once it goes below certain limit charger should shut off automatically.
Even if it doesn't the charge current should. Reach very very low values < c/50 where is is capacity.
So I don't think any damage if u don't take device off charger. But if manual instructs take it off charger.
Tryndhun nahin lend kaxkya?
Re: OK silly question but...
For most rechargeable batteries the best way to use them is to keep charging them up to 100% and then discharging them down as low as possible. If you keep them charged up all the time it would forget what it to have low power. Just like how we fast in Ramadan :) (phones actually have battery statistics to keep track of this).
In the olden days (3-4 yrs ago :D ) these power cut-off mechanisms were either not put in place or didn't always work. To give you an example a friend (Khan) and I bought cordless phones at the same time. I would always take mine off the cradle when it was charged (2-3 hrs per day) where as Khan would always leave the phone on the charge when not in use. The result is that I still have my phone which holds a charge for most of the day and Khan's phone crapped out last year.
Re: OK silly question but...
Depends on battery management system (BMS) built into your device. some Hms is smart. It cuts off charge once battery fully charged. Li ion batteries typicallly have upper voltage limit of 4.1 or 4.2 volts. Once that voltage reached the charge current decreases. Once it goes below certain limit charger should shut off automatically.
Even if it doesn't the charge current should. Reach very very low values < c/50 where is is capacity.
So I don't think any damage if u don't take device off charger. But if manual instructs take it off charger.
Tryndhun nahin lend kaxkya?
Sorry, didn't get this last statement.
For most rechargeable batteries the best way to use them is to keep charging them up to 100% and then discharging them down as low as possible. If you keep them charged up all the time it would forget what it to have low power. Just like how we fast in Ramadan :) (phones actually have battery statistics to keep track of this).
In the olden days (3-4 yrs ago :D ) these power cut-off mechanisms were either not put in place or didn't always work. To give you an example a friend (Khan) and I bought cordless phones at the same time. I would always take mine off the cradle when it was charged (2-3 hrs per day) where as Khan would always leave the phone on the charge when not in use. The result is that I still have my phone which holds a charge for most of the day and Khan's phone crapped out last year.
Oh, excellent explanation. I totally get it now.
I'm going to tell my daughter exactly what I tell her about everything she owns: Treat it like a humin. It has feelings too.
Re: OK silly question but...
Sorry, didn't get this last statement.
Teynshun nahin lene ka kya he tried to say. This autocorrect feature is killing me.
Re: OK silly question but…
Re: OK silly question but...
For most rechargeable batteries the best way to use them is to keep charging them up to 100% and then discharging them down as low as possible. If you keep them charged up all the time it would forget what it to have low power. Just like how we fast in Ramadan :) (phones actually have battery statistics to keep track of this).
In the olden days (3-4 yrs ago :D ) these power cut-off mechanisms were either not put in p
lace or didn't always work. To give you an example a friend (Khan) and I bought cordless phones at the same time. I would always take mine off the cradle when it was charged (2-3 hrs per day) where as Khan would always leave the phone on the charge when not in use. The result is that I still have my phone which holds a charge for most of the day and Khan's phone crapped out last year.
Baba ji
This is true for Ni-Cd batteries and to limited extent Ni-Mh cells. You may want to verify the cordless phone was one of above chenistries. You do have to discharge them all the way so they every so often " remember" their full capacity.this is called memory effect.Li ion cells don't have this effect.
Even then if they are always kept fully charged electrolyte and electrode degradation has an Arrhenius relationship wrt to voltage AND temp. In other words high voltage = more degradation. So better to use battery after it is charged or at least stop charging. But useing it all the way down - I would not recommend it. Cycle life decreases EXPONENTIALLY with depth of discharge (DOD).
Re: OK silly question but...
Choti Rajkumari ko hansee a gayee - Bas humara kaam idhar khatham.
Re: OK silly question but…
buhahahahahahah 
seriously…aapka auto correction is killing us too!
Re: OK silly question but…
:k:
Re: OK silly question but...
For laptops
How about pulling out the battery instead of the power cord. This way you'd have a fully charged battery at all times.
You might not want to do this if you're doing important work and the power main isn't too reliable, like for example in most of Pakistan.
Re: OK silly question but...
Teynshun nahin lene ka kya he tried to say. This autocorrect feature is killing me.
Haha!!
Yes autocorrect can be terrible. Let me start a thread on that :D!
Re: OK silly question but...
Southie was correct, but i will add little more to what he said already,
Li-Ion or Li-Polymer batteries (the one used in almost all mobile phones/tablets and laptops) doesn't have the memory problem like Ni-Cd or Ni-Mh batteries (used in cordless phones and home appliances), even then it is advised to disconnect the charger when the battery is completely charged as this prolonged charging will increase the battery temperature and voltage, that degrades the battery lifespan. And charging to 100% and discharging to 0% is also a myth that people spreads around the internet, you can charge or discharge at any charge level you wish. The recommended charging - discharging cycle will be - charge till 80-90% and disconnect and use till the 20-30% of the charge and start charging.
Re: OK silly question but…
Excellent :k:
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bummer:
Re: OK silly question but…
^^Oho, ok ok you can wreck my mind but please don’t be sad 
!
Re: OK silly question but...
Its about we had Auto Rechargeable batteries that recharged using our pulse.
Re: OK silly question but...
Raysn - I agree. Charging to 80% prevents high V. I terms of temp it is mu understanding internal resistance drop with increasing SOC. So temp not as much of an issue. Esp because liking batteries have an upper volt limit at which current tapers. So no question of highrt T.
But if one is using battery while it is at high Soc then chg current can be high for prolonged period at high V conditions as opposed to reaching upper V limit and tapering off - may result in an increase T also in that case.
Bottom line - continued exposure to highV and high T bad.
Re: OK silly question but...
Explain these terms Southie
High SOC
I'm guessing State of Charge
Re: OK silly question but...
When you're filling a glass of water, you turn the tap off after the glass is full. Otherwise the water overflows and destroys the counter.