OK silly question but...

[Niksik]

Re: OK silly question but...

@Cheegum

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.

Wah very good jee.

[Cheegum]

Re: OK silly question but…

Wa alaikum adaab

[Southie]

Re: OK silly question but...

@SaeedinPakistan

Explain these terms Southie High SOC I'm guessing State of Charge

Yes

[Niksik]

Re: OK silly question but...

^^ Not to nit pick at your analogy but in the case of the phone charge, the excess water destroys the glass itself unlike the example u gave. LOL. In the original post, I talked about getting a simple explanation so I can explain the concept to my daughter. This was her response:

"Mama, what Cheegum Uncle said is very clear. But if the glass is over filled with water, it doesn't break."

[Cheegum]

Re: OK silly question but...

As a matter of fact it does. But i didn't want to get into that as i wanted to avoid over complicating my explanation.

Look what water did to the Grand Canyon, to phir glass konsay khait ki mooli haiy!

Also letting water overflow means high pani ka bill and extra gunah.

Often times the cell phone message says Unplug charger to conserve energy costs.

[Southie]

Re: OK silly question but...

@Cheegum

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.

Yeh baath such hai dost. But let us assumeglass and/or tap has a water level management system. The system designer defines 90% level as full. Once water level reaches 88% tsp flow gets restricted. As it nears 90% water flow is down to a faint tricklrex- just to compensate for evaporation

Similarly BMS restricts charge I to trickle as battery approaches 100% Soc.

Li-ion cells charge V is 4.1 or 4.2v using graphite neg electrode. No danger of chagrin level overflowing if correct chg Protocol used.

Some designers restrict cygnet to 4.0 or 3.9 v to ensure chg stiopped at < 100%.

[Niksik]

Re: OK silly question but…

@Cheegum

As a matter of fact it does. But i didn’t want to get into that as i wanted to avoid over complicating my explanation.

Look what water did to the Grand Canyon, to phir glass konsay khait ki mooli haiy!

Now that is better!
I will update her in the morning as she fell asleep. But I totally get ur explanation.

@Southie

Yeh baath such hai dost. But let us assumeglass and/or tap has a water level management system. The system designer defines 90% level as full. Once water level reaches 88% tsp flow gets restricted. As it nears 90% water flow is down to a faint tricklrex- just to compensate for evaporation

Similarly BMS restricts charge I to trickle as battery approaches 100% Soc.

Li-ion cells charge V is 4.1 or 4.2v using graphite neg electrode. No danger of chagrin level overflowing if correct chg Protocol used.

Some designers restrict cygnet to 4.0 or 3.9 v to ensure chg stiopped at < 100%.

Southie jee, aap ney toh mere mind twist ker ke ghooma diya ! Achi khaasi mooli ke khaith me ghoom rahi thi mey.

[Southie]

Re: OK silly question but...

Mooli ki khaith yaani? Khaith is farm. Mooli?

[Cheegum]

Re: OK silly question but...

Southie sahib mooli kay khaith may mobile phone gets good reception.

[Southie]

Re: OK silly question but...

Ab aap bhi humein confuge karne mein thule huway hain!

[SaeedinPakistan]

Re: OK silly question but...

Mooli kay khaith me mooli hana mana hay. Fasal kharab ho jae gi warna.

[Niksik]

Re: OK silly question but...

@Southie

Mooli ki khaith yaani? Khaith is farm. Mooli?

Mooli = Radish

@Cheegum

Southie sahib mooli kay khaith may mobile phone gets good reception.

:D Absolutely!

@SaeedinPakistan

Mooli kay khaith me mooli hana mana hay. Fasal kharab ho jae gi warna.

Not if you're the maali. He knows how to handle his mooli. :D

[Southie]

Re: OK silly question but...

Ab powerful guy bhi aa gaye confuse addisun.

Ok good night!

[Southie]

Re: OK silly question but...

Ok just read Mooli = radishes.

Humein bhi Zara bhayjiyo!!

[SaeedinPakistan]

Re: OK silly question but...

Maali to din raat mooli ke parathe kha ke bhi gulab ki tarah khushbodar rehta hay.

[Niksik]

Re: OK silly question but...

^^ LOL!!

[Rayan]

Re: OK silly question but...

@Cheegum

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.

This is wrong, in today's mobile phones, Li-Ion/Pr batteries and the chargers the the water tap will cut off the water flow once the glass is full. You can compare it to big water tanks where the water flow will be stopped once the tank is full.

[Cheegum]

Re: OK silly question but...

@Rayan

This is wrong, in today's mobile phones, Li-Ion/Pr batteries and the chargers the the water tap will cut off the water flow once the glass is full. You can compare it to big water tanks where the water flow will be stopped once the tank is full.

Yes today's water taknks are smart enough with such functions, why then does the phone give the message i.e. tanki is full please shut off the tap? (re: first post)

[Rayan]

Re: OK silly question but…

@Cheegum

Yes today’s water taknks are smart enough with such functions, why then does the phone give the message i.e. tanki is full please shut off the tap? (re: first post)

Because of this

@Rayan

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.

And this

@Southie

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.

And this Battery University | BU-409: Charging Lithium-ion

And this Learn About Batteries | Battery University

And this Ask Ars: What is the best way to use a Li-ion battery? - Ars Technica

And this Cutoff voltage - Wikipedia, the free encyclopedia

[Southie]

Re: OK silly question but...

Battery University is one of the best sites.