Hot Deal which mobiles don't charge battery once its fully charged?

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mastervijay wrote:

Battery degradation will be there in this case on average but in your case direct power to mobile by bypassing battery will also damage the circuit/mother board of the mobile, since it heats a lot along with the processor and other components due to continues non-stop step down activities of DC.

Nope. This isn’t a hack or mod being attempted but a feature that is built-in in some devices. Exactly how it works in laptops. The difference being one can limit battery charge in only a handful of laptops (Dell, Asus, Sony) whereas its pretty much universal in case of (rooted) Android devices. Sony devices usually don’t even need root for this.

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guest_999 wrote:

Why not just buy a 3g/4g wifi router like tplink MR3420?

SIM unlocked?

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LIMBO wrote:

Nope. This isn’t a hack or mod being attempted but a feature that is built-in in some devices. Exactly how it works in laptops. The difference being one can limit battery charge in only a handful of laptops (Dell, Asus, Sony) whereas its pretty much universal in case of (rooted) Android devices. Sony devices usually don’t even need root for this.

Wont it ruin the internal parts in any way even though it bypasses the battery usage when incase of 24×7 usage ?

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mastervijay wrote:

Wont it ruin the internal parts in any way even though it bypasses the battery usage when incase of 24×7 usage ?

This is a manufacturer designed feature. /sigh.
Standard to all laptops.
Been using 2 compatible Android devices for 3 years or so.
Temps aren’t an issue cuz once the battery is charged only 0.15A is drawn at idle. Obviously higher if you launch a game or what not. Still because the battery isn’t being charged temps would be lower.

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161508 wrote:

Yeah, not rooted.
I couldn’t understand using ampere app for this.. please say in steps.

#Ps- even though I disconnect in 90% (LED goes green) I want to know how can I know this.

#Pps- until I saw this thread, I was in opinion that «smart»phones are smart enough to stop feeding battery once its capacity is full.

It doesn’t support it apparently.
https://forum.xda-developers.com/showpost.php?p...
But Redmi 4x does reportedly.

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161508 wrote:

Yeah, not rooted.
I couldn’t understand using ampere app for this.. please say in steps.

#Ps- even though I disconnect in 90% (LED goes green) I want to know how can I know this.

#Pps- until I saw this thread, I was in opinion that «smart»phones are smart enough to stop feeding battery once its capacity is full.

Its only my thinking. Not Sure about it.

Check when your phone charge 100% (If your notification light is off then it is now not charging the phone).

If no notification light then you can check that with ( Current symbol i.e. electricity symbol that we normally see on any phone when plugged in charging.)
In auto cut phones it there will be no symbol after 100% full charged. and you can even find it after 100% in older phones that dont support auto cut.

Seems too much funny – but every sign or symbol or indication has a meaning with it. That’s why i shared it with you.

AFAIK A/c to above 4A has auto-cut. I have seen it in somebody’s phone.

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mastervijay wrote:

Battery degradation will be there in this case on average but in your case direct power to mobile by bypassing battery will also damage the circuit/mother board of the mobile, since it heats a lot along with the processor and other components due to continues non-stop step down activities of DC.

degradation would be more if u recharge and discharge more. also im not playing games. hotspot and torrenting are just like normal or just above normal but not extreme activities which wont heat up processor or circuits.

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nimod wrote:

OP, use a power bank which stops output when phone is charged.
Better use a power bank with by pass charging.

but still battery will be charging even when its fully charged right if it doesn’t support bypass feature.

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shoaibmax wrote:
NO Phone actually.

It’s simple electrical science. A mobile phone has a battery and charger in a series circuit. The battery will always deplete(as the source of current will always be the battery) and the charger will always try to juice it up.
A conventional Laptop has battery and charger in a parallel circuit. The source of current can either be battery or the charger. Hence, a laptop works even without a battery.

cant a smartphone be made a bit more smarter?

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shoaibmax wrote:

Yes. But it’s too complicated to do. The power source needs to be modified so that it exactly matches the voltage of the battery while also dealing with minute power surcharges.

i dont think its that much complicated.

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guest_999 wrote:

Why not just buy a 3g/4g wifi router like tplink MR3420?

have power fluctuations over here. so mobile can provide uninterrupted data + i can directly download torrents on that mobile instead of downloading torrents on a mobile connected to the router.

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rajrocks wrote:

have power fluctuations over here. so mobile can provide uninterrupted data + i can directly download torrents on that mobile instead of downloading torrents on a mobile connected to the router.

With the right router+firmware combo you can download torrents right into your router itself. With attached USB storage. Or RPi setup.

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LIMBO wrote:

With the right router+firmware combo you can download torrents right into your router itself. With attached USB storage. Or RPi setup.

ya bro im aware but have to invest to too many items which would cost me more than (5k) a single mobile with the bypass feature which would suffice everything i need + neways i need to upgrade my mobile coz it does not support all the new lte bands where operators are deploying lte + battery is gone + very old os + very old hardware + in single sim i can do all these orelse need to maintain an extra sim which nowdays is costing to just keep active + my mob doesnt support bsnl lte to which i wanna port + charging port is loose.

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ayushgoel wrote:

Redmi 7A

how did u confirm?

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LIMBO wrote:

Redmi 3s,Redmi Note 3. But not Poco F1 unfortunately. You can find more info in the thread that I had referenced earlier.

how did u confirm for these devices?

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161508 wrote:

Yeah, not rooted.
I couldn’t understand using ampere app for this.. please say in steps.

#Ps- even though I disconnect in 90% (LED goes green) I want to know how can I know this.

#Pps- until I saw this thread, I was in opinion that «smart»phones are smart enough to stop feeding battery once its capacity is full.

can u share the screenshots of the various states?

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rajrocks wrote:

cant a smartphone be made a bit more smarter?

Then who will buy a new smartphone every year? smile

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rajrocks wrote:

how did u confirm for these devices?

I own all three.

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rajrocks wrote:

can u share the screenshots of the various states?

I m talking about the notification LED.. when connected to charger it lights up.. (yellow of battery is below 90% charged & green if 90% to 100%)

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jennyllwilliams wrote:

Its only my thinking. Not Sure about it.

Check when your phone charge 100% (If your notification light is off then it is now not charging the phone).

If no notification light then you can check that with ( Current symbol i.e. electricity symbol that we normally see on any phone when plugged in charging.)
In auto cut phones it there will be no symbol after 100% full charged. and you can even find it after 100% in older phones that dont support auto cut.

Seems too much funny – but every sign or symbol or indication has a meaning with it. That’s why i shared it with you.

AFAIK A/c to above 4A has auto-cut. I have seen it in somebody’s phone.

… If your notification light is off then it is now not charging the phone …

that is not true as per the discussion going on here..

yes, the ‘flash’ something like – https://cdn0.desidime.com/attachments/photos/597895/medium/6312243805672_lightning_512x512.png?1575881978 still appears even after 100% charging and notification LED going off.

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161508 wrote:

… If your notification light is off then it is now not charging the phone …

that is not true as per the discussion going on here..

yes, the ‘flash’ something like – https://cdn0.desidime.com/attachments/photos/597895/medium/6312243805672_lightning_512x512.png?1575881978 still appears even after 100% charging and notification LED going off.

So By these two indicators, i think
Flash denotes – Current is still going in the device.
Led Off – Your Smartphone is 100% Charged now. You can plug it off.

Conclusion – Based on above your smartphone not support Auto- Cut feature.

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shoaibmax wrote:

Then who will buy a new smartphone every year? smile

even then ppl will buy bcoz its “latestz” model. laughing

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LIMBO wrote:

I own all three.

bro im asking how did u confirm. means any app or method?

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161508 wrote:

I m talking about the notification LED.. when connected to charger it lights up.. (yellow of battery is below 90% charged & green if 90% to 100%)

bro im asking u to share the screenshots of the ampere app in various states. like before getting to 100% charged state and the 100% charged state.

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@LIMBO does the below means that battery is not getting charged and mobile is purely running on charger?
@161508 ru getting the below when ur mobile is fully charged?
https://cdn0.desidime.com/attachments/photos/597965/medium/6314097Screenshot-2019-09-03-06-19-21.png?1575959315
web picture hosting

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rajrocks wrote:

@LIMBO does the below means that battery is not getting charged and mobile is purely running on charger?
@161508 ru getting the below when ur mobile is fully charged?
https://cdn0.desidime.com/attachments/photos/597965/medium/6314097Screenshot-2019-09-03-06-19-21.png?1575959315
web picture hosting

Can’t say for sure. I have root access. So I set battery to charge no more than 80%. Even plugged in overnight it stays there. But the device is drawing current directly from the AC Mains ( as opposed to battery ) which can be confirmed by any kernel manager like FKM.
Edit: Battery voltage, temp remain unchanged.
Yureka devices can be rooted easily. Decent developer support. IIRC at least one was compatible.

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LIMBO wrote:

Can’t say for sure. I have root access. So I set battery to charge no more than 80%. Even plugged in overnight it stays there. But the device is drawing current directly from the AC Mains ( as opposed to battery ) which can be confirmed by any kernel manager like FKM.
Edit: Battery voltage, temp remain unchanged.
Yureka devices can be rooted easily. Decent developer support. IIRC at least one was compatible.

now im getting this also. now sure whether bypass feature is there or not.
https://cdn0.desidime.com/attachments/photos/598081/medium/6316234Screenshot-2019-09-03-06-43-13.png?1576053878

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rajrocks wrote:

now im getting this also. now sure whether bypass feature is there or not.
https://cdn0.desidime.com/attachments/photos/598081/medium/6316234Screenshot-2019-09-03-06-43-13.png?1576053878

Battery voltage while being charged to the full rises to 4.4V or even higher but quickly falls to 4.1-4.2V. The fact that its always around 4.4V indicates that the battery is being constantly charged.

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