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Dangerous Battery Charging

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By kire.htc, Senior Member on 17th March 2012, 04:05 PM
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I read few topics similar like this on other web sites, but i need more opinions from you guys. I have 3vo GSM for few days and i am afraid of charging the batery. Why? Because it is going up to 4350mv or 4.35V, and as i know it's too much (it's normal up to 4.1 or 4.2) and with that kind of charge you can reduce battery life. So i need to know is that rom related, kernel related or it's something wrong. I am rooted on MikRunny v1.11 and don't know is that happaning on stock phone. I don't know what is wrong, but i don't like this kind of charging.
 
 
17th March 2012, 04:55 PM |#2  
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It's normal.
18th March 2012, 08:01 PM |#3  
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Quote:
Originally Posted by majid25

It's normal.

It's definetly not normal. It's hurting battery.

Wikipedia:

High charge levels and elevated temperatures (whether from charging or ambient air) hasten capacity loss. Loss rates vary by temperature: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F).
(Many) Lithium-ion battery packs contain fail-safe circuitry that shuts down the battery when its voltage is outside the safe range of 3–4.2 V per cell. ....3.7 V nominal voltage with a 4.2 V max charge.

Typically, lithium-ion cells are charged with 4.2 ± 0.05 V/cell.

Is there something that can fix this????
18th March 2012, 08:35 PM |#4  
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4350mv is totally normal for our phones.
18th March 2012, 08:55 PM |#5  
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It's perfectly normal, stop being paranoid. It's just a phone.

Sent from my PG86100 using Tapatalk
18th March 2012, 10:01 PM |#6  
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Thanks for reply. My phone is charging from 99% to 100% in 45 minutes. Is that normal too??

Sent from my HTC EVO 3D X515m using XDA
19th March 2012, 12:02 AM |#7  
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Quote:
Originally Posted by kire.htc

Thanks for reply. My phone is charging from 99% to 100% in 45 minutes. Is that normal too??

Sent from my HTC EVO 3D X515m using XDA

No, that's a lie

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19th March 2012, 12:33 AM |#8  
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Quote:
Originally Posted by bloodrain954

No, that's a lie

Sent from my PG86100 using Tapatalk

Lol.

Trust me there are fail safes. Your phone will not blow up and your battery will no spontaneously com bust. Quit being paranoid...
19th March 2012, 02:50 AM |#9  
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Quote:
Originally Posted by bloodrain954

It's perfectly normal, stop being paranoid. It's just a phone.

Sent from my PG86100 using Tapatalk

Just a phone? It's also got a highly volatile battery in it if you charge it incorrectly.

When people say "it's normal", you need to clarity whether normal = phone misreads charge voltage, or if normal = normal to charge at 4.35v. If it's "normal to charge at 4.35v" then that's a real big problem with your phone.

Li-ion is not to be ******* with. Please don't go telling people it's OK when it's not.

[This has been a public service announcement] lol ;)

Sorry if the tone is harsh, but please go and read some articles on li-ion charging people

Quote:
Originally Posted by meme405

Lol.

Trust me there are fail safes. Your phone will not blow up and your battery will no spontaneously com bust. Quit being paranoid...

So at what point are you going to mention one of the fail-safe's being that it vents to atmosphere when the battery pressure get's too high? (possibly with flame).
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19th March 2012, 03:46 AM |#10  
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Overcharging li-ion battery is very dangerous. I did some research and this is what i found:

I fully charged my battery. On battery monitor widget it shows 4349mV. I turn off the phone, take off batery and measure with digital multimetar. It shows 4.31mV. So maybe the phone does't show very accurate stats. I'am still not sure.

This is what i found on web:
A source reached out to us and let us know that the Motorola Bionic's 3.8 V battery is in fact using a new alternative high voltage chemistry, and is not simply an overcharged Lithium Ion battery. This same battery will be used in the just-announced Motorola Atrix 2 as well. Note that the battery name includes an H (eg HW4X) to denote the use of these high voltage battery chemistries. This new chemistry also has similar cycle life as existing 3.7 V nominal batteries, and has been in the works for several years.

It’s just interesting that this particular battery is 3.8 V nominal (4.3 V fully charged), as this 0.1V boost design choice gives the battery a bit more capacity. It isn’t a huge difference, 3.7 V would make the 1735 mAh battery 6.4 Whr, the 3.8 V of this current design makes it 6.6 Whr.
SOURCE: http://www.anandtech.com/show/4910/m...-with-4g-lte/2

This will be useful too:
http://forum.xda-developers.com/showthread.php?t=871051

So i hope that this will help someone.
24th March 2012, 08:40 PM |#11  
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Quote:
Originally Posted by bloodrain954

No, that's a lie

ORLY? I've noticed on several different chargers that my Amaze is moderating the charging rate (and amperage, if you believe Battery Monitor Widget) as it nears 100%. I get "Battery Full" and "Charging complete" alarms well after "100%" is reached.

Both images are from overnight charge cycles, with screen turned off. Autosync and other periodic processes are disabled at night by Llama. Vertical indices represent one hour. Second image is for an HTC stock charger, U250.



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