I just got my Extended battery and im trying to charge it fully but it wont charge past a certain point. While Plugged in i can watch it discharge slowly. Anyone with this battery have this problem?
em2drvr03 said:
I just got my Extended battery and im trying to charge it fully but it wont charge past a certain point. While Plugged in i can watch it discharge slowly. Anyone with this battery have this problem?
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I would charge it first time with the phone off, and then wipe battery stats to be on the safe side.
Sent from my SCH-I535 using xda app-developers app
perhaps it has to do with the fact that the battery norm voltage is 3.7 instead of 3.8. full charge voltage will also vary too. Anandtech did an article on one of motorola phones.
hyperion batteries also has a integrated chip that prevents overcharging beyond 4.2v (which is 100% for 3.7v batteries), 3.8v batteries have higher full charge voltage. 4.35v i believe.
Mine charges 100%. I did charge it the first time with the phone off, but I don't know if that matters or not.
I love that battery with the Hyperion extended case.
Related
I'm interested in buying an external battery charger, or a cradle charger, so I can have two batteries going—one always charging outside of the phone—and thus never having to plug my phone in to charge. After a brief eBay search, all of the cheapest ones appear to be the same: you can find the model I'm referring to here.
My concern, however, is with the specifications listed, which read:
Input: AC 100-240V~50/60Hz 0.15A
Output: DC 4.2V~350mA~±50mA
USB: 5.2Vd.c.800mA
The output appears to be 300-400mA, which is slightly lower than a stock charger. As far as I know, this tells me how fast it will charge the battery. Since it will be plugged into the battery charger when I swap batteries (for the full discharge of the other battery), I don't care if it charges slower. However, the voltage appears to be quite low at 4.2V—and I'm entirely unsure how this will affect things. Will it still charge? Can it do damage to the battery? Should I not purchase this unit? What exactly does a lower/higher voltage mean?
Anyone?
Does it work? Is it safe? Does the lower voltage matter?
I've been using this same battery charger for over a year now. It charges my stock and extended battery (3500mAh) without any problem. Yes it does take longer compared to the normal charger to charge your battery because of the low mA but I don't think it has had any affect on my batteries. So the only downside is it takes comparatively longer to charge.
mo_danish said:
I've been using this same battery charger for over a year now. It charges my stock and extended battery (3500mAh) without any problem. Yes it does take longer compared to the normal charger to charge your battery because of the low mA but I don't think it has had any affect on my batteries. So the only downside is it takes comparatively longer to charge.
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Great! That's what I wanted to know. Thanks!
I have this charger as well. I can confirm that I have have not had any problems with the charger sense I got it. I ordered mine from Amazon here:
http://www.amazon.com/2600mAh-Batte...3352199&sr=8-4&keywords=Galaxy+note+batteries
Running Synergy Rom stock kernal 15 toggle from AT&T
Ran phone till it died last night, didn't start it back up just plugged it into charger, got empty battery pic, went to bed got up 7 or so hours later and phone was only at 84% ? Another odd thing is the way it shows the charging curves on the battery stats graph. https://www.dropbox.com/s/mupjhqpxl5nhg1b/Screenshot_2012-07-26-08-37-42.png
Anyone have any ideas or have the same thing happen
EDIT:
Think I may have figured out the only charging to 84% problem. I forgot I cycled a new non Samsung battery into my phone. Samsung has adopted a 3.8v battery were as most other phones use 3.7v the aftermarket battery is only 3.7v so I'm guessing its not showing full charge because the battery is never making it to 3.8v. As for the odd stats on the graph I'll see if the Sammy battery does the same thing the next time I kill it. Its my understanding that the batteries have their own overcharge circuitry so I'm guessing generic wall chargers will still charge the Sammy 3.8v batteries to the full 3.8v and not 3.7v the chargers I have also lack a voltage rating so I'm again guessing that that is because it is regulated by the battery itself.
Hi everyone,
I found a way to improve battery life of our phone. We just charge our phone with usb cable in usb mass-storage mode.
Let it full charge and enjoy strongly battery life. It worked for me and after that you didnt need to charge with cable again just do normal charge with adapter.
Just tested with my phone CM10 A2. Battery drain about 2%(6hrs didnt do anything).
Enjoy!
Try reboot your phone and see your battery drain or not
Sent from my GT-I9003 using xda app-developers app
Lol, no difference at all, you probably just did enough cycles for it to adjust, battery life depends on your usage really.. and this is not a 'fix'.
@Ave666, rebooting will always take your battery down, it will slowly ramp to the correct value again after a few minutes.
Skander1998 said:
Lol, no difference at all, you probably just did enough cycles for it to adjust, battery life depends on your usage really.. and this is not a 'fix'.
@Ave666, rebooting will always take your battery down, it will slowly ramp to the correct value again after a few minutes.
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Hello all,
There is a drop of true. According to battery's chemistry, it's better to charge with lower amperage. Usual USB port provides 500mAh, ordinary charger 750 to 1000mAh.
Of course, charging via usb takes longer, but battery packs a little more voltage. If you have some app, witch checks battery voltage, you can check it. Read more
http://www.powerstream.com/li.htm
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm
cukierkas said:
Hello all,
There is a drop of true. According to battery's chemistry, it's better to charge with lower amperage. Usual USB port provides 500mAh, ordinary charger 750 to 1000mAh.
Of course, charging via usb takes longer, but battery packs a little more voltage. If you have some app, witch checks battery voltage, you can check it. Read more
http://www.powerstream.com/li.htm
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm
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Either way, won't 'magically' make a difference from the first charge, that is used to preserve the battery, and not make it magically last longer.. lol.
cukierkas said:
Hello all,
There is a drop of true. According to battery's chemistry, it's better to charge with lower amperage. Usual USB port provides 500mAh, ordinary charger 750 to 1000mAh.
Of course, charging via usb takes longer, but battery packs a little more voltage. If you have some app, witch checks battery voltage, you can check it. Read more
http://www.powerstream.com/li.htm
http://batteryuniversity.com/learn/article/charging_lithium_ion_batteries
http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
http://electronics.howstuffworks.com/everyday-tech/lithium-ion-battery.htm
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So you mean to say lower mA battery charger is good for battery health?? I have observed that 1A battery quickly charges battery but also rises temperature of phone as well as battery drian is little bit higher.
I don't think that it makes a real difference. Charging our battery (1650 mAh) with a normal charger at 1A current is fine as it's charing with 0.6C. The charger automatically stops charging when the voltage of your Li-Ion cells have reached the wanted voltage AND the current has gone low (about 5% or a bit less; depends on charger). Much more important is that you don't stress your battery too much, so that the capacity doesn't decease that fast.
Never deep discharge Li-Ion batteries. This kills your battery (Should not happen as phone automatically turns off, but then don't try to turn it on again)
Avoid full full charges. Sounds silly, but voltage related stress is lower which is good for your battery health.
(Thats the reason, why I store my Li-Po batteries for my RC helicopter at 40%-50% charge at the end of summer)
Remember: Bad battery health = low capacity = poor battery life = quickly discharged phone
Charge often to keep your battery at a medium charge level, which is best for your batteries.
Li-Ion batteries dont know the "memory effect". Partly charging and discharging is no harm.
Vishal, mainly, yes. I'm charging usually via USB.
Sent from my GT-I9003
vishal24387 said:
So you mean to say lower mA battery charger is good for battery health?? I have observed that 1A battery quickly charges battery but also rises temperature of phone as well as battery drian is little bit higher.
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Technically, the slower the charge the better it is, but the difference is very, very very unnoticeable..
Skander1998 said:
Technically, the slower the charge the better it is, but the difference is very, very very unnoticeable..
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Regards that "unnoticable": Are you saying that in general as you did for the fact before? I'm asking because charge currents greater than 0.85-1C with standard Li-Ion batteries cause a noticable effect.
I have tested some Li-Po batteries with different charge currents, as they where cheaper than the ones I am using for my helicopters. The one that I have charged with 0.75C behaved quite fine, while the one with 1.25 C didn't like that charge currents very much.
Taraen said:
I don't think that it makes a real difference. Charging our battery (1650 mAh) with a normal charger at 1A current is fine as it's charing with 0.6C. The charger automatically stops charging when the voltage of your Li-Ion cells have reached the wanted voltage AND the current has gone low (about 5% or a bit less; depends on charger). Much more important is that you don't stress your battery too much, so that the capacity doesn't decease that fast.
Never deep discharge Li-Ion batteries. This kills your battery (Should not happen as phone automatically turns off, but then don't try to turn it on again)
Avoid full full charges. Sounds silly, but voltage related stress is lower which is good for your battery health.
(Thats the reason, why I store my Li-Po batteries for my RC helicopter at 40%-50% charge at the end of summer)
Remember: Bad battery health = low capacity = poor battery life = quickly discharged phone
Charge often to keep your battery at a medium charge level, which is best for your batteries.
Li-Ion batteries dont know the "memory effect". Partly charging and discharging is no harm.
Click to expand...
Click to collapse
nice info thx.
Hey guys, does anyone know a tweak where my phone will stop charging at like 99% so that when I charge overnight, it doesn't over charge? Or is this already a feature in many custom kernels such as elementalx
Sent from my Nexus 5 using XDA Free mobile app
It's a feature of the phone itself. Don't worry about it
Sent from my Nexus 5
With all my phones, I've always left them charging overnight. As jd1639 says - they are designed to ensure they are not overcharged. This is both to protect the phone and also not to waste electricity.
I use an old Motorola charger by my bedside which is rated at 500 mah. As it's going to be plugged in for 7 or 8 hours, it might as well charge slowly! It's better for the battery that way - maybe see if you can pick up a lower-rated charger if you want to be extra careful.
surrealjam said:
With all my phones, I've always left them charging overnight. As jd1639 says - they are designed to ensure they are not overcharged. This is both to protect the phone and also not to waste electricity.
I use an old Motorola charger by my bedside which is rated at 500 mah. As it's going to be plugged in for 7 or 8 hours, it might as well charge slowly! It's better for the battery that way - maybe see if you can pick up a lower-rated charger if you want to be extra careful.
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That's actually worse for the battery, being charged too slowly
Sent from my Nexus 5 using Tapatalk
Ben36 said:
That's actually worse for the battery, being charged too slowly
Sent from my Nexus 5 using Tapatalk
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I've not heard that anyway, but is 500 mah "too slowly"? That's the output you'll get from a USB drive.
Ah right... Just looked it up. If it's an ac wall charger. It's ok. If it's a usb port they generally give out less voltage (around 4.2-4.5) so your battery won't last as long between charges
Sent from my Nexus 5 using Tapatalk
Ben36 said:
Ah right... Just looked it up. If it's an ac wall charger. It's ok. If it's a usb port they generally give out less voltage (around 4.2-4.5) so your battery won't last as long between charges
Sent from my Nexus 5 using Tapatalk
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If the battery is fully charged it shouldn' matter what voltage was used to get there. A full charge is a full charge.
marleyfan61 said:
If the battery is fully charged it shouldn' matter what voltage was used to get there. A full charge is a full charge.
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This isn't true. A charger only works by applying a voltage to the cable which causes electrons to flow into the battery. The N5 battery is at full charge at 4.2V. If you're charging it with a supply that is running at less than 4.2V it will only charge up to the voltage applied.
Edit: I guess to clarify I should say that you're right that a "full charge is a full charge" but you will never get to a full charge if you are applying too low a voltage. And keep in mind that if your USB port is only providing 4.2A there is a voltage drop across the wire so you would end up with a lower voltage at the battery.
marleyfan61 said:
If the battery is fully charged it shouldn' matter what voltage was used to get there. A full charge is a full charge.
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That's ampage i think. Ampage will gain with charge. Voltage will always stay the same
Edit -
http://batteryuniversity.com/learn/article/charging_from_a_usb_port
Sent from my Nexus 5 using Tapatalk
Good night,
My Nvidia Shield barely charges at this point in time, shows like 16h to charge and more...
I have desoldered the battery and charged it with IMAX B6 up to 4.2 Volts and got around 3000mah but the voltage is still being held at 4.2V good.
Do you know if this is normal behaviour when the battery is already a bit bad or do you think the charging circuit can be bad?
I'd be pissed to buy a battery to find out the charging circuit is barely putting any charge
guily6669 said:
Good night,
My Nvidia Shield barely charges at this point in time, shows like 16h to charge and more...
I have desoldered the battery and charged it with IMAX B6 up to 4.2 Volts and got around 3000mah but the voltage is still being held at 4.2V good.
Do you know if this is normal behaviour when the battery is already a bit bad or do you think the charging circuit can be bad?
I'd be pissed to buy a battery to find out the charging circuit is barely putting any charge
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Did you keep the PCB strip from the old battery on the new one ?
moonhop7 said:
Did you keep the PCB strip from the old battery on the new one ?
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I didn't buy a new battery yet.
I would only buy one if I can be sure the tablet charging circuit is any good...
But like I said I charged the battery externally to 4.2V and the next day it still had 4.2v so it doesn't look like the battery is completely bad as it's surely holding voltage well, just lost quite a bit of capacity which is normal.
I'm thinking that the charging circuit of the tablet is kaput...