Database Users

Portable Charger

I was able to find a JWIN portable charger that uses 4AA or 4AAA rechargeable batteries and charges the Nexus at AC voltage. It also recharges the batteries three ways; USB, DC and AC. The best part was the price $15.99 locally, was wondering if anyone found something similar locally if so lets share pix.
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lol, I take back my statement, it's a great portable charger. Plus it's at an reasonable price also. Thanks for sharing that with us. I'm going search some locally also

It takes ANY rechargable batteries its a charger as well as a recharger. Sorry if the 1st post wasnt clear. Currently i have 4 2650 mAh AA batteries in it i have charged my PsP off it and now its charging my Nexus
htc fan89 said:
if it took recharge battery such as lithium batteries, it be a great portable charger, but regular battery it's too much hassle.
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That's pretty cool, but how much does it really charge?
On 4 full batteries, how much % does your phone charge?

Paul22000 said:
That's pretty cool, but how much does it really charge?
On 4 full batteries, how much % does your phone charge?
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I just charged a PSP and my Nexus to 100% off my 4 2650mAh AA's, but that is because of the batteries I used. The mAh of the AA's or AAA's is what really matters. Using 4 1500mAh AA's earlier today I got one full recharge with some juice to spare, with my 2650 mAh im still currently testing with just my Nexus.... should be 2 full charges. I will confirm the #of charges in the next 48hours, or less if I can drain my batteries faster lol

[Q] Nexus 4 battering keeps discharging and recharging while plugged in

Hi everyone,
I searched the forum for a satisfactory answer yet I don't seem to find one so I'm going to ask here...
I have the habit of plugging my Nexus 4 as soon as I get home, keep it plugged overnight, and unplug it the next day when going to work. About two weeks ago I noticed that occasionally the phone indicates that the phone is fully charged yet, some minutes afterwards it indicates that the battery is at 98-99% and is charging again. I was quite intrigued so I started using some battery applications (e.g. Battery Widget Reborn) and I now notice that the "problem" is quite frequent and happens every single time the phone is plugged (I tried withe the original USB cable that came with the phone as well as with other cables). Attached is an image showing the weird pattern that I'm having...
Does any one have the same problem ? Anyone cares to explain to me why this is happening ???
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Isn't that done on purpose? You don't want to keep charging at 100% so the phone discharges after reaching 100% for a while.
Sent from my Nexus 4 using xda app-developers app

rasengan82 said:
Isn't that done on purpose? You don't want to keep charging at 100% so the phone discharges after reaching 100% for a while.
Sent from my Nexus 4 using xda app-developers app
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When 100% is reached, the battery, for the best of my knowledge, is not used... Therefore, I find that it discharges very very quickly for an unused battery !

Mine does that as well. I thought that was normal?
Sent from my Nexus 4 using Tapatalk 4 Beta

It's Normal as phone batteries reach 100, discharge a bit and stays there. Btw ROM + Kernel?

sigma392 said:
It's Normal as phone batteries reach 100, discharge a bit and stays there. Btw ROM + Kernel?
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Just stock Android 4.2.2

How quickly it uses that small amount of battery that kicks it back into charge mode is going to depend on what you have running and syncing in the background.
Sent from my Nexus 4 using Tapatalk 4 Beta

Nexus 10 charging Time

Nexus 10 is a great tab but some people tell it take long time to charging
How much time to charge With Magnetic pogo charge and usb
Some people tell me 0 _ 100 7 to 8 hours full charge
It is true or not
Sent from my HTC One using xda premium

with a slow USB charger 6hrs + is quite possible but get the Pogo connector on the original charger and it can be pretty quick considering the size of the battery. the graph is on charge with the Pogo, I rarely charge on USB since getting that.
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Sent from my Nexus 10 using XDA Premium HD app

I can't comment on the exact time it takes to charge with the stock charger, however when I plug mine in at night it is always 100% in the morning. I don't have a pogo charger. I've never not been able to make it through a day on a single charge.
Sent from my Nexus 10 using Tapatalk HD

sdmark said:
I can't comment on the exact time it takes to charge with the stock charger, however when I plug mine in at night it is always 100% in the morning. I don't have a pogo charger. I've never not been able to make it through a day on a single charge.
Sent from my Nexus 10 using Tapatalk HD
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Here are my results. On the stock charger for every 10% of discharge it takes 39 minutes. So if you were to start charging from 10% at 39 minutes per 10% it would take you 351 minutes or 5.85 hours. And that is leaving screen to auto brightness. If brightness is at any different setting it will, and I mean it will take much longer. Even when its in sleep.
I love the tablet. Have had many brands. And have had a lot of Samsung devices also. But seems to me the bigger Samsung makes there products. The worse the battery life gets. That includes SGS3 and 4. "Google. Glad to see you open up to other manufacturers. Samsung just can't cut it anymore".

Note 3 charges very slowly on portable charger but it used to work fine

I have the white portable charger that came as a gift with my purchase of Note 3 (it's an original Samsung accessory). It used to work just fine, charging quite quickly. However, now, it charges extremely slowly. If I use my phone while charging, it either won't charge or will drain slowly.
I'm not sure if it's a hardware issue (my phone, the battery) or software (ROM/kernel). IIRC, when it worked, I was on Omega ROM. Now I'm on CM11.
Also, I lent my friends the charger and it worked just fine on their smaller phones.

It happened to me too a few times. The phone would charge very slow when plugged into the wall charger.
Then just yesterday i found out that obviously sometimes when i plugged in the wall charger, the phone would recognize it as a usb connection. So therefore it was charging slower. I then had to reconnect the charger and all was fine.
I now installed Battery Widget from the Play Store which shows to what you are connected when charging, AC or USB. And it has a nice charging animation too.
Just sayin', as this might not help you.
Sent from my N9005

Hm, it's only 1.8Ampere.... That's a little weak.
Did you check for any running apps draining the battery whilst using it?
I charge my Note 3 with my aSolar Xstorm 15600mah every night(2.1Ampere). The only times it charged slowly was when I had left an app running (usually 9gag) and/or suffered a wakelock.
Sent from my SM-N9005 using Tapatalk 2

Have you tried this?
https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent
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celderic said:
Have you tried this?
https://play.google.com/store/apps/details?id=com.abmantis.galaxychargingcurrent
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I will, looks great, thanks!
Out of curiosity, how did you know about this? There seems to be so many useful utilities out there, how do I explore them all?
Update: Ah.. the battery pack was giving me only 300mA. No wonder.

fterh said:
I will, looks great, thanks!
Out of curiosity, how did you know about this? There seems to be so many useful utilities out there, how do I explore them all?
Update: Ah.. the battery pack was giving me only 300mA. No wonder.
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Change the charging cable.. This probably the real reason why you got only 300mA charging current..

If you are using the charger that came with the phone, I wouldn't be surprised, they are crap. I have seen this problem with my note 3 and two other galaxy s3 in my family. I think that's Samsung wanting to make extra money selling additional chargers.
Sent from my SM-N9005 using Tapatalk

Is battery life getting better over time?

When I first used the OPT, I noticed that it loses battery *in standby* pretty fast. Screen on time was good but just leaving it be would drain a lot of battery. I turned off LTE but also noticed that it often struggled with cell network quality (which usually makes a phone look for other stations etc. thus battery is used a lot).
However, today, after a couple of days of use and maybe 3, 4 recharge cycles, it seems a bit better. Is there a chance that this is an actual effect (it could be something very different). Do batteries also get better after some use or am I just biasing my highly non-scientific measurements here?

sevensirk said:
When I first used the OPT, I noticed that it loses battery *in standby* pretty fast. Screen on time was good but just leaving it be would drain a lot of battery. I turned off LTE but also noticed that it often struggled with cell network quality (which usually makes a phone look for other stations etc. thus battery is used a lot).
However, today, after a couple of days of use and maybe 3, 4 recharge cycles, it seems a bit better. Is there a chance that this is an actual effect (it could be something very different). Do batteries also get better after some use or am I just biasing my highly non-scientific measurements here?
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I've noticed this too. I think that this battery technology does improve its capacity after several charge/discharge cycles.

Correct but what about 100+ cycles... It start loosing its power.... What's the best way to keep a li-ion unit last longer? Any help or suggestions?
Sent from my Galaxy Note 4 using XDA Premium 4 mobile app

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Is it normal that android OS is hogging battery?
Sent from my ONE A2001 using Tapatalk

Hassan Askari Suzuki said:
Correct but what about 100+ cycles... It start loosing its power.... What's the best way to keep a li-ion unit last longer? Any help or suggestions?
Sent from my Galaxy Note 4 using XDA Premium 4 mobile app
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Good practice is not let battery overheat, like when you play and charge, also batteries don't like to be fully discharged try to keep at least 20% and start charging again
Sent from my ONE A2005 using Tapatalk

Short answer. No, worse.