Has anyone tried using a non-OEM battery with a Quick Charge 2.0 charger? I've had a TrendON battery as a spare for a while but just decided to swap it with the OEM Samsung battery. After it dropped to roughly 60% I put the phone on an Anker QC 2.0 charger and watched the realtime power with a Portapow Premium DC Multimeter. It was initially drawing 15 watts (9V * 1.67A) and the charging light was green on the charger, indicating fast charging.
After a few minutes I took another look and while the voltage was still at 9V, the current was near zero. The phone was taking in milliwatts of power. I actually let it sit for a few more minutes and then restarted the phone thinking something was off. After restarting I let it sit a few more minutes and then confirmed that the battery percentage wasn't rising. It was stuck around 77%.
I took it off the fast charger and then put it on a "standard" 2A Anker charger and then the battery percentage continued to climb regularly. Really odd.
Anyways I have a graph showing the entire behavior. The green line is battery percentage and the orange line is charge rate as a delta of battery % per hour.
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The fast charger has worked flawlessly in the past when I had the OEM battery installed. I'm guessing that if the phone was drawing 0 watts it had shut down the charging of the battery for one reason or another. Thoughts?
I have been using oem charger with my 2 anker batteries without any issues for almost over a month.
Hmm... just took a peak at my phone and it's actually stalled out at a reported 80% of battery capacity, and this is not on a QC 2.0 charger. This may be a battery issue as I believe battery percentages are calculated relative to battery voltage. I'll reach out to the manufacturer, TrendON, but not holding my breathe as it's been a few months since I purchased it.
Related
GSI Super Quality Desktop 3-In-1 Rapid Charger/Cradle/Data-Sync Docking Station For Sprint Samsung Epic 4G Cell Phone - Plus Slot For Extra Battery Charge - Powered By USB Or By Included AC Wall Adapter
http://www.amazon.com/GSI-Quality-D...sr_1_1?ie=UTF8&s=mobile&qid=1298676328&sr=8-1
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I purchased this product mainly because I was sick and tired of running down one battery and then having to switch without a way to charge the first one. So at the end of the day I would have two dead batteries. This can charge the battery in your phone as well as a spare. You can charge any size battery in the spare battery tray, which is really cool.
You can see from the image how it works. Because of the stupid design of the Epic4g charging port, it requires a cable to be plugged into the top of the phone. There are two led's, one red for the spare battery in the back and one blue for the phone. There are two ways to charge the phone, USB and a wall plug. The spare battery requires that the wall plug be used to charge. The phone will charge with either the wall plug or the USB cable.
The dock does not fit any extended case. The Epic naturally leans back in the slot, but it can be wiggled forward a good inch.
From the 10 minutes I have had and used this thing, I would absolutely recommend it. Please ask any questions you have.
does it come with the spare battery??
No. It comes with the dock and a wall charger.
I think you may have sold me on one. I have seen these before with an OEM battery but since I have Yoobao and my OEM battery already I don't need another. The price is right. thats for sure,
Yea, I figured it would be great for my needs. I dont need audio out or anything like that. Just needed something to charge the batteries while im not using them. Works flawlessly for that.
The blue charging LED on this thing is seriously the strongest LED I have seen. Huge blue circle on my ceiling.
I was browsing the web, and I found something interesting on Wikipedia:
Overcharge up to 5.2 Volts leads to the synthesis of cobalt(IV) oxide, as evidenced by x-ray diffraction
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So this basically means overvolting over 5.2V will make permanent damage to battery (if you look at the other reactions, the Cobalt Oxide can't be returned to original formula, so this will reduce battery LIFE)
Source
Normally phones have a built-in transformer.....
I believe they are talking about battery voltage. Lithium ion batteries are rated at around 3.7v but will have slightly over 4v when they are fully charged. Once your device charges to 100% it stops charging. You cannot overcharge a cell phone, laptop, etc. If you were to apply power directly to the battery contacts which is not recommended then you could overcharge. I belive what that is saying is if you went beyond the ~4v that a lithium battery is at when its charged to 100% and kept charging it up to 5.2v it would get damaged.
This is not talking about chargers which produce a nominal voltage of 5v. I've tested several USB chargers on a voltmeter and they read anywhere from 5.0 to 5.3 volts.
In this case, the USB charger is not so much a charger as a charging source.. the charging circuit is internal in the device and measures battery condition, temperature and voltage and will regulate down the 5V USB supply to the required charging voltage.
Attempting to increase the charging voltage source voltage from the generic USB levels to something higher will simply over-stress the onboard charging circuit to the point that it will fail due to excess dissipation.. and of course, there is no set of circumstances that says attempting to overcharge the battery directly at the terminals can possibly be a good thing
spunker88 said:
This is not talking about chargers which produce a nominal voltage of 5v. I've tested several USB chargers on a voltmeter and they read anywhere from 5.0 to 5.3 volts.
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its not a 2300 mah battery ..it is 3830mah for N5...
see this link in first post
plz check and reply .....
Did you mean this one?
http://www.aliexpress.com/item/Bran...TERY-FOR-LG-nexus-5-D821-D820/1778925662.html
This is the first time I've heard about this and it pretty much looks like a cheap chinese product.. Might even damage the Nexus 5.
In my experience...
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I wouldn't buy it. If you need more battery, check out Anker portable chargers. I haven't had a problem with mine after a year.
Sent from my Nexus 5 using XDA Free mobile app
milkytron said:
I wouldn't buy it. If you need more battery, check out Anker portable chargers. I haven't had a problem with mine after a year.
Sent from my Nexus 5 using XDA Free mobile app
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This one is very slim you can have it plugged in pocket with the phone.
Note that when using a battery to charge a battery you get two lots of 20% loss from the electronics in the external and internal so 5000mah becomes in reality about 3000mah, so you're going to get max time if you connect the external battery during times of peak power use of the phone, such as when sat using the phone so you get only one lot of 20% loss so 5000mah becomes more like 4000mah not 3000mah so if you plugged it when using your phone at times of when plugging a battery is not an issue then you're nearly tripling your overall times.
Also note that not external batteries are the same, a key one is if they are 1A or 1.5A or 2A input, the 1A input take a long time, usually overnight, to charge. The above one is 2A.
If I'm travelling I pair with a dual socket 2x2A brick like this one. So from any time I'm sat next to a power socket I'm making best use of the time charging 2A to the slim battery and 2A to the phone. That means you are not increasing your charging time at same time as tripling your battery time.
Hi
I have problem with charging on my U11 with the stock charger and my anker charger with QC3. If i use the normal ports without QC3, I can get 5v and almost 2A.
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But on the voltage bumps up to 7.5v, the current drops drastically to 0.1-0.3a and it wont charge to 100% overnight. I am thinking my phone is having problem as it behave the same on 2 chargers. Any thoughts?
(The picture shows higher current because my phone is on and camera app is running. If phone is off, current is 0.1 to 0.3A)
If the battery is near full you won't get full power. It ramps down to prevent over charging. QC3 is dynamic charging and uses a negotiation routine.
Beamed in by telepathy.
shivadow said:
If the battery is near full you won't get full power. It ramps down to prevent over charging. QC3 is dynamic charging and uses a negotiation routine.
Beamed in by telepathy.
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While what you said is indeed true, that's not exactly the case the OP is experiencing. I say this because he won't charge to full even overnight. Sure, 99% to 100% takes slightly longer, but I believe it's definitely under 5 minutes.
OP, let me share my experience. I have one original HTC charger, one non-original HTC branded charger (half the price of an original, I don't care if it's a fake as long as the quality holds up), and a Xiaomi powerbank that supports two-way QC3.0 (meaning it quick-charges devices but can also be quick-charged itself).
1) The original charger and non-original both work perfectly, quick-charging my HTC U11.
If I charge this Xiaomi powerbank with a normal charger (5V/2A), it also quick-charges my HTC U11 almost as well as the wall chargers.
2) But, if I quick-charge the Xiaomi powerbank itself with a QC3.0 charger (18W), such as the two wall chargers mentioned above, then I have the same issue as you- namely that the powerbank becomes unbearably slow in charging the U11.
3) The way to fix this is to have the powerbank use up all its power then be recharged by a normal charger as in 1). Another way is use the powerbank to charge a normal device, one that doesn't use quick-charge. In both these cases the duration must be for over 2 hours, after which I suspect the "safety mechanism" of the Xiaomi will deactivate and make things normal. Obviously I'm not too happy with this powerbank so will be returning it shortly.
So OP you might wanna try something like charge your phone fully first with non-QC, and the same for your powerbank. Then try charging the phone again using said powerbank.
I have a gen 8 fire hd8 tablet that I have been using for a few years but the battery is dead on it now, lasts under 20 mins.
It is being powered by an in wall micro usb charger that was automated to charge it between 20-80% but because the screen is always on it flew through its charge cycles.
Leaving it on charge all the time is not safe (as my Dell laptop showed me this week where the battery swelled so much it burst the case open)
I opened it up hoping I can just disconnect the battery and power it via the charge port but unfortunately it boots to the Amazon logo and then dies.
Is it possible to maybe wire 5v from the USB cable directly to the +/- of the battery port and leave the battery out?
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sd_dracula said:
I have a gen 8 fire hd8 tablet that I have been using for a few years but the battery is dead on it now, lasts under 20 mins.
It is being powered by an in wall micro usb charger that was automated to charge it between 20-80% but because the screen is always on it flew through its charge cycles.
Leaving it on charge all the time is not safe (as my Dell laptop showed me this week where the battery swelled so much it burst the case open)
I opened it up hoping I can just disconnect the battery and power it via the charge port but unfortunately it boots to the Amazon logo and then dies.
Is it possible to maybe wire 5v from the USB cable directly to the +/- of the battery port and leave the battery out?
View attachment 5745091
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Hello. Yes You can power it thorugh a 5v phone charger but You have to take apart the electroic board of the battery and apply the 5v where the battery terminals were connected to its electronic board. However on my fire HD10 9th generation i encounter a problem: if there is a power outage, i can turn on the tablet afterwards, only if i manually disconnect and reconnect the connector You show in Your photo. i did not find a workarround this. maybe a button press combination would solve the issue but i did not figure it out yet.