Database Develop

Charging from PC - worth while?

Is charging our Kaisers from the PC ok? How much power does the USB provide to the Kaiser? Same as the standard adapter? I am asking this because I found no answer on the forum and I would prefer to load it directly from the PC every time rather than keep using the standard charger and putting it in the power outlet.

my advice for you to stop this option
because normaly we keep the phone connected to the pc for a long time and it makes the phone in charging mode all the time and iam sure that will make the battery dies fast
stop this option by disabling it from the battery options you can see it by clicking on the battery icon on the start bar
greetings

My phone has been plugged in to the USB at work all day, 5 days a week, for 5 months now. I can still get about 2 days out of the battery when I need to - for instance, after unplugging it each Friday at 5 I usually won't have to charge it until the same time on Sunday, the only time it generally does get plugged into the wall charger. I'm pretty sure my battery performance is still on a par with most people's - ie, not amazing, but quite livable with. It's certainly not showing any signs of harm from overcharging.

Boinng said:
My phone has been plugged in to the USB at work all day, 5 days a week, for 5 months now. I can still get about 2 days out of the battery when I need to - for instance, after unplugging it each Friday at 5 I usually won't have to charge it until the same time on Sunday, the only time it generally does get plugged into the wall charger. I'm pretty sure my battery performance is still on a par with most people's - ie, not amazing, but quite livable with. It's certainly not showing any signs of harm from overcharging.
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Same here.. no problems. I don't even know where my charger is.

I charge mine from the PC all day too, and it stops charging when its at 100%. The bottom line is this: a USB port delivers a minimum of 500ma at 5v, the wall charger is probably very close if not more than that. The charging circuit in the phone does all the work of converting the 5dc into a charging voltage/current required by the battery, usually ramping up and down. Theres no difference other than maximum current between a USB port and ANY 5vdc adapter.

Wall wart gives 5V/1A. USB at 5V/500mA will not harm your battery. If you're using the standard battery, USB charging is appropriate to keep it topped up.
RMD

Isn't the constant charging of the batter bad for it?
I mean you charge it use it for a while then hook it up again and so on, isnt it better for the battery if you wait until it says that you have to recharge it?

According to my BatteryStatus, my wall charger gives me around +500-600mA (depending on programs running) and USB 2.0 charging from the front port on my computer gives about +100-300mA (depending on what's plugged into the computer and program usage).

Insaneboy said:
Isn't the constant charging of the batter bad for it?
I mean you charge it use it for a while then hook it up again and so on, isnt it better for the battery if you wait until it says that you have to recharge it?
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That was a nicad battery issue lithium batteries do not have that issue.
-McMex

i think the point here is not if you charge it by usb or charger
for many people as they said it goes as well ok but it's an old advice used to be known that it's not good for your battery health to be on the charger all the time
also the same fact that it's always better to let the battery goes empty before you recharge it again some people have the sickness of recharging batteries when it's just gets 5 percent less , then they immaditaly start to recharge it again and this is a big mistake because in the long period the first levels of the battery start to die because they have never been used

mcmexican said:
That was a nicad battery issue lithium batteries do not have that issue.
-McMex
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Didn't know that.
Thanks.

haam1978 said:
the same fact that it's always better to let the battery goes empty before you recharge it again some people have the sickness of recharging batteries when it's just gets 5 percent less , then they immaditaly start to recharge it again and this is a big mistake because in the long period the first levels of the battery start to die because they have never been used
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Actually, its quite the opposite of what you say. If you let Lithium batteries discharge all the way, they will loose their capacity faster.
The following link will back up my claim:
http://batteryuniversity.com/parttwo-34.htm
Relevant quote: "Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns."

usb v wall charger
My kaiser
wall charger charges battery from flat (1%) in 1 hour
USB on PC takes 4 hours to go from 15 to 80%, only over night did it get to 100%.
I use wall charger everyday now.

axonn said:
Is charging our Kaisers from the PC ok? How much power does the USB provide to the Kaiser? Same as the standard adapter? I am asking this because I found no answer on the forum and I would prefer to load it directly from the PC every time rather than keep using the standard charger and putting it in the power outlet.
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i use the pc option especially when i am traveling and only have my portable. When using my portable, i plug my phone in to get a charge... i like this option as it saves me from having to lug around another adaptor as well as being able to charge my phone just off the batteries of my portable at any time,,,, good option

posted twice --- as usual being a post hog

It's fine. It just takes longer to charge, especially if you're transferring a lot of data.

With the lithium ion chemistry, it is very detrimental to the battery if you let it run down to empty all the time. The batteries do not like this at all and will exhaust much quicker this way. If you were to store the batteries, you should store them at 40% in a cool place as that would only lose 2% of life per year I believe. At 100% storage, you can lost 20% a year of life. A little reading at that battery university website goes a long way

johnny13oi said:
With the lithium ion chemistry, it is very detrimental to the battery if you let it run down to empty all the time. The batteries do not like this at all and will exhaust much quicker this way. If you were to store the batteries, you should store them at 40% in a cool place as that would only lose 2% of life per year I believe. At 100% storage, you can lost 20% a year of life. A little reading at that battery university website goes a long way
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So what happens when your battery that you leave stored at 100% loses 20% a year and a few years later it hits 40%?

Battery
haam1978: You are surely right for NiMh. But I don't know about Li-Ion. Time will tell. For now, I prefer to do it your way: discharge almost completely, BUT NOT TO 0%. Mostly to 5 - 10%. But the problem is that my stupid Windows doesn't report the life of the battery accurately ::- (. I got a Mugen 3000 Mah batt...
rotohammer & johnny13oi: Interesting website indeed. Unfortunately as I told haam, I can't get an accurate battery reading for this huge battery I got. Anyway, I'm still reviewing it ::- D.

rotohammer said:
Actually, its quite the opposite of what you say. If you let Lithium batteries discharge all the way, they will loose their capacity faster.
The following link will back up my claim:
http://batteryuniversity.com/parttwo-34.htm
Relevant quote: "Avoid frequent full discharges because this puts additional strain on the battery. Several partial discharges with frequent recharges are better for lithium-ion than one deep one. Recharging a partially charged lithium-ion does not cause harm because there is no memory. (In this respect, lithium-ion differs from nickel-based batteries.) Short battery life in a laptop is mainly cause by heat rather than charge / discharge patterns."
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100% correct.
On a side note, my kaiser will get fully charged way faster when connected to the wall as opposed to USB. (always connected to a desktop with a real big UPS).

[q] i'm battery murderer

So here's what happened:
I just got my hTC HD7, it had some juice alredy so I played around with it, when the battery got empty, I charged it. But my plug has a on/off switcher. I tripped over it and turned it off. This was the first time I charged the phone. What shall I do? I put the phone back in the box. Shall I get a new battery or charge the phone again? HHHEEELLLPPP!!!!

Just leave it to charge? Accidentally turning off the charger while the phone is charging doesn't do it any damage. I knock the plug loose all the time.

Tuskuno said:
So here's what happened:
I just got my hTC HD7, it had some juice alredy so I played around with it, when the battery got empty, I charged it. But my plug has a on/off switcher. I tripped over it and turned it off. This was the first time I charged the phone. What shall I do? I put the phone back in the box. Shall I get a new battery or charge the phone again? HHHEEELLLPPP!!!!
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A full charge for the first time can be interruped without issue, lithium-ion batterys do not carry a charge memory unlike older handsets where you did have to give a full charge from the outset.
To get the best life from your battery or spares try to do the following:
Try to keep the handset out of any heated environment (eg; a car on a sunny day with windows closed) as this could stress the battery and decrease the charge life.
Do not use another charger that could stress the battery with over voltage (keeping it plugged in after full charge with the regular charger will not affect the battery) the battery will degrage however if it were allowed to exceed the 4.20V/cell limit.
If storing a spare battery for an extended period of time it is recommended that the charge level is around 40% for optimum lifespan.
Hope this helps,
Creamy

was gonna start a new thread but this is a little related.
I am now seeing a good amount of 1500mAh batteries on ebay(link below), any thoughts?
http://shop.ebay.com/i.html?_trkpar...s&_sticky=1&_trksid=p3286.c0.m14&_sop=3&_sc=1
1600mAh: http://cgi.ebay.com/1600MAH-HIGH-CA...694?pt=LH_DefaultDomain_3&hash=item1e624427d6

creamy said:
Do not use another charger that could stress the battery with over voltage (keeping it plugged in after full charge with the regular charger will not affect the battery) the battery will degrage however if it were allowed to exceed the 4.20V/cell limit.
Hope this helps,
Creamy
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first off, thanks for that helpful tip on saving batter power. i just have a question concerning the above mentioned (quote) do computer/laptop usb ports supply the same voltage as the charger that came along with the phone? will it hurt the stock battery if i always use the laptop usb port to charge my phone?
thanks in advance

dapoharoun said:
was gonna start a new thread but this is a little related.
I am now seeing a good amount of 1500mAh batteries on ebay(link below), any thoughts?
http://shop.ebay.com/i.html?_trkpar...s&_sticky=1&_trksid=p3286.c0.m14&_sop=3&_sc=1
1600mAh: http://cgi.ebay.com/1600MAH-HIGH-CA...694?pt=LH_DefaultDomain_3&hash=item1e624427d6
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i have this ONE adn THIS

moonshines said:
i have this ONE adn THIS
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any improvement from the original one that came with phone?
thanks

dapoharoun said:
any improvement from the original one that came with phone?
thanks
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the first one seems to be the same as the stock battery but the second will surely get you through a day without charging with all phone features on(data,wifi as in everything) or a whole day of heavy calling and sms. but if there are only a select features turned on or on stand by mode roughly it will last you two - two and a half.

moonshines said:
first off, thanks for that helpful tip on saving batter power. i just have a question concerning the above mentioned (quote) do computer/laptop usb ports supply the same voltage as the charger that came along with the phone? will it hurt the stock battery if i always use the laptop usb port to charge my phone?
thanks in advance
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Seriously, c´mon guys, if the battery dies, just replace it, charge the battery how you want (partial charge is better for Li-based batteries than a full charge), also, HD7 stops charging the battery once it reaches maximum charge level, so if you keep it on charger, green LED will be on, but no charging is done, this is to prevent stressing the cells (cells are most stressed when on full charge and fully discharged). So no worries here .

Charging

I just got my xperia z, just wondering do i need to charge it for like 8 hours straight for the first time charge after draining its battery?
Also, will the battery overcharge if i accidentally leave it on the charger for extended periods of time?

I always find it best to follow what the manufacturer says, in this case:
Charge for 30 minutes before first use - after that, use untill drained and recharge till full - you're done. No "formatting" of the battery is needed, it's a thing of the past.
And no, the battery will not overcharge. If it could overcharge - they wouldn't make a charging dock for it. Modern batteries have a chip inside that measures their charge level and cuts the power when they reach 100%.

AW: Charging
Alvaris said:
I just got my xperia z, just wondering do i need to charge it for like 8 hours straight for the first time charge after draining its battery?
Also, will the battery overcharge if i accidentally leave it on the charger for extended periods of time?
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You can not damage the battery by leaving it on the charger. The first charge won't take 8 hours, after reaching 100% it is fully charged.

Ah shoot, what I did was slightly different than you said :/
I sorta drained the battery on first use, and it's currently charging and just reached 100%..it doesn't make much of a difference though, does it? or do i need to do some specific steps like to drain the battery all over again and recharge til full?

Alvaris said:
I just got my xperia z, just wondering do i need to charge it for like 8 hours straight for the first time charge after draining its battery?
Also, will the battery overcharge if i accidentally leave it on the charger for extended periods of time?
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NO need to charge it before using
however u don know wht s the battery level it s ok to charge it for 30mins But if the phone has more than 50% charge u don need to charge it at first use.
anyway if u didn do that like me and found ur battery has more than 50% charge thr s no problem at all However no problem if less than 50%
it s a smart device so thr s no over charge for its battery

Ah okay, then there should be nothing to worry about
thanks for the replies!

[Q] Battery lingo

In the process of charging my One for the first time. Read a little about how with new Li-ion batteries, you don't want it to go dead.
Now, this may be a matter of semantics, but if I let the battery run down the first time and the phone turned off, is that technically a "dead" battery? I would bet that if I tried to turn the phone on again, I probably could and there would be some residual charge left.
I'm charging the phone right now until full (with it off). Has anyone seen a 4+ hour charge time with the phone off?
ps. I'm charging it off b/c I have another phone I can use in the meantime.
Thanks.

Just don't try to over-empty the battery or leave it empty for days.

Yeah, the phone takes eons to charge. Make sure you're using the AC adapter to charge or it will take even longer.
Sent from my HTC One

A lot of the information out there for how to care for batteries is old or just plain wrong. It is hard to figure out what to listen to, but I was researching exactly what I should do to care for my battery last week and the conclusion I came to was:
It is good to run the battery down to 0 about once a month.
The battery will last longer if the temperature is kept lower, both for daily use and for the potential lifespan of the battery.
Batteries have a certain number of charge cycles, and one full discharge and recharge is one full cycle.
You are prevented from reaching dead 0 on a battery as a safety measure.
You are prevented from overcharging the batter as a safety measure.
If you wont use your phone for a long period of time, don't store it with no battery or a full battery.
The best way to treat your battery is use it, and charge it whenever you need to.
Hope some of that helps.

Phone is hot while plugged in and @ 100%

While at work, I leave my phone plugged in and charged at all times.
I don't have exact temperatures but I've noticed that it is warm the whole time. Anyone else notice this?

blazinazn said:
While at work, I leave my phone plugged in and charged at all times.
I don't have exact temperatures but I've noticed that it is warm the whole time. Anyone else notice this?
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Are you using the official charger?
Some aftermarket USB C cables can damage your phone or even fry it completely.
If you are using a standard charger, I'm more inclined to say your phone is getting warm because the battery has been charging. If you have hotspot on, that can warm your phone up quite alot too... Basically the more your phone is doing the hotter it can get (Bluetooth/wifi/hotspot etc)
FYI: charging to 80/90% will make your battery last alot longer too, if you plan on keeping it a few years. Charging to 100% is the fastest way to degrade your li-ion battery.
If you are rooted you can limit your charge to 90% but depends if you don't have access to a charger all day you might need that 100%.
Hope that helps.

Demolition49 said:
Are you using the official charger?
Some aftermarket USB C cables can damage your phone or even fry it completely.
If you are using a standard charger, I'm more inclined to say your phone is getting warm because the battery has been charging. If you have hotspot on, that can warm your phone up quite alot too... Basically the more your phone is doing the hotter it can get (Bluetooth/wifi/hotspot etc)
FYI: charging to 80/90% will make your battery last alot longer too, if you plan on keeping it a few years. Charging to 100% is the fastest way to degrade your li-ion battery.
If you are rooted you can limit your charge to 90% but depends if you don't have access to a charger all day you might need that 100%.
Hope that helps.
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Yes, using the official charger. I also failed to mention that I have a case on my phone. Not sure if that is contributing to it.
Is it because charging to 100% counts as a full cycle? I will admit that I'm not up to snuff on battery tech and what the best way to preserve the battery long term. From my past understanding, if you take your battery all the way down and then charge it to 100%, then that was a full cycle. More cycles = degraded battery over time.
Not sure if this still holds true for li-ion batteries today.
Edit: My thought here is to leave it on the charger whenever I can, thus minimizing the cycles I put on the battery.

blazinazn said:
While at work, I leave my phone plugged in and charged at all times.
I don't have exact temperatures but I've noticed that it is warm the whole time. Anyone else notice this?
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Click to collapse
blazinazn said:
Yes, using the official charger. I also failed to mention that I have a case on my phone. Not sure if that is contributing to it.
Is it because charging to 100% counts as a full cycle? I will admit that I'm not up to snuff on battery tech and what the best way to preserve the battery long term. From my past understanding, if you take your battery all the way down and then charge it to 100%, then that was a full cycle. More cycles = degraded battery over time.
Not sure if this still holds true for li-ion batteries today.
Edit: My thought here is to leave it on the charger whenever I can, thus minimizing the cycles I put on the battery.
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My suggestion is download accubattery, it will tell you your battery temperature and also it calculates the degredation and health of your battery. It will also explain how many cycles of wear you are adding to the phone.
Back in the old days with nickel cadimium batteries you needed to do the whole 0-100 thing, that was good for battery memory... But modern day lithium batteries actually are better being topped off and kept between 20-80% in an ideal world. So deep discharges and high % charges wear out your battery significantly faster... This is why electric cars often limit charge, by doing this they can extend the life of the battery cells quite dramatically.... but if you are upgrading yearly, don't worry about it.
Here is an article that will help you.
EDIT: try charging with and without the case and see if it gets hot, definitely cases can be an insulator. You can monitor temp in accubattery.
https://www.wired.co.uk/article/how-to-improve-battery-life-tips-myths-smartphones

The idea that there is a set number of charging cycles for a particular battery, and every time you charge the phone you use up one of those cycles regardless of how much it charges (ie a 10% charge and a 100% charge both use one charging cycle) isn't how modern cell phone batteries work.
As noted, it is best to not charge your phone to 100%, nor do you want to discharge your battery to 0%. It is best to charge it more frequently for a smaller amount of charge each time as well. So charging a phone 10% ten times is better for the better than charging the battery once for 100%.
Heat is also a huge problem with batteries and the hotter a battery gets, the shorter life expectancy it will have. So definitely look into the issue.
If rooted, there are a couple of Magisk modules that control charging. They usually will automatically pause charging if the battery gets too high of a temp. Once a preset time has passed, it will restore charging again. The idea being that the pause in charging will allow the battery temps to drop. You can also limit the battery max charge to another value other than 100% if you want. 80% max charge is suppose to be the sweet spot for battery longevity, but anything less than 100% is going to add life to your battery.

Just so you know the phone does not charge to 100% or allow you to discharge the battery completely. Your phone just shows that you are at 100% when charged as much as allowed and discharged as much as allowed when you reach 0% charge. The partial charge thing no longer has much of any effect since the phone is doing it for you already but the internet hasn't' caught up to that yet. These chargers do stop charging at full and your phone should not be warm if it's charged but unused. So... are you using while on the charger? That's not a great idea because it's going to kick it into charge over and over. The fellow above was correct about using proper cables, I'm not sure that's much of a problem anymore but there still may be some ringers on Amazon and elsewhere. You could also have something discharging the battery enough to get it to charge continuously or close enough to it to warm the phone up over time, a wake lock can do it for example. Those can keep the phone on charge enough to warm it up.
In general with charging it's going to be best to keep your charging and total cycles down because capacity loss during charging is a real issue due to physical deterioration and transfer of materials in the battery caused during the charge. You would be better served by allowing it to discharge at least somewhat and only charging as needed rather than keeping it plugged in. Since you're at work it should be fairly easy to plan your charging so that you'll be able to get through the day without the constant charge. Not saying wait until it dies and then charge, that would be inconvenient, just that you would get more life if you reduced your charge cycles.
No matter what your phone is getting warm something needs to be addressed if it's doing so when not used but plugged in. The charger should stop for long periods and the phone should be cool after the charge completes.