Database Users

always on power

Does it harm to have the device connected the whole day either to the power outlet or to pc with the USB cable?

No, it doesnt matter very much how much you charge an Li-Ion battery, though it is best to use it a bit. (just my thoughts though). Being on power all day long cant really harm the device itself.

First of all, why do you want to do that?
Anyway, as whizz said, not much harm will be done to your phone, but just make sure your screen is off. Although not a common problem, there are reports that you can get burn-in (is this the right word?) for LCD screen (eg you can shadow-y image on your screen for displaying something too long).

cos when I am at the office I can keep my pda connected to my laptop the whole workin day

If you just wnat to have your phone connected to your laptop, for whatever reason, you can disable the USB charging for your phone.

i think not harm

the battery is lithium ion and leaving it on will cause no damage whatsoever. Its charging circuit will stop charge when its full anyway.
Too many people still live in the stoneage regarding batterys and think its like the old Ni-cad batts which didnt have a charging circuit and could over charge.
Leave it in all day, all night and for an entire year. It will do nothing to damage it.

weel I was just worried for overcharging, but if the circuit stops the charging when battery if full, it's ok then

dannyoneill said:
the battery is lithium ion and leaving it on will cause no damage whatsoever. Its charging circuit will stop charge when its full anyway.
Too many people still live in the stoneage regarding batterys and think its like the old Ni-cad batts which didnt have a charging circuit and could over charge.
Click to expand...
Click to collapse
If they are from stone age, you must be from Mars. Old Ni-Cad battery DO have circuits that prevent over charge. As a matter of fact, if you were to be using normal (slow) charger, you do not need any circuit to stop the charge. You can't charge a battery with the same voltage if the battery itself already had the same voltage. Go dig up your old physics book and read on the chaper on electricity.
Anyway, the common `battery knowhow` on NiCad batteries is that they need regular discharge to keep it on top shape. This is due to the fact that NiCad battery has the 'memory effect' (or oltage depression) that will cause it to work on their normal working voltages that they got used to (eg when it is plugged into a charger). Do a google on this if you are interested on lengthy explaination.
For the current Li-ion battery, the memory effect has been relatively 'concurred'. However, this does not mean you can have it on charger 24/7. Li-ion has its own aging process which is dependant on their normal working temperature (the cooler the better). Hence, having the battery pluged-in 24/7 is not a good thing (eg notice the relative raise in temperature of the battery while being pluged-in?). Do a google on this aging process.

my jasjar is turn off when it get to 40% buttery power

my jasjar is turn off when it get to 40% buttery power , what can it be ? if i charge it it dosent turn off but without power charger it work just until 40% .
thanks in advance.

http://forum.xda-developers.com/showthread.php?p=1081974#post1081974

sometimes this is just due to topping up charges and there is not a "continuous" supply current in the battery at that 40% mark. I had it once but always top up whenever halfway or very low and never had problem, but a way to fix the glitch is to drain the battery and then fully charge it

Li-Ion batteries do not suffer from memory effect. I have read in several tech reports on Li-Ion technology that it is actually better to top up often, like a lead acid battery. If the battery goes into deep discharge conditions, this will potentially cause serious problems. Assuminb the protection circuits in the battery work, this shouldn't be an issue though.The main problem is that the cells oxidise and stop transferring the charge to the device. This starts as soon as they are made and can't be stopped. If the oxidisation between cells is bad enough, the only use you get is from cells one side of this barrier. The battery still reports charge because the other cells still have it but they can't be usedBottom line is that the battery is poor on the Uni and lasts less than a year.Get a new one from another source, Cameron Sinio or whatever they are called are usually good.

pug said:
Li-Ion batteries do not suffer from memory effect. I have read in several tech reports on Li-Ion technology that it is actually better to top up often, like a lead acid battery.
<...>
Get a new one from another source, Cameron Sinio or whatever they are called are usually good.
Click to expand...
Click to collapse
Yeah I always put it into charger cradle when driving home -- nice way to keep it topped up.
Recently my battery started to play up and I have ordered one from BatteryUpgrade.com - a Cameron Sino battery for £18.xx has arrived quickly but could not serve the purpose - was not charging and eventually totally discharged.
Also was not indicating charge properly - always 100% (the LED is still Amber, not Green as you would expect at 100%).
I wonder if anyone else has bought Cameron Sino branded batteries and experienced same effects: 1) always 100% indication in your software and 2) lack of ability to charge?

Universal is using Lithium Polymer (light weight), not Lithium ion (heavy weight) batteries.

The main differences between li-ion and li-po batteries are the recharge/discharge rates and the construction of the core. Li-ion batteries are "wet" cells where as Li-Po batteries are "dry" which makes them thinner and more rugged. The same precautions still need to be observed and the life of the batteries is still about the same. They start becoming unusable after 300 charges and only have 40% of charge after 500 cycles. The life of 3 years is from the date of production, being stored at 40% charge and at the appropriate temperature. They are better when constantly topped up to prevent the voltage of the cells from dropping too low as this promotes oxidisation between the boundries of the cell. If they are overcharged, lithium metal is produced which is also bad. Another problem is that if the cell voltage drops too low it can never be recovered meaning one knackered battery. I have looked into this quite a bit as my battery has started shutting off at 60%ish, after 10 months of use which is pretty fair. I only expect batteries to last a year anyway. Good excuse to get a higher capacity battery in my opinion. I have used a Cameron Sino battery before in my Alpine and had those reporting issues for a few weeks and they dissappeared almost overnight. Don't know why but hey, isn't modern technology great?

Interesting. Thanks for you info. No wonder battery is not under gaurantee!

EastExpert said:
Yeah I always put it into charger cradle when driving home -- nice way to keep it topped up.
Recently my battery started to play up and I have ordered one from BatteryUpgrade.com - a Cameron Sino battery for £18.xx has arrived quickly but could not serve the purpose - was not charging and eventually totally discharged.
Also was not indicating charge properly - always 100% (the LED is still Amber, not Green as you would expect at 100%).
I wonder if anyone else has bought Cameron Sino branded batteries and experienced same effects: 1) always 100% indication in your software and 2) lack of ability to charge?
Click to expand...
Click to collapse
Yes, I've had 3 Cameron Sino batteries that all reported 100% regardless of charge level. Can't remember if the LED ever went green with them, or not, I'm afraid. Obviously, they all went back for refund.
Cheers,
Steve.

I got a CS battery and it started to expand, cracking the casing and seeming rather dangerous. I emailed the seller and it was replaced in 24 hours. He asked for theold one sent back so the factory could analyse it.
I had to dump the replacement recently because it wasn't giving the Uni enough current to complete a hard reset and was lockingup the device during 3G data and a call.
All in all I think 2 bad ones is enough, I will stick to the one that comes with the Uni and keep a USB cable curled up in my pocket =)

[Q] Non-Removable Battery novice idea

Hi Guys,
I'm new to the LG G2; so new I don't even have it yet. It's coming from Sprint soon to my doorstep. This will be my first non-removable battery device so I'm thinking and thought about this: What if while the phone was on the charger, there was some kind of a mod to bypass the battery and go straight to powering the phone? Then, it wouldn't degrade the battery and the lifespan of the battery would increase. Driving in our cars or sitting at home would just stay plugged in and not wast battery longevity. Pie-in-the-sky? Probably so, but I had to just put it out here to find out what folks that certainly know more that I, have to say.

Every modern piece of technology does that already.
It's not that charger that is causing damage to the battery. It's the charging itself.

Yes, sir, that is what I am saying also. So, what I am wondering is, is there a way to stop the charger from charging the battery, but still let it supply power to the device so the device works - basically bypassing the battery?

Idk i still charge my battery over night.
Sent from my LG-D800 using Tapatalk

The phones coming out now-a-days sometimes have some work-arounds implemented to help alleviate this condition. Some of them will switch off charging at, say 95-99% of capacity instead of charging to completely full. Others will charge to a certain high value and then switch to battery only for the first 5% or so and then start charging again.
Also, FYI, the back cover is removable on this phone if you pry where the hole created by removing the microSIM is. Supposedly it comes off rather easily. Now I know removable back and removable battery are two different things but it is at least looking up!

Anyone tried wireless charging ?

Anyone tried wireless charging on DT2 or MXF ? And how was the experience ?

Works, nothing special - overnight charge from 1% to 100%

It works, but many of us have problems with the Qi charger disconnecting charge at 100% and then reconnecting after about 5% has drained. Motorola is looking into it. I may be picky on which Qi charger you use.

Maybe I did not notice this problem - as I put the phone on charge in the evening, until the next morning I take it to work.
I use cheap qi charger from ebay - ~$2.5

Use a ravpower qi charger every night, no issues, phone comes off 100% full, cool to the touch. I know some units I've tried with my Maxx back in the day kept it warm through charging.

007shark said:
It works, but many of us have problems with the Qi charger disconnecting charge at 100% and then reconnecting after about 5% has drained. Motorola is looking into it. I may be picky on which Qi charger you use.
Click to expand...
Click to collapse
Hm, I haven't had this issue yet. I use a cheap generic three coil Qi charger. Is the issue just Qi or PMA chargers too? Because I was looking at buying another but this issue would be a little annoying to me.

007shark said:
It works, but many of us have problems with the Qi charger disconnecting charge at 100% and then reconnecting after about 5% has drained. Motorola is looking into it. I may be picky on which Qi charger you use.
Click to expand...
Click to collapse
Exactly how it should work to prolong battery life. Keeping any battery (especially lithium) full charger for long period of time will significantly decrease its capacity.

My phone gets very warm wireless charging. I prefer fast charge
Sent from my XT1585 using XDA Premium 4 mobile app

Zeljko1234 said:
Exactly how it should work to prolong battery life. Keeping any battery (especially lithium) full charger for long period of time will significantly decrease its capacity.
Click to expand...
Click to collapse
Never had a problem with that in the past even with wired chargers. I don't think in recent phones that there is actual current on the battery at all times past 100% whether charging wirelessly or wired. I'm pretty sure it goes into a maintenance mode, but it will still show charging on the display which is the important part. That is important if you use it on your nightstand as an alarm clock with wireless charging. My Sony Z3v had no problems staying in a charge state even after 100% but my Turbo 2 does not which causes it to disconnect. It will reconnect after it loses about 5%. If I don't have it silenced, it will wake me up when it reconnects. It also affects any tasks you have programmed to happen when it is charging.
From my understanding, the first Turbo did not have this problem. I think it cropped up from the inclusion of the powermat charging or maybe something related to the 810 processor. Anyway, just waiting for a definitive answer from Moto.
---------- Post added at 05:54 PM ---------- Previous post was at 05:48 PM ----------
Xelios029 said:
Hm, I haven't had this issue yet. I use a cheap generic three coil Qi charger. Is the issue just Qi or PMA chargers too? Because I was looking at buying another but this issue would be a little annoying to me.
Click to expand...
Click to collapse
Read the thread at the Moto Support Forums. https://forums.motorola.com/posts/215aa2bb51
It doesn't seem to affect everyone which may mean it is more dependent on your charger.

damkol said:
Maybe I did not notice this problem - as I put the phone on charge in the evening, until the next morning I take it to work.
I use cheap qi charger from ebay - ~$2.5
Click to expand...
Click to collapse
ahahahahhaha.....it's really cheap !!!:laugh::laugh::laugh:

RGDROID said:
Use a ravpower qi charger every night, no issues, phone comes off 100% full, cool to the touch. I know some units I've tried with my Maxx back in the day kept it warm through charging.
Click to expand...
Click to collapse
Have any Qi charger brand to propose ?

I'm using a Samsung Qi puck - not the newer round plastic one, but the older more squared soft-touch one. Works great, I don't have the 100% disconnect issue.

I use the tylt qi charger the desk top one so my phone is sitting at a 60 degree angle. It works great no issues and every morning my phone is at 100% and cool to the touch

This all sounds encouraging. I think it would be helpful if people could also add a few common notes:
charger / model
any case they have on the phone (or not) when using a Qi charger
whether the phone must be in a certain orientation (e.g., horizontal vs vertical) to charge
whether the phone is at 100% - and stays there after a charge
whether the phone is cool / warm / hot once charged
A cleaned up list developed from this would be a good resource for the user community

Tylt works great phone gets warm. Itian charger is cheap from Amazon but is very finicky.
Sent from my XT1585 using XDA Premium 4 mobile app

Really, Zeljko?
Zeljko1234 said:
Exactly how it should work to prolong battery life. Keeping any battery (especially lithium) full charger for long period of time will significantly decrease its capacity.
Click to expand...
Click to collapse
Uhm, that's one of the sillier things I've read today.
If it drains to 5% it's not terribly useful as a charge system regardless.
A charge controller chip is supposed to be designed to PREVENT the problem you just described.
Each charge cycle, regardless of it's form shortens the life of the battery, period. If you charge it up and then let it deplete it like that, you're damaging it as much as if you left it charging.
You kind of need to leave the stupid thing plugged in or in some wireless charge hysteresis loop so that the device isn't drained. In light of the charge system being supposed to keep the battery out of the loop until it needs to charge it again (some threshold below 100%) it shouldn't MATTER if it's "plugged in" and the device won't be pulling from the battery.

madscientist_42 said:
Uhm, that's one of the sillier things I've read today.
If it drains to 5% it's not terribly useful as a charge system regardless.
A charge controller chip is supposed to be designed to PREVENT the problem you just described.
Each charge cycle, regardless of it's form shortens the life of the battery, period. If you charge it up and then let it deplete it like that, you're damaging it as much as if you left it charging.
You kind of need to leave the stupid thing plugged in or in some wireless charge hysteresis loop so that the device isn't drained. In light of the charge system being supposed to keep the battery out of the loop until it needs to charge it again (some threshold below 100%) it shouldn't MATTER if it's "plugged in" and the device won't be pulling from the battery.
Click to expand...
Click to collapse
You're talking like battery expert. Well, maybe you're. Then contact those guys and tell them they're wrong
http://batteryuniversity.com/learn/article/lithium_based_batteries

I picked up 3 Samsung qi chargers at 6 quid each on offer on Amazon (UK). They work very well although they are more a convenience thing rather than a method of charging. I use one at work. One in the bedroom and one next to the Xbox great for the work desk to keep the device topped up and frees you up from plugging and unplugging constantly BUT.... It takes absolutely ages to charge so you dont go expecting to be dumping your cabled chargers. I use the work one most of the time as I'm out and about a lot and its very useful to be able to just grab the phone without unplugging and placing back on the pad when at the desk. The turbo charger gets used at home more coz in more likely to plug in to that and jump in the shower knowing that I'll have a nice reserve of power for the pub so yes they work as advertised and work well great as a trickle charge device when you ain't in a rush. If anyone is interested ping me and I'll spend some time on giving more detailed stats such as charge times from 0% and model number of the devices I use. Away for work at the mo so probably the weekend
Sent from my XT1580 using Tapatalk

Raynic
I bought the Raynic Orchard I. It charges the phone just fine, but I noticed that if the phone wants to wake up because it senses movement, it detaches and reattaches to the charter, which gets very annoying. I moved the phone to an angle where it couldn't see me (but I could see it; sensors were under my monitor stand but the rest of the phone was sticking out) and everything went smoothly after that.

Verizon QI charge stand, Verizon case, have to charge upside down
To charge our new Turbo Droid 2 in a Verizon QI stand with the Verizon case on it, the phone must be upside down. It's OK if out of the case. We have a car QI 'base' which it won't charge in either; probably exact same issue, whatever that is. Any ideas appreciated!
jdmba said:
I bought the Raynic Orchard I. It charges the phone just fine, but I noticed that if the phone wants to wake up because it senses movement, it detaches and reattaches to the charter, which gets very annoying. I moved the phone to an angle where it couldn't see me (but I could see it; sensors were under my monitor stand but the rest of the phone was sticking out) and everything went smoothly after that.
Click to expand...
Click to collapse

Is wireless charging good for your battery?

The thing causes my S8 to heat up, even when I turn off the fast option, more so than fast wired charging. Is it really good for my battery health when the phone is heating up for the entire two or three hours on the charger?

with the official samsung one that has a fan?

The phone will stop charging automatically if it thinks the temperature is not comfortable.
Do not stress over things that are mentioned in the manual, inductive charging will generate more heat than a wire, but the phone is more than capable of managing the process and stopping if things get too hot.
And no, the temperature isn't going to get high enough to damage your battery. (Unless you are using unauthorized wireless chargers / fakes that can cause the actual metal casing to heat up, google this).

I too had this question back when I bought my Wireless Charger for my S7. Interesting to get more feedback from the others. E.g. Does it shorten the battery life quicker considering it heats up the battery more than on cable.

I've wireless charged my s7 since I got it and also wireless charge my s8. I've also added wireless charging to an LG G3 and G4. IMO it does not degrade the battery and fast. The way I look at it, it saves the charging port from 100's maybe 1000's of plugs/unplugs. It's also a point of device failure, so from that perspective, it's better. Again, IMHO.

notice it too.

How about if you introduce the extra variable of putting the thin metal thingies for magnetic car mounts between the phone and the case? Does that change the situation?

Another variable is a case, which can add to heat build-up. Overall, I have seen nothing definitive that suggests that heat won't adversely effect battery life. Notwithstanding the money companies make selling QI chargers.
Sent from my SM-G955U using Tapatalk

Guitarboarder28 said:
with the official samsung one that has a fan?
Click to expand...
Click to collapse
Well the fan is for the charger itself isnt it?
Sent from my SM-G950F using Tapatalk

AB__CD said:
Well the fan is for the charger itself isnt it?
Sent from my SM-G950F using Tapatalk
Click to expand...
Click to collapse
I believe its to cool the phone

The fan in the authentic Samsung Desktop charger only activates if fast wireless charging is turned on in the phone.
The fan is to cool the phone.
I use the Samsung desktop stand but usually just normal charge it to which apart from typical heat being discharged I've not experienced any other issue.
I do not use a case.
There is opinion that constantly using Fast Charging can reduce the batteries condition over time. Wether you believe this is personal opinion. I've only Fast charged maybe 2-3 times if I've needed a quick boost of juice.

I noticed this too when I put my new S8+ on the wireless charger built into my truck. This was the first time I tried it so I wasn't sure if the phone getting hot was a normal thing or not

Dark5tar said:
I too had this question back when I bought my Wireless Charger for my S7. Interesting to get more feedback from the others. E.g. Does it shorten the battery life quicker considering it heats up the battery more than on cable.
Click to expand...
Click to collapse
Hi, the phone can handle it if it gets too hot during wireless charging.
Always be assured since that the electric current of wireless charging is 1A, which is lower than the current for wired charging 1.6A. That's to say, it creates less heat while charging. So actually the wireless charging helps prolong the longevity of your lithium-ion battery, except for the longer charging time.
Besides, only semiconductors that flow through current could produce heat (such as your phone's cover), the lithium-ion battery doesn't have current go through, so it's safe from the heat.

I only wireless charge in my car. My dash mount is setup for during the warmer months I will have the the AC it vent blowing cool air directly on the back of the phone. If I don't do this, I get the wireless charging pause error caused by the heat sensors.

AB__CD said:
The thing causes my S8 to heat up, even when I turn off the fast option, more so than fast wired charging. Is it really good for my battery health when the phone is heating up for the entire two or three hours on the charger?
Click to expand...
Click to collapse
Fear not, the phone battery doesn't generate heat itself, the smartphone is actually smart enough to protect itself from the heating generated by the wireless charging unless you put it under the extreme heating weather, so the phone should be safe from the heat.