Dear Brothers,
I've bought a brand new battery pack for my magician a month ago, initially everything seems find. Until one day I found that my magician felt a little bit hotter than usual during charging. I noticed that the battery indicator shows at 80% like forever. Never increase even after few hours charging. it stop at 80% and the battery is a bit warm. Why this happen? TQ
You have a damaged battery pack (you may even notice it starting to swell slighty). This is a hazard for either a fire or explosion later on. The possibility existed that you either shook or dropped the battery pack. These units 'fast charge' to 80%, then 'trickle charge' to 100%.
If your pack isn't labeled 'dynapak', then you could have simply bought a generic brand (which wasn't assembled properly).
Try to charge with lower ampere below <500maH so it will charge slowly. You can charge with MP3 Player charger which have more lower Ampere.
Coba charge pake charger punya MP3 Player, biasanya ampere nya kecil. Lambat penuh tapi siapa tahu aja bisa sampe 100%
Related
Hi
All is in the title: my wife's spv m600's battery never charges when battery has been completely discharged; in other words, it is like dead (no light, no charge etc). But with a new battery, it works again. All batteries are then charging well except if it happens once that they are fully discharged. I have already bought 4 batteries in 8 monthes. Can it be the chargers, not sending enough current ? (300 or 500 mA, while 1A is written on the back of the phone).
Many thanks in advance if some of you gets any idea!
BR
yeah.. actually it's charger issue.. when the battery is completed depleted.. u'll need at least 1 A charger to recharge the battery..
another way u can try to jump start the battery by using 9 Volt battery..
I often hear that when batteries are fully charged, devices should be unplugged. I practice unplugging laptops when fully charged or removing their batteries. I think, this is also true for most, if not all, mobile devices.
As for the Nexus One, should it also be unplugged from AC or any sort of dock when it's fully charged? Do docks automatically stop charging batteries when they are full? How about AC plugs?
I think it's not the over-charging that might affect the phone but heat from the battery. Having said that I left mine charging through the night only last night and the phone was actually cold this morning (phone was turned off while charging).
any recharging circuit that doesn't have a drain/charge loop when charge is full should be considered defective.. my n1, g1, bb all do this. leave it plugged in to the dock all day everyday when i'm at my desk, and don't charge overnight. rarely dip below 75% battery
Lithium Ion Batteries have the technology to understand when they are fully charged and still plugged in. When the phone is fully charged and plugged in the battery stops the charge cycle. People seem to think that the batteries have the same issues they had when they first released but they do not. I leave my battery on charge all night [anywhere from 6-9 hours] and it does not even get warm. I have always done this with my cell phones and I have never had a battery dramatically lose life.
http://en.wikipedia.org/wiki/Lithium-ion_battery#Charging_procedure
That explains what you need. It mentions that you can take it off when it's fully charged but also mentions several times that the battery stops charging once it reaches it's maximum charge.
Hi all,
I bought a new battery for my HD2 which has 3.400 mAh. Unfortunately the HD2 does not seem to notice the higher capacity.
Battery.exe from htc testing tools shows "FULL (mAh): 12296". As all values are times 10 (like 786% battery right now) I read this as 1230 mAh battery capacity the device thinks to have.
How would I recalibrate the device so it recognizes the new battery capacity?
Thank you, Franky
P.S. I tried to search but found nothing I had'nt already tried. Most people suggest something like this:
1. discharge fully until the phone shuts down by itself
2. remove battery and wait ~1 minute
repeat 1) and 2) until the device shuts off within minutes after being switched on
3. charge completely with the phone OFF until the green light is lit
4. remove battery and wait ~2 minutes
which I tried at least 5 times. I even bought an external charger so the battery is 100% full when put into the device.
Is it a genuine battery, bought from a reputable dealer? I bought a ' genuine' battery from an Amazon seller which was a bad fake, got very hot and only have half the capacity it should have.
If you are using battery in WinMo then I thought there was little to do, in Android there are several tricks but essentially charging with the phone off should give you a full charge.
Have you tried using the phone until it switches off? It might be that you have the extra life but your software doesn't recognize it.
Thanks for your reply!
boomboomer said:
Is it a genuine battery, bought from a reputable dealer?
Click to expand...
Click to collapse
Dunno. All dealers pretend to be (the only) serios. But it's a German dealer /w good ebay ratings.
boomboomer said:
Have you tried using the phone until it switches off? It might be that you have the extra life but your software doesn't recognize it.
Click to expand...
Click to collapse
That's the issue. When the phone shuts down (unfortunately it does that silently, not like a Nokia) and I remove the battery (wait some time) and re-insert it it is at 50% and lasts a few hours more (BTW: doesn't work a 3rd time).
How to tell the software/phone it got a better battery?
BTW: It's WinMo 6.5.5
Thanks, Franky
The phone should only shut down when the battery reaches a certain voltage, or the battery shuts itself off to protect the cell. It sounds like your phone is working properly by turning off due to low voltage, but then when the voltage rises (when you rest it) restarting. The battery protector circuit would not allow it to start for a second time.
You can try using battclock to check your voltage, which should be 4.206 when fully charged and down to around 3.2 or 3.6 when empty. But I think you have a fake battery that simply will not contain that much power - it is a double thickness one, with a bulging battery cover required?
Hi boomboomer,
private talk, he?
Yeah, the battery is a double thick one with extra cover.
Battery.exe showed these values when I got 1% battery left:
MS percentage: 1%
PA percentage: 1%
ACR (mAh): 83 (i.e. 8 mAh)
1st dis_ percentage: 150%
V_MBAT (V): 3.742
after removing the battery and setting it in again after 5 minutes I got these values:
MS percentage: 47%
PA percentage: 47%
ACR (mAh): 5776 (i.e. 578 mAh)
1st dis_ percentage: 470%
V_MBAT (V): 3.747
Regards, Franky
If you notice the voltage reading stays the same for both instances, 3.742 V which isn't far off shut down value for the phone. What is changing is the current value, which if the voltage is constant means the battery resistance is dropping after you rest the battery for 5 mins, or letting the cell cool down and hence giving the impression that the cell still has 47% capacity - which it does not.
A high internal cell resistance means high temperatures and a very short life span, a genuine battery should have a fairly constant resistance and hence linear discharge.
Bottom line is your ebay seller did not send you a battery capable of providing 3400mAh, it may also not be safe to use in your phone in certain conditions e.g. a hot sunny day on your car dash may result in a breach of the cell membrane and even a lithium fire.
I would advise returning the battery for a refund and spend a little more for a genuine HTC extended battery from someone you trust.
Well, besides that I cannot send it back (it's dearer than to dump it) the battery shurely has more than 1230 mAh. From what I saw its somewhat about 1800 mAh (1230 + 50% battery left when re-inserting).
Only the HD2 does not recognize it.
Regards, Franky
I recently bought a used Huawei Nexus 6P on Swappa. It looks and works great, with one exception: When I quick-charged it (with its OEM quick charger) to 100%, AccuBattery reported:
Battery health: 27%
Estimated capacity: 940 mAh
Design capacity: 3,450 mAh
{From these numbers, it seems that Battery health = Estimated capacity / Design capacity}
By itself, that would make me think that it just needs a new battery. However, if after reaching 100% charge, I leave it plugged in, the "Estimated capacity" continues to rise for a period of time. (The charge stays at 100%, but the Battery health sometimes increases.) Once, the "Estimated capacity" rose to over 2,000 mAh before it stopped rising. This makes me think that the problem might be with the battery calibration, rather than with the battery itself.
If I use the phone until it shuts off, and then recharge it, the same thing happens again (although with different numbers).
How can I tell whether the problem is with the battery itself, the battery calibration, or the phone's charging system (on the motherboard?)?
To recalibrate the battery, should I stop charging it when it reaches 100%, or when its AccuBattery reported Estimated capacity stops rising, or ...?
Thanks.
HI All,
I have a new moto g7 power which supports fast charging.
I want to prolong battery life and maintain the battery for as long as i can.
The instruction booklet says to charge it with the fast charger supplied only.
From my research it seems that li-lon batteries prefer top ups and to be kept between 40-80%
Also I never realized that first charge should be all the way to 100% not sure if I did this, have I harmed the battery if I did not ?
as far as I know, lithium likes to be between 85% and 15%. anything below 15% and above 85% is potentially bad for the battery, assuming 3.7v is 0% and 4.2v is 100%.