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| The Following User Says Thank You to ossipena For This Useful Post: | ||
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2010-05-20
, 20:46
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Posts: 1,729 |
Thanked: 388 times |
Joined on Jan 2010
@ Canada
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#12
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this normal case happens to me when i change the battery,
if my battery is @ 50% and i turned the phone off to replace the battery, it shows 50% to 0% (which is normal).
but i do agree that the 12$ battery (made in Hungary) is cheap in performance. it drains and heats up 30%-50% faster than the genuine one (the battery that comes with the phone in the box).
I have 2 genuine (from my 5800xm and n900) and one cheap. I'm looking for another genuine battery for my 5800xm.
if my battery is @ 50% and i turned the phone off to replace the battery, it shows 50% to 0% (which is normal).
but i do agree that the 12$ battery (made in Hungary) is cheap in performance. it drains and heats up 30%-50% faster than the genuine one (the battery that comes with the phone in the box).
I have 2 genuine (from my 5800xm and n900) and one cheap. I'm looking for another genuine battery for my 5800xm.
__________________
if i did help you, just click "Thanks" on the lower right of my post. thanks!
"The best way to break a Spell is to prevent it from being cast in the first place"
N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
if i did help you, just click "Thanks" on the lower right of my post. thanks!
"The best way to break a Spell is to prevent it from being cast in the first place"
N900: 1000/1150mhz; sampling_rate 15; up_threshold 150000;
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2010-05-20
, 20:47
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Posts: 577 |
Thanked: 699 times |
Joined on Feb 2010
@ Malta
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#13
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Originally Posted by ossipena
BS this mister..
source,please. I call a big pile of bs on this.
http://www.nokia.com/NOKIA_COM_1/Abo...nal_screen.pdf
Safety circuits and whatnot..
Originally Posted by ossipena
Do you actually own a fake battery? This is what happens. Original battery shows percentage normally. Switch battery to fake one. Battery stays on for 2-8 hours depending on usage on 100% and then suddenly: Battery Low. Insert original battery again. Battery percentage drains normally. Insert fake battery: 100% to 0% in seconds. Do you see a pattern here?
the percentage measurement is almost impossible (and it isn't accurate) so there is no way battery meter could show correct readings if using two batteries that have different specs, same problem could be with 2 authentic ones from different batches.
e: n900 apparently tries to calibrate the battery meter itself, switching battery messes things up because the meter isn't for the battery inside but for the battery not there...
Last edited by pantera1989; 2010-05-20 at 20:50.
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2010-05-20
, 20:51
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Posts: 3,159 |
Thanked: 2,023 times |
Joined on Feb 2008
@ Finland
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#14
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Originally Posted by pantera1989
sorry, it was the biggest pile of bs since months in here
BS this mister..
http://www.nokia.com/NOKIA_COM_1/Abo...nal_screen.pdf
Safety circuits and whatnot..
safety circuits affects only to users safety and batterys physical condition.
e: zero facts, I am impressed....
ee: and there is simple explanation to the fact that cheap batteries dont last as long: cheap = saving from somewhere, probably with raw materials. worse materials=less mAh=shorter battery duration.
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Last edited by ossipena; 2010-05-20 at 21:02.
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2010-05-20
, 21:09
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Posts: 577 |
Thanked: 699 times |
Joined on Feb 2010
@ Malta
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#15
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Originally Posted by ossipena
My primary source is 2 guys that repair cellphones. And the extra fake battery I bought for my N95 did this too. Anyways here's a review:
sorry, it was the biggest pile of bs since months in here
safety circuits affects only to users safety and batterys physical condition.
e: zero facts, I am impressed....
ee: and there is simple explanation to the fact that cheap batteries dont last as long: cheap = saving from somewhere, probably with raw materials. worse materials=less mAh=shorter battery duration.
Can't fault eBlink for fast shipping, however item arrived without any additional packaging (shipped lose in envelope) which raised my suspicion. Turns out the battery shipped was NOT an original BL-5J battery as advertised, it was a clever fake, holding significantly less charge than the original battery (between half and 2/3) and also fails to report its discharge properly. It does not slowly discharge and then prompt low battery warning, rather it shows as 100% charge until suddenly the device powers off with little to no warning.
NOT HAPPY.
I have nothing against 3rd party batteries when they are sold as such, however I like to make an informed decision and in this case I would only have purchased an original battery.
For a third-party battery, given the above information PRIOR TO PURCHASE, and not passed off as an original, it might be acceptable.
Don't believe me if you don't want to. But the facts are there. And this has nothing to do with how much the battery lasts. I am very happy with that. The battery rarely dies on me, so I rarely use the fake one and keep it only as an extra. But the issue here is that the battery doesn't show the correct percentage. I told you why. Somehoe it is BS..
Buy a fake battery just for the kicks. I got mine for 6 euros. You will see what happens.
Last edited by pantera1989; 2010-05-20 at 21:12.
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2010-05-20
, 21:14
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Posts: 5,795 |
Thanked: 3,151 times |
Joined on Feb 2007
@ Agoura Hills Calif
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#16
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I've never seen a cheap battery from Hungary -- all mine come from Hong Kong and work fine. I don't distinguish my cheap ones from the real one, they all seem about the same to me. I haven't had any significant mishaps with the ones I bought for my N800, N810, or N900. Except one battery I got for free with a charger fit too snugly into the N800.
Edit: But readings might be erratic at times -- I don't watch that closely.
Last edited by geneven; 2010-05-20 at 21:17.
Edit: But readings might be erratic at times -- I don't watch that closely.
Last edited by geneven; 2010-05-20 at 21:17.
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2010-05-20
, 21:29
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Posts: 466 |
Thanked: 180 times |
Joined on Feb 2010
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#17
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Originally Posted by geneven
i do: the hollogram. the real one is very elaborated. the other one is not.
I've never seen a cheap battery from Hungary -- all mine come from Hong Kong and work fine. I don't distinguish my cheap ones from the real one, they all seem about the same to me. I haven't had any significant mishaps with the ones I bought for my N800, N810, or N900. Except one battery I got for free with a charger fit too snugly into the N800.
Edit: But readings might be erratic at times -- I don't watch that closely.
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2010-05-20
, 21:41
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Posts: 840 |
Thanked: 823 times |
Joined on Nov 2009
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#18
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Originally Posted by ossipena
I see thanks for the info.
the percentage measurement is almost impossible (and it isn't accurate) so there is no way battery meter could show correct readings if using two batteries that have different specs, same problem could be with 2 authentic ones from different batches.
e: n900 apparently tries to calibrate the battery meter itself, switching battery messes things up because the meter isn't for the battery inside but for the battery not there...
can I ask how it messes things up, what is misread?
I can understand that the percentage can be wrong if it assumes the wrong maximum charge based on a previous battery but surely this should not have this effect on the rate at which it loses charge. zero will still be zero and anything inbetween should just be the same, right? even if we assume that the battery drains faster shouldn't the second derivative still be almost the same? why does it drop like this?
Gabby Just to be clear it rapidly hit zero before I changed my battery, not during the change. it didn't take me an hour to change it :P
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2010-05-20
, 21:51
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Posts: 5,795 |
Thanked: 3,151 times |
Joined on Feb 2007
@ Agoura Hills Calif
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#19
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Originally Posted by clasificado
Good point, mine are mostly fake. Good thing they seem to work perfectly, except possibly for unreliable readings. I am pretty much on automatic with regard to batteries after years of using cheap ones. When the battery looks low, I switch. Takes less than ten seconds. I have never had any smoking or swelling batteries.
i do: the hollogram. the real one is very elaborated. the other one is not.
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2010-05-20
, 22:49
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Posts: 145 |
Thanked: 80 times |
Joined on Jan 2010
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#20
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Originally Posted by pantera1989
No thatr's not true. The cheap batteries are good as extras. The problem is that Nokia implements a kind of circuit so that it stops charging when it is full, battery shows proper percentage etc... These fake batteries do work, but do not have this kind of circuit.
Like I said good in case the original battery is drained, but keep as an extra. Mine does this too.
Originally Posted by ossipena
I am an EE with a background in power systems engineering, and I call NOT BS on what pantera said. The lithium-ion battery chemistry does not take abuse (overloading, overdischarge, under-voltage, charging too fast, out of temperature bounds) very well. These conditions damage the cell, and the battery fails quite violently. The protection circuitry is there to turn off the battery if it notices the conditions before damage occurs.
source,please. I call a big pile of bs on this.
With a cheap battery, I would not be surprised that the protection circuitry is the first thing they cheap out on.
| The Following User Says Thank You to cyeung For This Useful Post: | ||
e: n900 apparently tries to calibrate the battery meter itself, switching battery messes things up because the meter isn't for the battery inside but for the battery not there...
Want to know something?
K.I.S.S. approach:
wiki category:beginners. Browse it through and you'll be much wiser!
If the link doesn't help, just use
Google Custom Search