MI4C Battery Replacement: Where to buy?

[asurus]

Hello there I think my battery is damaged, becouse my phone switches off with 5-15% left (so i do calibrate, but doesnt help) and when I charge it, the charging starts from 14% instead of with 0.
So I decided to replace my battery. I know that I have to the BM-35 But where can i buy and get really a original?
I found this some on ebay and aliexpress, but i am not allowed to post here....
For exeample i found one on aliexpress with a cooling copper, is that usefull?
Thanks in advance for your Help.

 

[djtutis]

Only on dragon-tt I've found original parts of xiaomi phones...

Sent from my Mi-4c using Tapatalk

 

[itsignas]

Hello, I have exactly same problem! Same percentage, turns off at ~13-15%, then if I plug to charge it shows 14% everytime! I would also know if it's battery or something more related. I'm using mi4c for ~7 months now. Glad i'm not alone with this problem.

 

[asurus]

Which Rom?

Which Rom you use and do have only use your quickcharger (the original)?
Edit: I ask about the charger, because i read in anohter forum, that the quickcharge isnt good for the battery lifetime. I have the phone for more than a year and use the quickcharger only for every third or fourh charging. Do you use everytime?

 

[itsignas]

Which Rom you use and do have only use your quickcharger (the original)?
Edit: I ask about the charger, because i read in anohter forum, that the quickcharge isnt good for the battery lifetime. I have the phone for more than a year and use the quickcharger only for every third or fourh charging. Do you use everytime?

Yes, used original quick charger, and USB. Using Ressurection Remix 5.8.0 (7.1 Nougat), but was getting problem with MIUI too, but shut down at 7%, and start charging at 21%, i think it may be software problem.

 

[asurus]

I'm not sure whether it is a software problem. I have for last month the rom from team superluminal ( cm-12.1-20160617 ) and have never battery problems - only since the last 2 weeks. So i updated to the rom cm-13.1-20161231 (also superluminal) and the first round with a full battery works fine, no switch off at a low battery level. I work on the phone until it has only 3 percent and then i charged it. Maybe you try this rom? Nevertheless i think isn't a software problem. Because I read this at the forum from superluminal (sry i am not allowed to link here) - posted by morphic:

IMO using quick charger w/ mi4c it will destroy your battery even more, because it seems to get too hot while charging. High temperatures are known to cause damage for battery internal chemistry..
I have also noticed that using normal “slow” charger will make mi4c battery percentage to behave more sane.

Sooner or later i will buy a new battery

 

[itsignas]

I'm not sure whether it is a software problem. I have for last month the rom from team superluminal ( cm-12.1-20160617 ) and have never battery problems - only since the last 2 weeks. So i updated to the rom cm-13.1-20161231 (also superluminal) and the first round with a full battery works fine, no switch off at a low battery level. I work on the phone until it has only 3 percent and i charged it. Maybe you try this rom? Nevertheless i think isn't a software problem. Because I read this at the forum from superluminal (sry i am not allowed to link here) - posted by morphic:

Sooner or later i will buy a new battery

Used this rom. I think the same, I'm going to buy battery and try to keep it cool while charging. If you know some cheap websites for Europe, thank you!

 

[asurus]

I have orded from aliexpress, you can find some between 10 -15 Euro. Or ebay, there is a trader from spain and want about 20 Euro.

 

[itsignas]

I have orded from aliexpress, you can find some between 10 -15 Euro. Or ebay, there is a trader from spain and want about 20 Euro.

I think I would go for ali, i can wait 2-3 weeks for me, no big deal, I have power bank, but annoying, that it just shut's off. Thanks! Glad we are not alone with the same problem

 

[IcyGlacial]

I think I would go for ali, i can wait 2-3 weeks for me, no big deal, I have power bank, but annoying, that it just shut's off. Thanks! Glad we are not alone with the same problem

is that original battery?

 

[itsignas]

is that original battery?

I don't know if ali has leggit batteries, but look fine

 

[asurus]

is that original battery?

100 percent sure you could never I remember a case about fake samsung battery - selled from amazon.

 

[saor11]

Tried to get a replacement battery from the biggest seller of them on aliexpress. Got stopped twice at custom x-ray with post nl . Was getting it shipped to Ireland. Seller is refunding me and told me it was getting very hard to ship batteries at the moment.

 

[Karly Johnston]

100 percent sure you could never I remember a case about fake samsung battery - selled from amazon.

Not like Xiaomi uses top bin batteries in the first place. They wouldn't bother faking the bottom bin batteries Xiaomi uses.

 

[adamuadamu]

there are no original ones as spare parts to buy. just replacements
I've bought one off aliexpress from a seller with biggest positive feedback for BM35 batteries as my original was switching off at about 30%, used for about three months, but it's not very good now - it doesn't hold charge very well and I have had random shutdowns at about 20%, too.
Last weekend I've got annoyed and put my old original BM35 back and the phone holding significantly longer with similar patterns of usage. Unfortunately still getting shutdowns at ~15-20%. Also there are rumours claiming that avoiding QC chargers "cures" the battery in mi4c. So, if you're getting shutdowns at 5-15%, don't even bother spending 10$ for a non-original one, try slow charging first.

 

[asurus]

Also there are rumours claiming that avoiding QC chargers "cures" the battery in mi4c. So, if you're getting shutdowns at 5-15%, don't even bother spending 10$ for a non-original one, try slow charging first.

Slow charging, works for me

 

[adamuadamu]

Slow charging, works for me

could you tell us what kind of charger do you use? what power, ie. how many amperes?

 

[asurus]

I use two different Samsung Charger with: 1) 5Volt / 1A 2) 5Volt / 2A

 

[luthfi13]

I have the same problem where my device shut down early before 0%, and it happen to all custom rom i used, but i think the problem has gone now, i did clear all the chace and dalvik/ART, reboot the phone, charge untill 100% and calibrate with battery calibration.
I'm on RR 5.8.0 latest build.

 

[rtk217]

Just got the battery the poster is talking about, with a copper patch. its from a batch marked with the year 2014. The S/N is covered with the copper patch.
the battery cover plastic seems a bit scratched, like its a used battery.
I will replace the battery in the next couple of days and let you know.
For the mean time I got it for 11.5$, now its 14.5$