Hello, I read somewhere that the high-end Sandisk card takes a lot of power. Don't remember which one. Maybe Extreme 64GB, Extreme Plus 64GB or the Ultra Plus 128GB. Is this really true?
No. MicroSD's don't require to be powered themselves, they're not SATA drives that need to spin. Powering the SDcard would fry it...
What uses so much energy is the Indexingservice and Media services, which scan the entire card. The bigger it is, the longer it takes and thus the longer it has to consume an awful lot of charge.
Easily bypassed by dumping a .nomedia file in every folder in the main directory (Subfolders are automatically included) to tell it to skip that folder. Won't show up in any of the media apps libraries, but you can still open the files manually.
Agree, I have no issue with the 64gb extreme plus card I'm using. You need not worry about drain. Decision to buy should be more about justifying the cost vs getting a larger card. If you absolutely need top speed then there should be no question that the highest rated card is the one to get (SanDisk brand or another), but if not then your money is better spent on capacity or saved to be used elsewhere.
Sent from my SM-P900 using Tapatalk
Given the money we have already spent on our device, why not get the fastest one?
hajime_android said:
Given the money we have already spent on our device, why not get the fastest one?
Click to expand...
Click to collapse
That's certainly one reasonable perspective . . one that I share . . but truth be told I was more driven by the need for top performance than anything else.
ShadowLea said:
No. MicroSD's don't require to be powered themselves, they're not SATA drives that need to spin. Powering the SDcard would fry it...
Click to expand...
Click to collapse
MicroSD cards most certainly do require power. Flash storage takes significantly less power than harddrives, which is why solid state drives offer significant power savings for laptops.
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This is the pinout for a MicroSD card, VDD is the 3.3Volt power source needed to power the card.
http://en.wikipedia.org/wiki/Secure_Digital#Power_consumption
Wikipedia has some info on typical power consumption rates of SD cards. Accessing the memory card will use power, so part of the power used by indexing service and media service does in fact go towards powering the MicroSD card. When the SD card is not being accessed, it still consumes power, but far less than when reading or writing data.
Related
Does anyone know of a portable/emergency charger that would be suitable for use with a TC?
I've seen a few available but none of them seem to be specifically for HTC devices...
Here's a few to give you an idea of what I'm thinking of:
http://www.thinkgeek.com/gadgets/travelpower/9b80/
http://www.thinkgeek.com/gadgets/travelpower/917b/
Thanks.
Check this one out.
http://www.expansys.com/p.aspx?i=171891
turcomora said:
Check this one out.
http://www.expansys.com/p.aspx?i=171891
Click to expand...
Click to collapse
Nice find!
Yeah, wasn't aware that there was an official device on the way. Thanks
Frustratingly, no dimensions are specified (only the weight). Has anyone found this info anywhere?
- Julian
JulianL said:
Frustratingly, no dimensions are specified (only the weight). Has anyone found this info anywhere?
- Julian
Click to expand...
Click to collapse
Judging by the picture (and using the mini usb port as refernce) I'd say its about the same size as the TC.
Not really as small as I'd like, but definately pretty portable
I picked up one of these at Hong Kong airport. I had tried it briefly but thought it didn't work (that was nearly a year ago with a different phone). I tried it this morning with the TC and it works great. I had 2x2600mA NiMH batteries, and my phone was at about 80% charge. The batteries are at indeterminant charge (charged several weeks ago, so partially discharged). I plugged the first one in and took the charge to around 90%. The second battery got it up to 100 % while using the GPS and still has charge. So it looks like it would give me enough power to make calls with one battery and if I take 4 along, I am thinking it could use GPS all day from a flat phone (with some battery swapping). The phone still gained charge while using the GPS.
I imaging that all of the ones that use AA would be similar, so the one above should do the trick. The problem with the one I have is the battery can be pushed slightly and lose the connection (which is presumably why I thought it didn't work initially).
Edit Did a better test. A single 2600 mA AA battery gives about 25% charge.
joan
I'm using the Philips rechargeable battery. It's not too big, not too heavy, it fits in my pockets and can give you up to 30 hrs of additional autonomy.
I use it frequently when riding my motorbike while using the Polaris gps. Up to 10 hours without problem, and I could still partly recharge my phone after.
Otherwhise, it can give up to two full charges, maybe 2 and a half.
Here are the specs (in french sorry).
http://www.consumer.philips.com/con...R/_retailStoreStatus_true/Power2Go+SCE4420-10
Model is SCE4420. It's boxed with many plugs to charge other items.
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These are quite good:
http://usb.brando.com.hk/prod_detail.php?prod_id=00304&dept_id=015&cat_id=035
http://usb.brando.com.hk/prod_detail.php?prod_id=00314&dept_id=015&cat_id=035
And these are a littlebit simpler:
http://usb.brando.com.hk/prod_detail.php?prod_id=00528&dept_id=015&cat_id=035
http://usb.brando.com.hk/prod_detail.php?prod_id=00527&dept_id=015&cat_id=035
When I used NT unrooted, it's still battery level while unused 3-4 days, but when I root it with Indirect method and install some apps, the battery remain 60% after 2 days unused :|, I've tried some "kill process" app but it's seem didn't work . Any suggestion? Sorry because I'm newbie
Im afraid one or some apps waste your most of power
you should check it one by one yourself
once time, I got a theme of go launcher from market
but I found power droped 20%-30% per hour(just unused)
when I uninstalled it , it came back to normal
I've got a question about strange battery behavior.
This is my battery use graphic
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There is no mistake, charge level raises when my NT's screen is switched off, is it a normal behavior for NT, or just an app glitch?
Can it be somehow connected with that after I plugged my NT into PC via generic microUSB cable charge level jumped from ~80% to 100% in a minute?
dalkor said:
I've got a question about strange battery behavior...
...There is no mistake, charge level raises when my NT's screen is switched off, is it a normal behavior for NT, or just an app glitch?
Click to expand...
Click to collapse
Most batteries will recover a portion of their apparent charge if given the opportunity to relax. {Electrons are able to move from deeper within the battery media and gather near the surface.} (There may be an algorithm issue as well, not sure.)
Can it be somehow connected with that after I plugged my NT into PC via generic microUSB cable charge level jumped from ~80% to 100% in a minute?
Click to expand...
Click to collapse
That is indeed strange!
SCClockDr said:
Most batteries will recover a portion of their apparent charge if given the opportunity to relax. {Electrons are able to move from deeper within the battery media and gather near the surface.} (There may be an algorithm issue as well, not sure.)
Click to expand...
Click to collapse
Thanks for the answer, but it still seems strange, I am used to self-discharging batteries, not to the opposite. Also I didn't see something like this happening with Nook Color or mobile phones.
SCClockDr said:
That is indeed strange!
Click to expand...
Click to collapse
I did have the same with Nook Color, but I still have no idea why it happens and what the consequences are.
I would try to see which app is keeping the tablet "awake" when the screen is off.
(I know you don't have CM7 installed, but if you ever do...there is a utility in CM7 spare parts in battery history that lists apps by Partial awake usage that I check to see whats keeping it awake.)
Dfroelich said:
I would try to see which app is keeping the tablet "awake" when the screen is off.
(I know you don't have CM7 installed, but if you ever do...there is a utility in CM7 spare parts in battery history that lists apps by Partial awake usage that I check to see whats keeping it awake.)
Click to expand...
Click to collapse
FYI, Spare Parts can be downloaded from the market. It's not special to CM.
I got a sandisk 64gb and formatted it in phone, but it only show 59,47gb free? I tried to format it several times. Any sugestions how to get the missing 4gb?
Sent from my GT-I9300 using xda premium
No sd-card will have a "true" storage... e.g. 8gb will be 7.n, 16 will be 14/15.n... 64 GB will not really be 64gb, just like hard drives, its not really 1TB, its 980/90 something
OMG, where have you been for the last 10 years ?? Is it the firt memory card that you buy ? Thats perfectly normal
Capacity is measured really stupidly in all digital media storage (hard drives, memory cards, etc). All companies define a gigabyte to be 1000MB, and a megabyte to be 1000kb, etc etc. In reality it's 1024KB per MB, and 1024MB per GB.
It's just a normal part of formatting any card and no way to get more.
aurelios69 said:
OMG, where have you been for the last 10 years ?? Is it the firt memory card that you buy ? Thats perfectly normal
Capacity is measured really stupidly in all digital media storage (hard drives, memory cards, etc). All companies define a gigabyte to be 1000MB, and a megabyte to be 1000kb, etc etc. In reality it's 1024KB per MB, and 1024MB per GB.
Click to expand...
Click to collapse
+1,
go check your computer hard drive space, heck, even that 16gb internal you have doesn't add up to true 16gb. it's just a way of marketing to fool people :/
Actual capacity will be 7.2% lower than the reported capacity in GB. If you are buying storage measured in a different unit, that percentage will change (there's an almost 10% different in reported vs actual for a 1 TB hard drive).
Flash-based drives also usually reserve a portion of their capacity to replace defective sectors. Sometimes the manufacturers include this "hidden" capacity into their marketing.
The available capacity also depends on the filesystem, the index, journal and other low-level stuff has to be stored somewhere.
aurelios69 said:
OMG, where have you been for the last 10 years ?? Is it the firt memory card that you buy ? Thats perfectly normal
Capacity is measured really stupidly in all digital media storage (hard drives, memory cards, etc). All companies define a gigabyte to be 1000MB, and a megabyte to be 1000kb, etc etc. In reality it's 1024KB per MB, and 1024MB per GB.
Click to expand...
Click to collapse
"perfectly normal"
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Hi,
I have an issue for over a year now. I am feeling kind of cursed. I try to explain my situation without too much detail.
I have a Honor 6 smartphone, after a few weeks my battery time got terrible. From 6h SoT (screen-on-time), I am now at ~2.5hrs on average. Since then, I have this battery draining thing on EACH phone.
I thought my phone was corrupt, so I ordered another Honor from Amazon (different model). I set up my Google account and installed WhatsApp. After a few full-charges, I was looking at my battery time: same terrible thing. People were getting ~7hrs SoT, my average was 2-3hrs.
I thought maybe Huawei made some mistakes with the Honor models, so I tried a OnePlus device. Guess what? Same issue.
I switched my network providers a few times. So it's not a SIM card related problem.
Is it possible that my Google account is somewhat "corrupt"? Because that's the only technical thing that's the same on each device.
It sounds like a conspiracy theory, that Google wants me to have bad battery life but I am serious. Could this be possible? I don't want to switch, I use many Google services (contacts, email, drive, etc)
Symptoms of my problem:
Occurs on several devices, sim cards (Austrian network providers A1, HoT, yesss), roms and android versions (from 4.4.2 to 6.0.1)
App usage of Android System is at least ~30% battery
Screen brightness around 30% auto brightness
LTE, GPS/Location, Bluetooth always disabled (I don't use these)
Battery drain while screen off: 3-5% per hour!
SoT around 50% of the values other people have (on the OnePlus I got 3hrs instead of 6, Honor devices 2.5 - 3.5 instead of 5-7)
Screenshot examples:
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Does anyone have a clue? I spent too much time with rooting, factory resetting, researching, etc. in the last 14 months - now I have no idea any more.
Thanks in advance!
One more thing: I use GSam Battery Monitor, BatteryBatteryStats, Wakelock Detector - and they can't "help" me.
Is there another tool, which has even more details? I don't think so, but there has to be hope
Hello XDA,
I have an iphone 4s of which the battery swelled. cut the circuit of the cell, threw out the battery, and confirmed that the phone works. Now, I have several extra batteries, and wanted to wire one to the phone. I would wire them to the original battery connector, and it should just click into the factory place and work.
This phone is a test/experiment/I-couldn't-care-less-for-it phone, so the battery would be taped to the back. (my OP3 is my daily driver)
The iPhone has 4 pins, and the only 4 pin battery I have is an aftermarket Galaxy S4 battery.
(2100 mAh F5 3.7v)
My question is this, is there any reason that it will not work, if I connect the 4 pins pin to pin?
According to my knowledge, both the iPhone and Samsung battery are 3.7v, and the the mAh is just the capacity. The thermistor and data pins should detect battery charge and discharge, and the motherboard would adjust to the battery. My logic with this mod is that if the double sized batteries that fit and work on your phone from ebay work, why can't I strap a bigger(bigger in mAh + physical size, but same output-3.7v) battery to the back.
I've done this before on a clone
HTML:
http://imgur.com/a/ls5Ul
and the battery held for a week with WiFi and Bluetooth on!
I've been googling a lot, and could not find a lot of information as to why this would not work. I've found one worrying link saying that the bigger the mAh of the battery, the larger the Ohm resistance. Is this true? Would a bigger mAh battery fry the phone? I thought mAh was just the capacity in amper hours, not the discharge rate(3.7v?!).
Any info will help a lot, thanks!
-iPhone 4s 16GB
edit:
Would I be able to use a 3 pin battery thus leaving one pin empty?
If I was to use a 3 pin battery, to which pins would I connect them?
ACFH said:
A 4 pins battery has 2 power pin, 1 metter pin, 1 data pin. Data pin is some kind battery ID. Most phone dont work if you using another manufacture battery (wrong ID). You better take out battery cell and solder to origin battery board. It work for me (I'm not try with ip yet).
Click to expand...
Click to collapse
I thought of this too, but could it be that the battery swelled because of a bad battery board?
Would anyone know which is the positive and negative side on the circuit?(not the battery) There is a small "1" and "2" next to each terminal, but I don't know which is what.
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