Looking for confirmation that the battery from the Rezound will work with the Thunderbolt. If anyone can confirm this I would greatly appreciate it.
Shawn haz root said:
Looking for confirmation that the battery from the Rezound will work with the Thunderbolt. If anyone can confirm this I would greatly appreciate it.
Click to expand...
Click to collapse
all I can confirm is that the battery from the T-Mobile MyTouch 4G also works in the Thunderbolt(and vice-versa), just not the back covers.
also, once we know if the Rezound/Thunderbolt batteries are compatible, the back covers obviously will not be. so if you're planning on putting one of those extended batteries in the Rezound you'll be out of luck.
The Thunderbolt battery works in the Rezound, at least mine did.
Sent from my ADR6400L using XDA App
I just switched them between my Rezound and my wife's Thunderbolt. They both worked in the opposite phone. However, on the Rezound, the battery icon showed an exclamation point, like something was wrong. Phone still works though. *shrug* Back covers fit on both too.
After getting mine on Thursday I did notice the Rezound battery will fit a Thunderbolt and vise versa but in looking at the voltages the Rezound battery is a 3.8v and the Thunderbolt is a 3.7v so I would mess around with it. The voltages don't match up. But they do fit perfectly.
I ended up buying one at the VZ store. It's working but for some reason my battery is not reporting the correct level. I can't figure out why. I have cleared cache, dalvik, and battery stats (at 100%.) I even wiped and reloaded my rom. Anyone have any ideas on how to fix it?
The voltage is different I believe the capacity of the battery is read by the voltage, so if the voltage is already lower it will read a lower charge.
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Both have the same voltage. 3.7v.
Can't read the Rezound battery.
Sent from my Galaxy Tab 10.1
jbh00jh said:
Can't read the Rezound battery.
Sent from my Galaxy Tab 10.1
Click to expand...
Click to collapse
Thunderbolt: 3.7VDC - 1400mAh - 5.18Whr
ReZound: 3.7VDC - 1620mAh - 5.99Whr
basically, the Thunderbolt battery should work just fine... although since the 'wattage hours' on the Thunderbolt battery is lower(not to mention the 'milliamp hours'), the Thunderbolt battery isn't going to last anywhere near as long as the ReZound battery.
It's working great now. Thanks guys.
Hello, looking at what pictures I could find, the sensation XE and the evo batteries all look similar to the rezounds, any chance someone here has some lying around to test? A 1730mAH battery would be nice if it fits with back cover.
*Edit* Ahh I see there is a 1800mah for the rezound already, ill just go with this!
Shawn haz root said:
Both have the same voltage. 3.7v.
Click to expand...
Click to collapse
Ok, so weird. This is my Rezound battery:
My buddy bought a Rezound at Best Buy just a few hours before me, though, and his has the 3.7v batt. So strange. Obviously, the Rezound is able to cope with either voltage, though.
---------- Post added at 11:16 AM ---------- Previous post was at 11:07 AM ----------
Kotori said:
Hello, looking at what pictures I could find, the sensation XE and the evo batteries all look similar to the rezounds, any chance someone here has some lying around to test? A 1730mAH battery would be nice if it fits with back cover.
*Edit* Ahh I see there is a 1800mah for the rezound already, ill just go with this!
Click to expand...
Click to collapse
Link to the 1800mAh Rezound batt?!
SamXp said:
Ok, so weird. This is my Rezound battery:
My buddy bought a Rezound at Best Buy just a few hours before me, though, and his has the 3.7v batt. So strange. Obviously, the Rezound is able to cope with either voltage, though.
Click to expand...
Click to collapse
Battery voltage is not a constant. A single cell lithium ion battery is rated at 3.7 volts. The 3.8 volts on your pack is probably a miss-label. At full charge, a single cell lithium ion battery will be around 4.2 volts. It will go down from there to a pre-determined low cutoff to protect the cell. If you can find a widget or app that shows battery voltage, you will see what I mean. I've never run my phone down to see what level it shuts off at but I suspect it to be somewhere around 3200 - 3000 mV. As someone who races RC Cars with lithium ion batteries, I can tell you that we usually use 3 volts for a low cutoff to prevent damage to the cells.
SamXp said:
Ok, so weird. This is my Rezound battery:
Click to expand...
Click to collapse
I doubt it's just a wrong label. His part number is different from ours with 3.7V
l7777 said:
Battery voltage is not a constant. A single cell lithium ion battery is rated at 3.7 volts. The 3.8 volts on your pack is probably a miss-label. At full charge, a single cell lithium ion battery will be around 4.2 volts. It will go down from there to a pre-determined low cutoff to protect the cell. If you can find a widget or app that shows battery voltage, you will see what I mean. I've never run my phone down to see what level it shuts off at but I suspect it to be somewhere around 3200 - 3000 mV. As someone who races RC Cars with lithium ion batteries, I can tell you that we usually use 3 volts for a low cutoff to prevent damage to the cells.
Click to expand...
Click to collapse
Yeah, I don't put too much stock in it. I measure close to 4.2v at full charge, but never checked the low voltage cutoff. I used to race RC but that was before LiIon rolled around!
Mooselips said:
I doubt it's just a wrong label. His part number is different from ours with 3.7V
Click to expand...
Click to collapse
And there are a good number with the 3.8v batt. Poll here:
http://androidforums.com/htc-rezound/449482-your-rezound-batt-3-7v-3-8v.html
I have a 3.8 volt battery. I have it in my hand right now.
Related
I read few topics similar like this on other web sites, but i need more opinions from you guys. I have 3vo GSM for few days and i am afraid of charging the batery. Why? Because it is going up to 4350mv or 4.35V, and as i know it's too much (it's normal up to 4.1 or 4.2) and with that kind of charge you can reduce battery life. So i need to know is that rom related, kernel related or it's something wrong. I am rooted on MikRunny v1.11 and don't know is that happaning on stock phone. I don't know what is wrong, but i don't like this kind of charging.
It's normal.
majid25 said:
It's normal.
Click to expand...
Click to collapse
It's definetly not normal. It's hurting battery.
Wikipedia:
High charge levels and elevated temperatures (whether from charging or ambient air) hasten capacity loss. Loss rates vary by temperature: 6% loss at 0 °C (32 °F), 20% at 25 °C (77 °F), and 35% at 40 °C (104 °F).
(Many) Lithium-ion battery packs contain fail-safe circuitry that shuts down the battery when its voltage is outside the safe range of 3–4.2 V per cell. ....3.7 V nominal voltage with a 4.2 V max charge.
Typically, lithium-ion cells are charged with 4.2 ± 0.05 V/cell.
Is there something that can fix this????
4350mv is totally normal for our phones.
It's perfectly normal, stop being paranoid. It's just a phone.
Sent from my PG86100 using Tapatalk
Thanks for reply. My phone is charging from 99% to 100% in 45 minutes. Is that normal too??
Sent from my HTC EVO 3D X515m using XDA
kire.htc said:
Thanks for reply. My phone is charging from 99% to 100% in 45 minutes. Is that normal too??
Sent from my HTC EVO 3D X515m using XDA
Click to expand...
Click to collapse
No, that's a lie
Sent from my PG86100 using Tapatalk
bloodrain954 said:
No, that's a lie
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
Lol.
Trust me there are fail safes. Your phone will not blow up and your battery will no spontaneously com bust. Quit being paranoid...
bloodrain954 said:
It's perfectly normal, stop being paranoid. It's just a phone.
Sent from my PG86100 using Tapatalk
Click to expand...
Click to collapse
Just a phone? It's also got a highly volatile battery in it if you charge it incorrectly.
When people say "it's normal", you need to clarity whether normal = phone misreads charge voltage, or if normal = normal to charge at 4.35v. If it's "normal to charge at 4.35v" then that's a real big problem with your phone.
Li-ion is not to be ******* with. Please don't go telling people it's OK when it's not.
[This has been a public service announcement] lol ;-)
Sorry if the tone is harsh, but please go and read some articles on li-ion charging people
meme405 said:
Lol.
Trust me there are fail safes. Your phone will not blow up and your battery will no spontaneously com bust. Quit being paranoid...
Click to expand...
Click to collapse
So at what point are you going to mention one of the fail-safe's being that it vents to atmosphere when the battery pressure get's too high? (possibly with flame).
Overcharging li-ion battery is very dangerous. I did some research and this is what i found:
I fully charged my battery. On battery monitor widget it shows 4349mV. I turn off the phone, take off batery and measure with digital multimetar. It shows 4.31mV. So maybe the phone does't show very accurate stats. I'am still not sure.
This is what i found on web:
A source reached out to us and let us know that the Motorola Bionic's 3.8 V battery is in fact using a new alternative high voltage chemistry, and is not simply an overcharged Lithium Ion battery. This same battery will be used in the just-announced Motorola Atrix 2 as well. Note that the battery name includes an H (eg HW4X) to denote the use of these high voltage battery chemistries. This new chemistry also has similar cycle life as existing 3.7 V nominal batteries, and has been in the works for several years.
It’s just interesting that this particular battery is 3.8 V nominal (4.3 V fully charged), as this 0.1V boost design choice gives the battery a bit more capacity. It isn’t a huge difference, 3.7 V would make the 1735 mAh battery 6.4 Whr, the 3.8 V of this current design makes it 6.6 Whr.
SOURCE: http://www.anandtech.com/show/4910/motorola-droid-bionic-review-dual-core-with-4g-lte/2
This will be useful too:
http://forum.xda-developers.com/showthread.php?t=871051
So i hope that this will help someone.
bloodrain954 said:
No, that's a lie
Click to expand...
Click to collapse
ORLY? I've noticed on several different chargers that my Amaze is moderating the charging rate (and amperage, if you believe Battery Monitor Widget) as it nears 100%. I get "Battery Full" and "Charging complete" alarms well after "100%" is reached.
Both images are from overnight charge cycles, with screen turned off. Autosync and other periodic processes are disabled at night by Llama. Vertical indices represent one hour. Second image is for an HTC stock charger, U250.
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Does anyone know If this battery is any good?
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Sent from my HTC_Amaze_4G using Tapatalk
I ordered mine from OBOStore about 5 days ago for just under $9 shipped...they come straight from China so shipping will take a couple weeks.
I have heard mixed reviews about Andida, but imho its just as good as Anker
Sent from my HTC_Amaze_4G using xda premium
magiconthetire said:
I ordered mine from OBOStore about 5 days ago for just under $9 shipped...they come straight from China so shipping will take a couple weeks.
I have heard mixed reviews about Andida, but imho its just as good as Anker
Sent from my HTC_Amaze_4G using xda premium
Click to expand...
Click to collapse
thanks for your input
Sent from my HTC_Amaze_4G using Tapatalk
In my honest opinion Anker trump all but anything besides stock probably have an advantage. I reccomend the Anker 2 pack plus charger on Amazon personally
I can't post a link due to the fact I lurk and don't ever post apparently. I'll only you it
Anker x 2 + Charger from Amazon...
Flipnfr3ak said:
Does anyone know If this battery is any good?
View attachment 1041582
Sent from my HTC_Amaze_4G using Tapatalk
Click to expand...
Click to collapse
I used them with my hd2. They did not have anywhere near the claimed capacity, but were better than stock. They weren't available when I bought spare batteries, so I'm using Anker. With ICS I don't use the spare batteries much anyway.
Sent from my HTC View somewhere in LALA land
I've read numerous reports about the Anker displaying inaccurate % after a full charge and such. Guess I'll give it a shot myself and order one. Anything better than the stock battery is preferred.
Sent from my HTC Ruby
Inaccurate % was due the different voltage in batteries. All of ankers batteries out there for our phone are 3.7V and we use a 3.8V. There used to be a very extensive report on anker and another company somewhere in our forums but I can't find it.
Just to be clear there's nothing wrong with using a undervolted battery as long as you aren't undervolting trough setCPU or any other similar program. It will have a negative effect on batter life and phone preformance.
Sent from my HTC_Amaze_4G using XDA
getrdy said:
Inaccurate % was due the different voltage in batteries. All of ankers batteries out there for our phone are 3.7V and we use a 3.8V. There used to be a very extensive report on anker and another company somewhere in our forums but I can't find it.
Just to be clear there's nothing wrong with using a undervolted battery as long as you aren't undervolting trough setCPU or any other similar program. It will have a negative effect on batter life and phone preformance.
Sent from my HTC_Amaze_4G using XDA
Click to expand...
Click to collapse
I've always wondered if the Amaze phone hardware charges to 3.8, and may have problems with overcharging the Anker. I have always charged my Ankers via external charger.
getrdy said:
Inaccurate % was due the different voltage in batteries. All of ankers batteries out there for our phone are 3.7V and we use a 3.8V. There used to be a very extensive report on anker and another company somewhere in our forums but I can't find it.
Just to be clear there's nothing wrong with using a undervolted battery as long as you aren't undervolting trough setCPU or any other similar program. It will have a negative effect on batter life and phone preformance.
Click to expand...
Click to collapse
stevedebi said:
I've always wondered if the Amaze phone hardware charges to 3.8, and may have problems with overcharging the Anker. I have always charged my Ankers via external charger.
Click to expand...
Click to collapse
O.K. so I shouldn't be charging it in the phone at all? or just not to 100%? because it seems whenever I do charge it to 100% as soon as I take it off it drops to 96% almost instantly... but I usually get 12-14hrs of med-heavy usage... and usually at least 6hrs of extreme usage... so I think it does have capacity... wish I had done a little more research before buying though, would have bought a 3.8V battery...
blast0id said:
O.K. so I shouldn't be charging it in the phone at all? or just not to 100%? because it seems whenever I do charge it to 100% as soon as I take it off it drops to 96% almost instantly... but I usually get 12-14hrs of med-heavy usage... and usually at least 6hrs of extreme usage... so I think it does have capacity... wish I had done a little more research before buying though, would have bought a 3.8V battery...
Click to expand...
Click to collapse
No, I have actually been charging it in my phone these days. It started when I forgot I had swapped out my OEM battery, and it was fine in the morning. So you can use the phone to charge.
I don't know if there are any 3.8v batteries of this size, except OEM.
EDIT: Mine drops % pretty rapidly after disconnecting the power as well.
stevedebi said:
EDIT: Mine drops % pretty rapidly after disconnecting the power as well.
Click to expand...
Click to collapse
Thanks for the feedback, it must just be the voltage difference that throws off the system... I appreciate your prompt input!
Anyone know of an app that measures the battery's mAh?
I have tried battery monitor by 3c, but I don't think it works completely with HTC phones.
Either it keeps saying measurement requires 40% or larger charging cycle or it reports something crazy..
Thanks in advance..
Sent from my Sensation using XDA
elmalote said:
Anyone know of an app that measures the battery's mAh?
I have tried battery monitor by 3c, but I don't think it works completely with HTC phones.
Either it keeps saying measurement requires 40% or larger charging cycle or it reports something crazy..
Thanks in advance..
Sent from my Sensation using XDA
Click to expand...
Click to collapse
Battery Calibration, search for it on the market
creeve4 said:
Battery Calibration, search for it on the market
Click to expand...
Click to collapse
It doesn't show mAh only mV judging by the screen shots.
Sent from my Sensation using XDA
Is this you are looking for
https://play.google.com/store/apps/details?id=com.manor.currentwidget
Sent from my Sony Xperia Neo using Tapatalk 2
Tenacius D said:
Is this you are looking for
https://play.google.com/store/apps/details?id=com.manor.currentwidget
Sent from my Sony Xperia Neo using Tapatalk 2
Click to expand...
Click to collapse
No, I'm looking for something to show the battery's capacity. Like for example 1520mAh.
Sent from my Sensation using XDA
Something like this?
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Sent from my E15i using xda premium
elmalote said:
Anyone know of an app that measures the battery's mAh?
I have tried battery monitor by 3c, but I don't think it works completely with HTC phones.
Either it keeps saying measurement requires 40% or larger charging cycle or it reports something crazy..
Thanks in advance..
Sent from my Sensation using XDA
Click to expand...
Click to collapse
hey i would also suggest using the battery monitor widget pro as it has settings for u to set the mAh and then it will calibrate itself accordingly
letaureau said:
hey i would also suggest using the battery monitor widget pro as it has settings for u to set the mAh and then it will calibrate itself accordingly
Click to expand...
Click to collapse
I know this thread is old. But in case anyone still interested, you can find it by looking at your physical battery(if you have a removal battery of course)
Look for Wh and V printed on the battery.
mAh = Wh × 1000 / V
Example:
Samsung Galaxy S3: 3.8 V 7.98 Wh
7.98Wh × 1000 / 3.8V = 2100mAh
I think he meant how much Mah or capacity is actually left on the battery. You can do this in Linux, but not sure about Windows or Android. For example my laptop battery is rated at 4400mah, but the Lubuntu tool tells me max capacity is only 2920mah now.
Well, I think what he needs is to test the battery capacity, as we know lot of 3rd party battery claim higher capacity than it does.
The way to do this correctly by measuring the battery using mAH meter.
But if you want to do it by software, I think you can use this
https://play.google.com/store/apps/details?id=ru.NanoDinamics.NovaTester
But, I'm not sure either this will give you an accurate result.
Noel212 said:
Well, I think what he needs is to test the battery capacity, as we know lot of 3rd party battery claim higher capacity than it does.
The way to do this correctly by measuring the battery using mAH meter.
But if you want to do it by software, I think you can use this
https://play.google.com/store/apps/details?id=ru.NanoDinamics.NovaTester
But, I'm not sure either this will give you an accurate result.
Click to expand...
Click to collapse
Gonna check it, but as my battery is about 3 years and some months old (Galaxy S2), I won't have any way to know if the result is OK.
Thanks for sharing the app!!
Well, after running the full test, it showed that my battery's real capacity is a hilarious amount of 750mAh, not even one Ampere per hour. I estimate about 1800 charging cycles
escarabajo said:
Well, after running the full test, it showed that my battery's real capacity is a hilarious amount of 750mAh, not even one Ampere per hour. I estimate about 1800 charging cycles
Click to expand...
Click to collapse
wich of the 3 tests did you use? (in nova battery tester)
issy_i said:
wich of the 3 tests did you use? (in nova battery tester)
Click to expand...
Click to collapse
The longest one, ran it till the battery died
escarabajo said:
The longest one, ran it till the battery died
Click to expand...
Click to collapse
okay thanks, then i will do that test too, my original 1650mAh is also about 3 yrs old so im very curious
issy_i said:
okay thanks, then i will do that test too, my original 1650mAh is also about 3 yrs old so im very curious
Click to expand...
Click to collapse
When finished let me know rhe results, although my S2 is retired now, I am curious about the results
escarabajo said:
When finished let me know rhe results, although my S2 is retired now, I am curious about the results
Click to expand...
Click to collapse
Okay i will
now im using an 1 year old mugen extended battery (3200mah), i will put this batt tot the test too
overall im still happy with the S2, its far from ready to sent to retirement just yet lol
okay the test is started
Here it is and im very suprised, +- 400mAh loss in a period of 3 years
here is the result of the test of the Mugen 3200mAh battery.
(bought it used a year ago, so i dont know how long it was used before i bought it).
And i did my research, this battery has been tested (new) and give arround +- 2400mAh in real-time even though Mugen claiming its 3200mAh
overall +- 250mAh loss, im very pleased with the performance
btw for informative purposes the screen was at full brightness in both tests
Back-up Battery(i.e-power banks,power tube,battery cases,etc)
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or
Removable Battery(i.e-Hyperion) remove and replace
Which do you prefer guys? any pros and cons.
ide go for the hyperion, its pretty much the same as genuine batteries if not then better
ive seen reviews that hyperion is one of the best and affordable also...
hope i helped
I've read that often removing the battery and placing another one will make the battery "pins" in the phone loose and will result.... don't remember exactly but negative effects on the battery
is that true?
bordikun said:
I've read that often removing the battery and placing another one will make the battery "pins" in the phone loose and will result.... don't remember exactly but negative effects on the battery
is that true?
Click to expand...
Click to collapse
well im not to sure about your question but ive heard that if you keep on charging the battery without fully draining it first gives you less battery life over time for the phone.
hope i am of help in some way
As2O said:
well im not to sure about your question but ive heard that if you keep on charging the battery without fully draining it first gives you less battery life over time for the phone.
hope i am of help in some way
Click to expand...
Click to collapse
As far I know, it's quite the opposite. Li-ion batteries do not have "memory effect". In fact, letting the battery fully discharge wastes a life cycle. However, it is advisable after 20/30 charges, to perform fully discharge/charge to re-calibrate the measurements. Some says that if battery stays between 40% and 60% of charge is the ideal (due to factors such as temperature, etc.).
I don't know if to keep changing batteries may affect the pins. But as long you keep using the batteries regularly its fine. Just don't let your batteries unused for a long time.
Thanks both, but if you were to buy one which would you choose?
bordikun said:
Thanks both, but if you were to buy one which would you choose?
Click to expand...
Click to collapse
as i said earlier ide go for the hyperions, ive seen reviews on them and they seem very good
bordikun said:
Back-up Battery(i.e-power banks,power tube,battery cases,etc)
or
Removable Battery(i.e-Hyperion) remove and replace
Which do you prefer guys? any pros and cons.
Click to expand...
Click to collapse
I don't trust 3rd party battery manufacturers anymore. I bought a couple Hyperion batteries with my Note. The batteries were supposed to be 2600 mah but it turns out they were really 1500. I have also had this same problem with another manufacturer that everyone said was good. I don't trust them anymore. I bought a genuine Samsung battery. One other thing to note, if you want to use NFC, you will need the Samsung battery.
homegeek said:
I don't trust 3rd party battery manufacturers anymore. I bought a couple Hyperion batteries with my Note. The batteries were supposed to be 2600 mah but it turns out they were really 1500. I have also had this same problem with another manufacturer that everyone said was good. I don't trust them anymore. I bought a genuine Samsung battery. One other thing to note, if you want to use NFC, you will need the Samsung battery.
Click to expand...
Click to collapse
I don't really use NFC that much, I only know a few people that have s3.
so that problem of the hyperion was the 2600 mAh turns out to be 1500 mAh? how did you know exactly? also did the battery(hyperion) did negative effects on your note?
bordikun said:
I don't really use NFC that much, I only know a few people that have s3.
so that problem of the hyperion was the 2600 mAh turns out to be 1500 mAh? how did you know exactly? also did the battery(hyperion) did negative effects on your note?
Click to expand...
Click to collapse
I found out because several people on various boards pulled the original label on the battery and saw the real mah size. This seems to be a problem with a lot of 3rd party batteries. You really do get what you pay for. The battery did work but did not last anywhere as long as the original. I also do not believe the batteries harmed my phone in any way.
Well you got 2 pcs of that hyperion batt right? so that makes equals to 1 good battery lol
I've also gave up hope on 3rd party batteries after a lot of testing and analysing with a real battery analyzer. For example, the genuine cell in a SGN specified to 1750mAh measured 1690mAh which is well within margins. The same for genuine Nokia cells. A well known 3rd party battery manufacturer has this "super mega xl" cell specified to x000mAh but turned out just at x300mAh which is really bad. The internal resistance also appears to be worse on most 3rd party cells.
Regards Per
Sent from my GT-I9300 using xda app-developers app
I've seen reference to a couple different batteries that should fit/work, for those looking to replace the battery for one reason or another and figured I'd consolidate things here...
http://planetfon.ru/akkumuljator-li-pol---3-7v--5000mah_l238
http://www.allbatteries.co.uk/tablet-battery-3-8v-5100mah-tml90080.html
The challenge being for some that neither of those will ship to the US (no one will internationally probably, because of our lipo shipping restrictions).
Anyone found a supplier in the states with something similar?
My main worry would be: how do we know that the replacement battery we buy from some obscure online store is any safer than the original faulty battery?
zoodles said:
My main worry would be: how do we know that the replacement battery we buy from some obscure online store is any safer than the original faulty battery?
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You don't. But since my old tablet's battery got bloated, I'd rather take my chances with a dubious china battery...
BTW: Anyone knows a compatible battery obtainable in Germany?
@ slideyneez: Where did you get the link to the battery from allbatteries.co.uk from?
I found a battery that someone posted that should work and is found through AliExpress so they ship worldwide
http://m.aliexpress.com/item/2034516438.html
Battery specs
That'S great!
Anybody has original battery specs that we can compare?
espamcaca said:
That'S great!
Anybody has original battery specs that we can compare?
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Click to collapse
http://www.anandtech.com/show/8296/the-nvidia-shield-tablet-review
https://forums.geforce.com/default/...eep-your-recalled-tablet-can-you-fix-it-tut-/
Here are some options too!
drug18477 said:
[email protected] slideyneez: Where did you get the link to the battery from allbatteries.co.uk from?
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Over in this thread - http://forum.xda-developers.com/showpost.php?p=62442239&postcount=336
Allbatteries looked to have the same thing (and even the same website design, maybe they are related), and was in a more convenient language so I cited that one.
espamcaca said:
That'S great!
Anybody has original battery specs that we can compare?
Click to expand...
Click to collapse
Here's the specs of my "firehazard" battery.
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espamcaca said:
https://forums.geforce.com/default/...eep-your-recalled-tablet-can-you-fix-it-tut-/
Here are some options too!
Click to expand...
Click to collapse
Ain't that battery got a bit too low voltage? The original battery is a 3.9v, but the one he shows is a 3.7v
andsa said:
Ain't that battery got a bit too low voltage? The original battery is a 3.9v, but the one he shows is a 3.7v
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0.2V isn't a significant difference for a whole battery pack - tolerances can easily lead to the same difference (+ or -).
FYI, the official replacement B01 battery is rated at 3.8V.
Sent from my SHIELD Tablet using XDA Free mobile app
andsa said:
Here's the specs of my "firehazard" battery.
Ain't that battery got a bit too low voltage? The original battery is a 3.9v, but the one he shows is a 3.7v
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That is not how these batteries work all lipo are 3.7v unless they have multiple cells in series then the voltage goes up in increments of 3.7
Also it should be known that a fully charged lipo will read 4.2v and a discharged will read 3-3.3v
The fire hazard with these is likely 2-fold 1 the charge and protection circuit has a flaw that allows the battery beyond a threshold either voltage or temp paired with a bad cell this had a bad habit of catastrophic failures. This is likely why nvidia opted to brick tablets rather than open them and swap the batteries and resell them as refurbished.
Btw that is what I would have done everyone got a k1 style tablet where the package had nothing but the new tablet inside was a return label and the procedure would have been factory reset tablet then package just the tablet no stylus no accessories. As the tablet you would get would be in a similar state... except the stylus slot might have a rubber plug...
Alright.
But has anyone tried a third party battery by now without any issues? For example the aliexpress one? Cause my old shield tablet is still off and awaiting a new battery and a kernel change because the tablet initially awaits the kernel killer to kill off the old one.
andsa said:
Alright.
But has anyone tried a third party battery by now without any issues? For example the aliexpress one? Cause my old shield tablet is still off and awaiting a new battery and a kernel change because the tablet initially awaits the kernel killer to kill off the old one.
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Click to collapse
Well that depends what you call issues there are several in this thread that reported that the battery did not last as long that is not really what I would call an issue as the original battery was 5200mAh they put a 4250 in or even a 4000 that should last less it is an expected result...
But that said my previous post was a warning against this as the faulty bits might be part of the charging and protection circuit on the battery. Particularly the control chip that runs the sensors and the charging regulator.
Anyone do this yet I bought a LTE model and the battery is seriously eroded.
Sub-Negro said:
Anyone do this yet I bought a LTE model and the battery is seriously eroded.
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My post right above yours I did the reading for you the people using the Nexus 7 4250 mAh cell reported that it worked but with an expectedly shorter run time. As loosing about 1000 mAh is a noticeable drop.
mirrin said:
My post right above yours I did the reading for you the people using the Nexus 7 4250 mAh cell reported that it worked but with an expectedly shorter run time. As loosing about 1000 mAh is a noticeable drop.
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Interesting well I found a few batteries that have 5000mah. Not sure if they would work.
http://www.ebay.com/sch/i.html?_odk...0.H0.X5000mah.TRS2&_nkw=5000mah&_sacat=180235
Sub-Negro said:
Interesting well I found a few batteries that have 5000mah. Not sure if they would work.
http://www.ebay.com/sch/i.html?_odk...0.H0.X5000mah.TRS2&_nkw=5000mah&_sacat=180235
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Click to collapse
In theory you could replace the pack with a bank of 14500 cells. As long as it was a 1s?p arrangement it means 1 series any number in parallel series is voltage and parallel would be capacity and amperage.
The procedure given to replace the battery packs in these tablets involves removing the charging/protection from the original pack and soldering the new pack to the old batteries solder points. So any bare lithium ion pack that is 1s?p configuration should work if it fits. 3.5mm 64 mm 150 mm is the 3 measurements for the OEM pack