I just got the extended battery for my CDMA GNex. How do I make the best use of both my normal and extended battery?
i heard that its not good for your phone to switch between the two batteries so how would i use them both without ruining either one of them?
i dont have a battery charging cradle or anything, so the only way i could charge both phones would be through the phone itself.
thanks
Peesashiz said:
i heard that its not good for your phone to switch between the two batteries so how would i use them both without ruining either one of them?
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I don't see how that would be bad for the phone, or batteries, in any way. It's advised that you don't plug the phone in and switch out the batteries with the phone still on, which might be what you heard.
Just power down the phone when you're going to swap batteries and you're all set.
thanks for the reply
so i could just pop in the second battery even when the first one isnt completely drained? (when its turned off)
wouldnt that confuse the battery stats file or something?
also, can i charge both batteries through my phone one after the other or would that also confuse my phone?
Related
Just want to give everybody a heads up about fastboot on the Evo. First I'll give a little background of the things I have done with my phone.
Root & Nand Unlock
Running CM7 Nightly build #26
Custon Splash Screen and Bootloader
Nothing special about it but it was a work in progress..
Now onto the warning.
I had my phone in fastboot mode working on pushing a different Splash Screen to my phone when I realized that I was late for picking my girl up from work. Looking back now this was a dumb idea, but I decided to just leave and pick her up and I would finish when I came back. Meaning that I left my phone plugged into the computer in fastboot mode and I had the command prompt up as I was typing in the code to push the image. When I returned home my phone was off. I also realized that the charging light wasn't on. I tried turning on the screen and nothing. Tried booting into recovery and nothing again. So i decided to unplug it from the computer and plug it straight into the wall hoping that might help. I was wrong. 30 minutes later still no charging light at all. Not even blinking. Not exactly sure what caused the bricking of my Evo. If it was leaving it in the fastboot screen to long, having it plugged into my computer, having the command prompt up or maybe a combination of all of them.
So moral of the story is don't do this lol.
Wow, sorry to hear that. Have you tried removing the battery for a couple minutes? then put back in and plug in to charge?
My sisters phone was absolutely dead and wouldnt come on and no charge light. It took several attempts of pulling the battery, re-inserting it before the charge light came back on. (If im not mistaken the phone does not charge in fast boot, so maybe your battery is super dead like hers)
Yea, I would definitely try a known good battery before letting your Evo RIP. Sometimes li-po batteries get dead to the point that they wont take a charge.
Sent from my PC36100 using XDA App
elegantai said:
Wow, sorry to hear that. Have you tried removing the battery for a couple minutes? then put back in and plug in to charge?
My sisters phone was absolutely dead and wouldnt come on and no charge light. It took several attempts of pulling the battery, re-inserting it before the charge light came back on. (If im not mistaken the phone does not charge in fast boot, so maybe your battery is super dead like hers)
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Fantastic call!!!! My girl also has an Evo so I stole her battery and put it in my phone and presto it works just fine. So now I have my battery in her phone on the charger. It has been a little over 2 1/2 and still nothing. So I am thinking that the battery might just be permanently dead. If that's all that happened then I am satisfied. I can handle buying a new battery but I really didn't want to get a new phone. Thanks to both of you guys "elegantia" and "k2buckley". I appreciate your posts
obrien84 said:
Fantastic call!!!! My girl also has an Evo so I stole her battery and put it in my phone and presto it works just fine. So now I have my battery in her phone on the charger. It has been a little over 2 1/2 and still nothing. So I am thinking that the battery might just be permanently dead. If that's all that happened then I am satisfied. I can handle buying a new battery but I really didn't want to get a new phone. Thanks to both of you guys "elegantia" and "k2buckley". I appreciate your posts
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Glad to help, and glad you got it going again! What a relief for you! Yea, these batteries don't like to die completely, despite what some people say. The fact is, lithium polymer/lithium ion batteries don't like to be drained to 0. But at least it's just a bad battery. Check on ebay, I've heard good results about some of the cheap ones on there. And best buy also has a 1750mah battery, that is the same physical size as stock, but has a little more juice (stock is 1500mah). Good luck.
You can pick up a brand new OEM battery off of Amazon for $13. I'd go that route before the 1750 mAh batteries off eBay. The tests I've seen show they actually have less capacity than the stocker.
Also, this may be kind of pseudosciency but try putting the battery in the freezer for a few minutes and then popping it right on a charger.
k2buckley said:
Glad to help, and glad you got it going again! What a relief for you! Yea, these batteries don't like to die completely, despite what some people say. The fact is, lithium polymer/lithium ion batteries don't like to be drained to 0. But at least it's just a bad battery. Check on ebay, I've heard good results about some of the cheap ones on there. And best buy also has a 1750mah battery, that is the same physical size as stock, but has a little more juice (stock is 1500mah). Good luck.
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It's so wierd because my phone was fully charged when I left the house. So unless fastboot drains your battery like "super quick" I am shocked to say the least. I'm willing to try anything with the current battery I have so I might take the advice of "eventer289" and throw it in the freezer and then on the charger. Not sure what I will do yet if I have to purchase another battery but one thing is for sure, my girl is definitely not going to let me keep her battery so whatever I decide I am going to have to do it quick lol. Thanks again for all the advice
Let me know if it works. I've read about the freezer thing to revive lithium ion laptop batteries, so I figure what the hell, give it a shot.
Your battery got to low and that's why it won't charge it, I had the same thing happen to me last week. I just cleaned up my phone using my spare and took it in to sprint with the bad one back in it. They gave me a new one for free.
eventer289 said:
Let me know if it works. I've read about the freezer thing to revive lithium ion laptop batteries, so I figure what the hell, give it a shot.
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I will let you know for sure. I accidentally left it in the freezer overnight lol. I just pulled it out and put it in the charger. It isn't showing a charge light but I will keep you posted.
xHausx said:
Your battery got to low and that's why it won't charge it, I had the same thing happen to me last week. I just cleaned up my phone using my spare and took it in to sprint with the bad one back in it. They gave me a new one for free.
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My girls phone isn't rooted. So I might just take hers in with the battery and do this. Not a bad idea at all. Thanks
Update- Have had battery plugged in for four hours now and nothing. So final conclusion is that the battery is shot!!! Sprint, here I come lmao!!
yes.. take it to sprint.. you have 1 yr warranty..
99% sure they will just give you a new battery. if they have one!
Dan330 said:
yes.. take it to sprint.. you have 1 yr warranty..
99% sure they will just give you a new battery. if they have one!
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That's wha I'm hopin
The problem is, I think in certain modes - such as fastboot, the charging code isn't present. If you leave the device unattended, it drains and drains, even if plugged in (notice no charge light in recovery mode either, when plugged in). As stated, if the voltage falls too low, it won't accept a charge. There's probably some way of reviving the battery, but why bother. Hopefully the OP learned his lesson.
Lithium chargers have a built in safety that will check for minimum voltage before attempting to charge the battery. The EVO has this safety mechanism built in. The method to bring the battery back is to charge it in a dumb charger until the voltage reaches high enough for the EVO to recognize it as a proper battery and then charge it. I've never had to do this on a mobile battery but have done it a few times on Lithium Polymer packs for R/C planes. Some cheap Chinese chargers don't check voltage before charging. You could try jumping the terminals from a good pack to the dead pack for a few minutes being careful to jump the exact same terminal on both batteries. It's worth a shot. Excessive discharge can ruin the battery life going forward but you won't really know until you try. I would monitor both packs for excessive heat just in case but in all likelihood you'll be fine connecting them for a few minutes to boost the voltage on the dead pack. You can always get a two pack of batteries and an external charger on eBay for around $20.
^^^^ good info.. on why it is not taking a charge
Probably should change the topic now since this has nothing to do with fastboot. Simply having cmd open with stuff typed in it won't do anything to your phone.
gpz1100 said:
The problem is, I think in certain modes - such as fastboot, the charging code isn't present. If you leave the device unattended, it drains and drains, even if plugged in (notice no charge light in recovery mode either, when plugged in). As stated, if the voltage falls too low, it won't accept a charge. There's probably some way of reviving the battery, but why bother. Hopefully the OP learned his lesson.
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Oh believe me I have learned my lesson lol.
ENCXBG1 said:
Lithium chargers have a built in safety that will check for minimum voltage before attempting to charge the battery. The EVO has this safety mechanism built in. The method to bring the battery back is to charge it in a dumb charger until the voltage reaches high enough for the EVO to recognize it as a proper battery and then charge it. I've never had to do this on a mobile battery but have done it a few times on Lithium Polymer packs for R/C planes. Some cheap Chinese chargers don't check voltage before charging. You could try jumping the terminals from a good pack to the dead pack for a few minutes being careful to jump the exact same terminal on both batteries. It's worth a shot. Excessive discharge can ruin the battery life going forward but you won't really know until you try. I would monitor both packs for excessive heat just in case but in all likelihood you'll be fine connecting them for a few minutes to boost the voltage on the dead pack. You can always get a two pack of batteries and an external charger on eBay for around $20.
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Definitely good advice. I'll have to try this for sure
sirmx said:
Probably should change the topic now since this has nothing to do with fastboot. Simply having cmd open with stuff typed in it won't do anything to your phone.
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I didn't think it did but I like I said in the OP I was so shocked to see this had happened when I came home that I really wasn't going to rule anything out.
Im looking for a Battery Case for my HOX.
I can see all of them, or most of them, got an on/off button. Why?
As an extended battery, I would assume both the case and the phones battery, got a connection that would make them like one battery...
When I buy a case, will I be able to have the case on at all times? And if I then charge via the phones USB port, will be case charge aswell? And the other way?
Thanks!
12lane12 said:
Im looking for a Battery Case for my HOX.
I can see all of them, or most of them, got an on/off button. Why?
As an extended battery, I would assume both the case and the phones battery, got a connection that would make them like one battery...
When I buy a case, will I be able to have the case on at all times? And if I then charge via the phones USB port, will be case charge aswell? And the other way?
Thanks!
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No I don't think the batteries combine together to create one large battery. A battery case is basically a power source, where your phone recharges from, and the amount of mA is just an indicator of it's capacity. The on/off button is used when you want to recharge, or want to stop recharging. Cases are rechargable.
much signau
Then I will be able to always have the case on, and just charge the case. My phone will then, hopefully, most of the time, have full battery.
It will be like always having my phone in the charger. Will that hurt my battery?
On the battery pack cases (ibison, etc) Is there a way to access the battery of the case
first before accessing the HTC battery?
For example if you put in a fully charged HTC one and then turn on the battery pack will it draw
from the battery pack or will it draw directly from the HTC one and then the battery
pack recharges the phone?
I am hoping that you can run directly from the battery pack case.
CC
They're simply a power source. Instead of a wall to plug into the phone is plugged into the case/pack. I see a lot of them have a switch you press to close the circuit and start charging the phone. To do what you are suggesting I would assume a kernel edit or hard mod would be required. I may be wrong though.
PcFish said:
They're simply a power source. Instead of a wall to plug into the phone is plugged into the case/pack. I see a lot of them have a switch you press to close the circuit and start charging the phone. To do what you are suggesting I would assume a kernel edit or hard mod would be required. I may be wrong though.
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It would take some kernel mod to draw from external only. It's doable in the Linux roots, I just have never seen anyone do such a thing on any of the devices I've owned. I'd also be a little leery about whether or not an external case could reliably provide enough voltage to run the phone, but if it works, it would be pretty neat.
You'd also face the problem of the kernel being unable to detect the external battery's capacity and switch over to internal power + charging, so you'd best have a watchful eye!
great
Rirere said:
It would take some kernel mod to draw from external only. It's doable in the Linux roots, I just have never seen anyone do such a thing on any of the devices I've owned. I'd also be a little leery about whether or not an external case could reliably provide enough voltage to run the phone, but if it works, it would be pretty neat.
You'd also face the problem of the kernel being unable to detect the external battery's capacity and switch over to internal power + charging, so you'd best have a watchful eye!
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If this can be done the internal battery will virtually remain brand new. That would be a great accomplishment.
The question is, is it doable..................
CC
cc999 said:
If this can be done the internal battery will virtually remain brand new. That would be a great accomplishment.
The question is, is it doable..................
CC
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No, not really. Unless you could fully d/c the battery, you'd still get at least some wear, and leaving a battery idle doesn't preserve it in the slightest. If you want to preserve a battery, drop the charge to 40% and leave it in a cool, dry refrigerator. Your battery is still going to suffer all of the temperature-related wear and tear which is what helps send most batteries to the grave.
So my z play battery is acting up, mostly it dies suddenly from ~50%, but does some other strange things too, so I'm thinking its time to change it. Anyone have to change theirs out yet? What battery did you choose? I've seen Chinese knockoffs, OEM batteries and these so called "premium" x-longer batteries, has anyone tried those out before?
Attached pic of battery use. Quick drop off and guick recharge all around 50%
andy55 said:
So my z play battery is acting up, mostly it dies suddenly from ~50%, but does some other strange things too, so I'm thinking its time to change it. Anyone have to change theirs out yet? What battery did you choose? I've seen Chinese knockoffs, OEM batteries and these so called "premium" x-longer batteries, has anyone tried those out before?
Attached pic of battery use. Quick drop off and guick recharge all around 50%
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with batteries on these recent phones I would try to stick with OEM. Long ago with the removable batteries, I experimented widely, but for some reason, not now...
I would also be tempted to play with that battery by draining if completely a couple of times, but it may just have a bad cell in it. Was your most frequent charge by slow? of fast?
I've had it drain a few times and messed around with it, with really no change. At first I thought it was due to the ROM, for example it started when I'd plug it in to charge, and it wouldn't recognize being plugged it, I had to unplug then plug it back in to get it to charge right away, so its been this way for a little while. Maybe I'll get both and see how they compare and share my results. I've read good things about the x-longer batteries
Sorry forgot to add, I always charge it with the turbo charger it came with
andy55 said:
I've had it drain a few times and messed around with it, with really no change. At first I thought it was due to the ROM, for example it started when I'd plug it in to charge, and it wouldn't recognize being plugged it, I had to unplug then plug it back in to get it to charge right away, so its been this way for a little while. Maybe I'll get both and see how they compare and share my results. I've read good things about the x-longer batteries
Sorry forgot to add, I always charge it with the turbo charger it came with
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My bet is your battery has a bad cell. Whether fast chargers cause this or not is anybody's guess. Grab a youtube teardown vid and go for it. (replace the battery)
andy55 said:
I've had it drain a few times and messed around with it, with really no change. At first I thought it was due to the ROM, for example it started when I'd plug it in to charge, and it wouldn't recognize being plugged it, I had to unplug then plug it back in to get it to charge right away, so its been this way for a little while. Maybe I'll get both and see how they compare and share my results. I've read good things about the x-longer batteries
Sorry forgot to add, I always charge it with the turbo charger it came with
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Would be really interesting to see your feedback on those batteries. I've seen those reviews too, but they were too good to be true, had even the impression the sellers making them up.
Just ordered an x-longer, coming from Germany so hopefully in 2-3 weeks I'll have it. Only a few bucks more then an OEM battery, so I'll give it a shot
andy55 said:
Just ordered an x-longer, coming from Germany so hopefully in 2-3 weeks I'll have it. Only a few bucks more then an OEM battery, so I'll give it a shot
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Where did you get the x-longer battery for Moto z play ?
I am from India and can't find original Motorola gl40 battery. The ones available on Amazon are off brand and I am.not sure whether to use them.or not.
13MeePwn13 said:
Where did you get the x-longer battery for Moto z play ?
I am from India and can't find original Motorola gl40 battery. The ones available on Amazon are off brand and I am.not sure whether to use them.or not.
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I ordered it off of ebay, and it was ok. I dont have my z play anymore but the battery was finicky with charging, it would refuse to charge to full at times, but it did last as well as the oem one. maybe it was due to an issue with my phone, but overall it was a pretty good battery
andy55 said:
I ordered it off of ebay, and it was ok. I dont have my z play anymore but the battery was finicky with charging, it would refuse to charge to full at times, but it did last as well as the oem one. maybe it was due to an issue with my phone, but overall it was a pretty good battery
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ok thanks. i decided to go for an OEM battery replacement only. It is time taking but hopefully will be worth it.
Hi guys. What do you think about power cases for S9. For example zerolemon
https://zerolemon.com/products/galaxy-s9-plus-battery-case-5200mah
I have one. it is not that big. you can use phone with one hand. i like it
blackbunny96 said:
I have one. it is not that big. you can use phone with one hand. i like it
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What Brand and model do you use?
My concern is internal battery life span. I think that power case works just like you would keep your phone connected to the charger all the time. When battery drop by 1% it will be charged and all that again and again. Can it be controlled by app that for example phone won't start charging battery before will drop to 30% and then will stop charging at let's say 95%. Can it be done on unmodified system or it would need custom kernel to support that?
kris_l said:
What Brand and model do you use?
My concern is internal battery life span. I think that power case works just like you would keep your phone connected to the charger all the time. When battery drop by 1% it will be charged and all that again and again. Can it be controlled by app that for example phone won't start charging battery before will drop to 30% and then will stop charging at let's say 95%. Can it be done on unmodified system or it would need custom kernel to support that?
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I have a no brand case but it looks exactly like the one in the link. If you want to charge the phone from case you have to press a back button on case. It will not charge if you don't press that button