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So after looking at the teardown and assembly info online, I've started to percolate a notion in my head to double the battery capacity of the NC.
My thinking is that if you sacrifice a bit of structural reliability by cutting out the portion of the plate the battery is on, you could cram another NC battery, scavenged from the ruins of a dead one, into there and wire it in parallel. The end result would be a heavier, probably slightly girthier, NC, with 8000mAh of life. I don't care how bright your screen is or how many rooted roms you're using, that fool will last a looooooong time.
My question is primarily for electrical folks here: any pitfalls to watch out for? Do we know if there's any circuits in the battery itself that might interfere or is the battery unit just a collection of Li-Ion packs?
Of course if you think I'm a mad scientist who must be stopped at all costs, please feel free to chime in too. Just stand over there on the scorched X on the floor next to the death ray...
Hmmm if the kernel allows for a charge higher than the one its in now. Like the evo charging issue with extended battery
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BrianDigital said:
Hmmm if the kernel allows for a charge higher than the one its in now. Like the evo charging issue with extended battery
Sent from my PC36100 using XDA App
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Don't believe I've heard of this. Whassat?
loganthered said:
Don't believe I've heard of this. Whassat?
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Like he said: Whaa? I had an EVO [fun] but couldn't stand the less than less-than-stellar battery life. I'm talking dead by 4pm crap. Bought an extended battery and noticed no improvement. Is that why? Finally downgraded to an EVO shi[f]t [less fun] but I'm not getting the kind of improvement I would've expected going from a 4.6 to 3.6 inch screen, after all aren't they the biggest battery sucks?
sounds too scary for me!!! I think I'd rather just replace the battery (if it is possible to purchase one...)
The main issues would be....
1. extra strain on the charging circuit.
2. the possibility of battery imbalance...leading to extra strain on charging circuits...possible overheat...boom
3. possibility of overheating due to combined heat from 2 batteries during heavy charging...boom.
make sure all of those are taken care of and you are golden. Personally, I would source a larger amperage battery with similar dimensions and wire it in.
I like the idea, carry on
Why not just charge thru USB? Car adapter or external power pack?
UCSB said:
Why not just charge thru USB? Car adapter or external power pack?
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Because that defeats the purpose of bringing it a long for camping ;p or being marooned on an island with a black fog monster and a bunch of other idiots.
Just get the Energizer XP8000 and a little duct tape and you can get about 10+ extra hours out of it.
ExploreMN said:
Just get the Energizer XP8000 and a little duct tape and you can get about 10+ extra hours out of it.
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Which model do you recommend?
Duck brand duct tape is pretty good
Gorilla works well too
ExploreMN said:
Just get the Energizer XP8000 and a little duct tape and you can get about 10+ extra hours out of it.
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I have one of those, and yes it will charge the Nook Color on the go.
Just a little heads up on the topic, android stores battery info in the boot partition I believe and that's what tells the kernal the status of the battery, I.e. a double capacity battery would report as fully charged when only half charged if you didn't Pachelhoffer the is/kernal and such to match the new capacity.
Correct me if I'm wrong!
Sent from my NookColor using Tapatalk
use external battery pack
deadbot1 said:
The main issues would be....
1. extra strain on the charging circuit.
2. the possibility of battery imbalance...leading to extra strain on charging circuits...possible overheat...boom
3. possibility of overheating due to combined heat from 2 batteries during heavy charging...boom.
make sure all of those are taken care of and you are golden. Personally, I would source a larger amperage battery with similar dimensions and wire it in.
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These are excellent points. I would avoid hacking the internal circuitry and instead get a hold of an external battery, design a circuit to drop the voltage to 5v and use the usb cable to charge up the battery. Trying to charge two batteries in parallel is asking for trouble because of the imbalance problem.
d.v said:
Which model do you recommend?
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For the price, I got the XP1000 I think (its in my backpack which I left at work) I actually got it for my Epic to charge when I was out and about and moved around too much to use a wall charger. Works on the Nook too, but I haven't tried a real charge to see how much I get out of it. I would guess if I can charge my Epic 2-3 times that I could at least recharge the Nook once completely.
Warning - be careful screwing around with the internal LIPO battery and circuits. If something damages the single cell battery or voltage gets to low, and you try to add voltage and amps to it, it might puff up and if it does its flammable!
Its a single cell LIPO pack like used in rc airplanes and cars! They are very finicky to say the least when it comes to discharging and charging. Let alone if you want to hook up another one to it and do it wrongly! People have burnt down there whole house at night just over charging one and not babysitting the charging progress!
It is a lithium-polymer battery and not a lithium-ion!
They can catch fire when they puff instantly, many videos on youtube!
Correct me if im wrong, but the battery has a built in monitor and charge stopper so if you were to charge both the batterys via the micro usb slot you would need some sort of trickle charge/sbc kernel mod to overcome this which could be a real pain in the arse and not to mention dangerous considering trickle charge has been known to damage batteries on occasion and we do not have an easily replaceable battery.
I have this unit, http://www.amazon.com/gp/product/B0038VQET4. It will completely charge the battery of the nook.
jerrykur said:
I have this unit, http://www.amazon.com/gp/product/B0038VQET4. It will completely charge the battery of the nook.
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And a lot of other things, I'd gather, judging by the number of "tips" it comes with.
Do you have any idea if it will charge an NC more than once?
http://list.qoo10.sg/g/411059100
i really laughed at this one. Sadly there are people who believed a rip-off piece of crap will work.
They make useless things and sell it very expensive and unfortunately some people go and buy them.....
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But reviews tell that it works? Maby ot isnt fake :0
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That actually is a true product used it on my galaxy s2 before ;D it kept my batt cooler which made the battery life span longer somehow
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Unconvinced....
theofficialpimp said:
That actually is a true product used it on my galaxy s2 before ;D it kept my batt cooler which made the battery life span longer somehow
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At the absolute most it is a very thin and not very useful heatsink, which *could* reduce the battery temperature a little, however the claims that is reduces electrical interference, somehow converts negative ions etc is nothing short of fiction.
A small section of foil tape stuck to the battery would so pretty much the same thing, and probably wouldn't cost $20 or so :good:
The sort of person who buys this product is also the sort of person who believes their webcam is always watching them and they have fairies living in their garden
so if the idea really works its all because this piece of foil is giving a heatsink effect? how does dispersing heat helps at battery life?
Heatinks 101
Life'sGood said:
so if the idea really works its all because this piece of foil is giving a heatsink effect? how does dispersing heat helps at battery life?
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The harder the phone is working, the hotter it all gets, including the battery pack as more current is drawn from it or the charge circuits are trying to draw large amounts of current from the phone charger. This is all monitored by the phone to control the maximum levels, and to throttle back various activities as the temperature rises - hot processors break down internally and overheated batteries can catch fire (especially so Lithium-Polymer and Lithium-Ion types).
This is why your 4X HD gets laggy when playing games etc for long periods of time and why it goes into "slow charge" mode when hot.
I don't recommend putting the phone in a refrigerator to counteract this
Is there an actual harmful effect on a Li battery caused by the magnet in a leather case?
I have a leather case for my Z1 and I want to use it but I won't use it if the magnet in the lock is going to knacker the non removable battery.
Sent using my Z1 & Tapatalk 2 and not that abortion of a XDA premium app that I paid for and now shames the community it serves.....
The active ingredients in a Li-Ion battery are Lithium and Carbon. Lithium itself is an alkali metal, and is not magnetic, therefor adding a magnetic charge to it will not do anything. The Carbon inside a Li-Ion battery is Propylene carbonate, which is an organic carbon mixture, and is classified under low grade magnetic field. This means that any consumer grade magnet won't affect it.
If you're near high powered chemical magnets or industrial applications of magnets for scientific testing, then you may have an issue, however most laboratories don't allow electronic devices inside a controlled environment.
Any Neodymium magnet you throw at your phone, those are the silver, powerful "rare earth" magnets, or lesser powerful magnet found in most fridge magnets and wallets/cases, won't affect your phone in a negative way.
Source: I'm a scientist.
Wiltron said:
Source: I'm a scientist.
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I am glad the source is reliable but the phone it self contains metal parts and use magnets around can influence the phone reception and even if this is not harmful to my phone I will avoid magnetic contact anyway.
eclyptos said:
I am glad the source is reliable but the phone it self contains metal parts and use magnets around can influence the phone reception and even if this is not harmful to my phone I will avoid magnetic contact anyway.
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His question was about the battery.. not the other parts of the phone.
Even still, the phone is magnetically shielded.
Unless you're around extremely powerful magnets, such as working in science labs and/or electromagnets in junk yards, you don't need to worry about the tiny extremely weak magnet in the case.
Wiltron said:
His question was about the battery.. not the other parts of the phone.
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It not make difference.
Wiltron said:
Unless you're around extremely powerful magnets, such as working in science labs and/or electromagnets in junk yards, you don't need to worry about the tiny extremely weak magnet in the case.
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What about LCD? I got bad experience with a small magnet, it can damage the screen.
eclyptos said:
What about LCD? I got bad experience with a small magnet, it can damage the screen.
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Again.. he is not asking about the LCD.. he is asking about the Battery.
LCD screens are not affected by any source of magnetism either. If they were then cases like these wouldn't be on the market.
Things like these also wouldn't be backed by large companies or be so successful:
http://www.niteize.com/product/Steelie-Car-Mount-Kit.asp
https://www.kickstarter.com/projects/studioproper/wallee-m-modular-magnetic-phone-mounting-system
Lets not forget that the phone itself has a magnet on the side of the device and a smaller magnet on the cable for the magnetic charging port. If you know anything about physics you'll know a current runs through the USB cable when it's charging the phone, which also doesn't affect it.
Holding a magnet up to an unshielded SnapDragon or whatever, or the mainboard, then yes, but these phones have aluminium shielding.
I don't really mean to revive an old thread, but I'm about to attach some rare earth magnets to my ravpower QI charger with an external battery. I'm assuming my external battery is lithium-ion based. I want to spread out the magnets so my phone can properly attach to it, but I wanted to make sure everything is fine first.
I googled another forum that explained that using magnets with lithium ion cells can potentially cause a dead-short.
"side impact will cause magnet to shift and possibly bridge to ground causing a dead short. a very bad thing to do with a li-ion cell. this could lead to venting with flames!"
I just recently got this and figured many of you have pointed me to some cool accessories that I would return the favor...
Amazon: https://www.amazon.com/dp/B013AB620C/ref=cm_sw_r_awd_MpO5vb43XEEP2
Price: $19
I know there are tons of wireless charger out there, but what I truely like about this one is the charging halo notification light that automatically dims and or turns off completely when in a dark room (shown in my video below). I got this charger in the bed room on a side table and once the lights go out, the charging notification light itself goes dark. It simply is a useful feature if you are someone sensitive to any light while sleeping.
Obviously this nor any wireless charger will not compete with the speed of the stock wall charger or other wired quick chargers, but for me it helps eliminate those "oops" situations. For example, I woken up too many time to find that in my last moments before crashing for the night I didn't actual plug the micro usb cable completely into my phone. With my luck it always happens on a day when you wake up late for work and will need your phone the most. I'm sure you all have done it at one point. Fun times.
I should add, even if you don't have your phone perfectly aligned on this charging surface it still charges with ease. I'm surprised how forgiving it is when compared to a original Google Nexus wireless charger which had to be absolutely perfectly aligned. That thing drove me crazy.
The one thing I'll warn is that this unit does not come a wall adapter (AC to DC invertor) so you either need to use the stock Samsung wall adapter or another one that has 2amp 5v output or higher. I tested it on a 1.8amp 5v adapter and it still worked, but that will lengthen the charge time. Can't say by how long at this point.
I got another CHOETECH wireless charger in my car and have no problems. So far I'm pretty impressed with this brand. Anyway, below are some pics and a video I made with Samsung video app....
https://youtu.be/MS5R0QWD5JE
This design looks similar to the Samsung Wireless Charging Pad. Cool accessory and the price $19 is tempting. The lighting thing is a gimmick. The only regret that it is a common single coil charger.
Here are some tests I read of both the Choetech Circle and the Samsung wireless charging pad from Talkandroid. All tests were done during a timed 30 minutes of charging with a few days in between and after various restarts of the Galaxy S6 Edge.
Choetech
30% -> 41% (with case) (11% increase)
30% -> 43% (with case) (13% increase)
75% -> 91% (without case) (16% increase)
05% -> 23% (without case) (18% increase)
Samsung
24% -> 43% (with case) (19% increase)
74% -> 90% (with case) (16% increase)
08% -> 21% (without case) (13% increase)
11% -> 31% (without case) (20% increase)
Frezi Evan said:
This design looks similar to the Samsung Wireless Charging Pad. Cool accessory and the price $19 is tempting. The lighting thing is a gimmick. The only regret that it is a common single coil charger.
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How is it a gimmick? While other chargers stay lit all day and all night (even when you're trying to sleep), this one automatically dims in darkness. I've heard plenty of people complaining about wireless chargers being obnoxious during the night due to their always-on LEDs, yet this one doesn't have that issue. I like the light. It's lit enough around the edge so that you can clearly see that you're charging your device (very helpful for my Nexus 7) and then it's out of sight when I'm laying down for bed.
I can see how the single coil aspect of it can be seen as a downside, but I honestly have no issue with using this charger vs the PowerBot charger I still own. Maybe this is just big enough that I always place my devices on the "sweet spot"?
What is great about that is you don't have to put the device exactly in the middle for it to work. That is really efficient.
magrendz04 said:
What is great about that is you don't have to put the device exactly in the middle for it to work. That is really efficient.
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It's a single coil pad and won't have a wide charging area, so you need to put at the exact central for better working.
st8chic said:
It's a single coil pad and won't have a wide charging area, so you need to put at the exact central for better working.
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It's pretty lenient. I haven't had any problems aligning my G3, G4, or Nexus 7.
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@nappent What case is it that your using?
partylikeaninjastar said:
How is it a gimmick? While other chargers stay lit all day and all night (even when you're trying to sleep), this one automatically dims in darkness. I've heard plenty of people complaining about wireless chargers being obnoxious during the night due to their always-on LEDs, yet this one doesn't have that issue. I like the light. It's lit enough around the edge so that you can clearly see that you're charging your device (very helpful for my Nexus 7) and then it's out of sight when I'm laying down for bed.
I can see how the single coil aspect of it can be seen as a downside, but I honestly have no issue with using this charger vs the PowerBot charger I still own. Maybe this is just big enough that I always place my devices on the "sweet spot"?
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I agree with you. A key feature of the T517 is the blue LED integrated into the base. The LED is connected to an ambient light sensor, a unique feature for a wireless charger. When a room is darkened, the LED automatically turns off in a surprisingly useful ability. It's good to have the sometimes distracting light dim itself as the ambient light falls as it prevents the glowing charger from commanding your attention while working at a desk. It could also help with sleeping if the device is used in a bedroom.
So far I have two wireless chargers, the the Nokia Wireless Charging Stand (DT-910) and the Anker Ultra-Slim Qi-Enabled Wireless Charging Pad. Most wireless charger output a maximum of 1A. The thing that differentiate Choe Circle Qi Wireless Charger from the rest of my wireless chargers is basically the indicator ring light which adds a cool factor.
The Nokia Wireless Charging doesn't work with the S6
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mydonose said:
The Nokia Wireless Charging doesn't work with the S6
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I have a Nexus 6. The CHOETECH wireless charging works both my S6 edge and Nexus 6. There is a built-in lightning sensor on the wireless charger that will automatically dim/turn off the indicator light when the room is dark. It works well as shown in the quick video below.
Anders81 said:
I have a Nexus 6. The CHOETECH wireless charging works both my S6 edge and Nexus 6. There is a built-in lightning sensor on the wireless charger that will automatically dim/turn off the indicator light when the room is dark. It works well as shown in the quick video below.
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I know. I meant the Nokia Charger [emoji4]
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I got this charger a week ago and it works really well. It is easy to position the S6 Edge correctly for charging and the ambient light sensor is a big plus (that's the feature that made me buy this product). I use my phone as an alarm clock and most wireless chargers have disturbing LED's. This one just dims the LED when the lights go out.
My phone is charged 100% every morning but I never checked how long it takes to get there.
Having been using this CHOE T517 qi charger for a month. Here are my general feedback:
The design is compact and extremely portable, the automatic dim-off design very impressive.
Charging good so far. I like charging overnight, I don't know the exact hours to charge 100% completely for my phone. But a thick case may slow down the charging speed, so it's best to take off the case if you have a case on your phone.
Seems the price drops a bit, two bucks cheaper than mine. (I bought it at $19.)
http://www.amazon.com/gp/product/B013AB620C
Anyway, not bad accessory for bed side.
How about the quality and charging speed? I had one Anker qi charger at 12 bucks only. It does seem to be made of metal vs plastic in the other ones.
nappent said:
I just recently got this and figured many of you have pointed me to some cool accessories that I would return the favor...
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Thanks for the review. My wife and I are both annoyed at any light while sleeping. I avoided the Samsung charger because of this. I just ordered two of these. Too bad they're on backorder til the 12th.
Hi,
I have the Mophie Juice Pack (wireless charging enabled battery case). I bought this one because there were a couple of reviews out there saying NFC still worked.
I'm finding that it doesn't work at all with the case on. Which is a big kick to the balls given it cost £100/$100.
Does anyone know of a way to boost the NFC? Either through software or some tinkering with the phone or case?
Thanks
Joe
It's likely that the few reviews you mentioned are paid or simply fake.
A lithium-ion battery is essentially thin metal foils with electrolytes in between. In addition to the metal in the battery, the wireless charger in the case also features a shield on the backside of the charging coil to protect equipment on the other side from interference from the rapidly fluctuating electromagnetic field of the transmitter in your charging pad.
With that much metal, no amount of boosting the power to the NFC antenna will improve reception, just as you won't be able to see through a brick wall simply by beefing up your flashlight.
Sorry.
Thanks. Mophie themselves said the case "could interfere with NFC." There's no "could" or "interfere" about it. It's solidly blocked as you describe.
I've returned it for a refund. Sad really as it really was a nice case. If NFC isn't a deal breaker for anyone I'd solidly recommend it.
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