hi guys.
im trying to build a charger for the tytn that would charge from a 9v battery rather than using the wall charger so that i can use the tytn when im trekking (which i do a lot).
ive used a 7805 linear regulator to pull down the output voltage of the 9v battery to 5v @ 1 amp as specified on the wall charger. ive also hacked the mini usb cable to short pins 4 and 5 so that the tytn draws power from the battery pack.
the problem i face is this:
the tytn does seem to draw power from the battery pack and charges from 90% to 100% in a matter of minutes. but once the battery meter goes below 90%, no matter how long i connect the tytn to the charger it refuses to charge. but the indicator light stays orange (or amber) and the battery status says its charging, but still the tytn continues to lose power over time. any ideas why this is happening? or what i am doing wrong? any help would be greatly appreciated... thanks in advance!
My guess is that you are trying to use a PP3 type small rectangular 9v battery. If so you will find that the battery can't supply enough current to charge the unit. If you look in the Magician forum here this seems a much better alternative, as a decent set of NiMh AA batteries can supply 2700mAh, which should be more than enough to charge your TyTn.
thanks man! will try it out tomoro.. did that before i hacked the cable.. havent tried since... will do it and post what happens.! cheers
nope! it still doesnt work
i tried connecting 4 1.2v NiMH batteries directly to the hacked usb cable and the orange led comes on and the battery status says charging... but still it loses charge.
i also tired using 4 AA alkaline batteries with a diode to pull down the o/p voltage and the results are same as the above...
the AA battery pack output was 5.2v @ ~1.2A which is pretty much the same as the wall charger
I got this: http://www.boxwave.com/products/batteryadapter/index.htm
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but it barely charges TyTN, very slowly. Is TyTN that power hungry? I don't know. Been using 4x2700mAh.
damn!
well there must be something im doing wrong! i cant figure out what though... it cant be the input voltages or the current.. and the cable i use is the one with pins 4 and 5 shorted.. why the hell doesnt it work???
can anyone help me? point me in the right direction????
My TyTN did charge some but faster in the beginning and soon almost stopped charging, maybe the voltage drops as batteries drain and TyTN doesn't like that or maybe 4x2700mAh is still way too small for TyTN.
alright that might have been the reason, so this is my workaround.
i connected 2 9V batteries in parallel with the set 4 1.2V NiMHs.. after passing this through a diode i get an output voltage of around 5.3V @ 1.3A.
the connection in parallel helps maintain the voltage of the battery pack at a level more than that of the tytn and prolong the time for a voltage drain.. so in theory the tytn should atleast jump from say 60% to 70% and the diode should prevent the tytn from charging the battery pack.
inspite of all this, the result remains unchanged! tytn led glows orange, battery status is charging and the phone loses charge!
what the hell is happening here?!?!?!
check this out:
http://www.aximsite.com/boards/mobility-site-news/211196-gomadic-pack-light.html#post1522281
When I go away and don't have ready access to power (camping etc.) I use one of these Clicky.
I have found they work fine. Only thing I would say is that the 3 to 5 charge cycles is optimistic, I find I get about 2 charges out of a set of 4 batteries.
as far as I remember the 7805 is a 1A max voltage regulator, I would suggest trying the 78S05 - same pinout, 2A version, it seems to be the delivered current which affects charge rates on the phones.
or you can put in paralel on a heatsink few 7805's. Don't count on 1A for 7805, is gonna die quick, be more conservative )
Related
I have a 2 USB port car charger made by capdase in my car.
It outputs 1A, so its around 0.5A each port.
Yesterday I ran out of battery and had only 15%, so while driving I plugged it to the charger.
While talking the phone, it still went down to 14% and it took a long time till it managed to gain some percents. During that time only a voice call was made.
And I was only making a voice call....
So during 1 hour drive, I only gained about 10%.
Now Im about to go for a 1 week trip where I'll be massively using my phone as a GPS and I wonder if it'll even make it through the day.
What would you suggest me to do?
Maybe should I use a different kind of charger? would it make any difference..?
I hope to hear your opinion,
Thanks.
I've heard others having similar problem while using power hungry applications while charging, the power supplied by charger isn't enough to run the device so battery has to pitch in as well.
I use a car charger that claims 1 amp output (single port) and it will charge (albeit slower) while I play graphic heavy games.
jzmtl said:
I've heard others having similar problem while using power hungry applications while charging, the power supplied by charger isn't enough to run the device so battery has to pitch in as well.
I use a car charger that claims 1 amp output (single port) and it will charge (albeit slower) while I play graphic heavy games.
Click to expand...
Click to collapse
Same here, i use a belkin 1 Amp charger in my car connected to my Brodit holder.
While using Navigon and before Sygic nav. both where charging.
Does it really supply 1A to the device?
because when I used my capdase with a battery monitor widget, it would receive a current of max 0.5A, and usually less than that...(I guess due to battery drain)
is this the one?
http://www.ebay.com/itm/BELKIN-USB-...ories_MobilePhoneChargers&hash=item25674e8ada
eranyanay said:
Does it really supply 1A to the device?
because when I used my capdase with a battery monitor widget, it would receive a current of max 0.5A, and usually less than that...(I guess due to battery drain)
Click to expand...
Click to collapse
The stock AC charger output is 1 amp, so it must take more than 0.5 amp.
my charger is a traveler charger, it gives 0.7A :s
I hope that belkin is good, i'll give it a try..its cheap so I dont mind testing
Same here
Using navigation on my trip to greece, and putting a phone on USB charger from car power supply, battery was draining, not charging. so, I used navigation, than when driving 50 km on highway i switched off navigation in order to get some energy, and then again turn it on before I need it (I was watching at my km scale, ).
The problem is nearly always not what the charger can supply, but whether the charger complies with the new USB charging standard which shorts d+ to d- to indicate it is a high capacity charger rather than a typical PC USB port trickle charge.
You can determine if your charger is compliant by plugging it into the phone and choosing settings, about, status, and see if the phone indicates "charging (AC)" or "charging (USB)". If AC, the phone will take 800mA, if USB, probably more like only 300mA.
I just took a look at my Better Battery Stats info and noticed a bluetooth and pbap related wakelock. As you can see 51 minutes, over 3 events. This is invariably during my commute.
I currently have my car stereo set up to access my phonebook from the phone rather than store the phonebook in the stereo. I have a theory that this scenario is battery intensive. I'll test this by placing my phonebook in the stereos memory.
Were you using bluetooth during your trip? Is your phonebook stored in the bluetooth device or does the bluetooth device access it through your phone?
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I noticed that my phone will not charge the battery if it is too hot (30 degrees?). So if you drive with your phone exposed to the direct sun then it will probably not going to charge the battery or reduce the charging current.
Hi,
My Atrix does not have any Problems with charging when connected to my PC, but it just wont detect the external Battery i own.
It shows no reaction, when the Battery is plugged in via USB and then turned on.
When the phone is off and the battery is connected and turned on, the phone will boot, but still not charge.
I was trying to find out why the Phone won't accept the Battery so I measured the outgoing Voltage: 6,3 V
Note: 2 out of 2 other phones (1 running Android) detected the battery and charged from it without any issues.
The external Battery was really expensive since it comes with a large solar panel to charge it, so I really ought to get this to work!
Does anyone have any Idea what I can do to force my phone into USB-charging mode? Or how to make it detect the battery?
Greetings,
XxHunterxX
(running 2.3.4 with Gentop, rooted, unlocked)
I know
And I tested today. You must put resistor about 200OHM or just short data pins (2 and 3) in your charger or cable. I really recommend to put resistor. Interested thing is that after phone is connected you can remove resistor and charging will continue.
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Thank you VERY much for your effort!
Why wouldn't you recommend just shortening D+ and D- on the Type-A-side? what could happen? Wouldn't that just make the resistance infinitively high?
Also, Why does it work with other phones, if it's the battery's / cable's fault?
I know those are a lot of questions, but I would really apreciate it if you took the time to answer them.
Greetings,
XxHunterxX
Edit: just realised I misunderstood Zeljko. I thought by "short data pins" he meant to clip them off so they couldn't connect to the device
Of course he meant short circuiting them^^
Because shorting electronic circuit could damage it. Better safe than sorry. I tested today and even 330kOhm works.
Other phones obviously doesn't care about data pins. Probably Motorola wish to protect phone from low quality third party chargers.
I followed your advice and soldered a 200 Ohm resistor between D+ and D- coming from the Mirco-USB-side.
I just insulated the D+ and D- of the Type-A-USB-side
I actually followed a REALLY useful (German) Guide for things of this type: Sorry It appears I can't post links...
Sadly, I can't test wether it works at the moment, because my phone is being repaired (touchscreen broken).
If you are interested I can tell you wether it works, as soon as I get my phone back.
regards,
XxHunterxX
I know it works, I tested by myself
Could you send me link? I think you can post link around code tag or picture or just figure out somehow
Is your charger a Minty Boost? I have a Minty Boost and it always over heats when i try to charge my Atrix :\
:EDIT: Also I tried shorting out D+ and D- with no avail. It charges but quickly overheats
heyitsaustin123 said:
Is your charger a Minty Boost? I have a Minty Boost and it always over heats when i try to charge my Atrix :\
:EDIT: Also I tried shorting out D+ and D- with no avail. It charges but quickly overheats
Click to expand...
Click to collapse
It's cheap chinese charger. I just used it once for testing and I didn't noticed any overheats. I bought it for cycling but I'm traveling a lot and unfortunately I don't have time for long ride.
http://www.ebay.com/itm/28085135538...X:IT&_trksid=p3984.m1438.l2649#ht_8694wt_1396
heyitsaustin123 said:
Is your charger a Minty Boost? I have a Minty Boost and it always over heats when i try to charge my Atrix :\
:EDIT: Also I tried shorting out D+ and D- with no avail. It charges but quickly overheats
Click to expand...
Click to collapse
If your charger overheats then the worst you can do is short the D+ and D-!
Because then your phone will detect it as a charger and will draw not only 500mA, but even more so your charger will overheat even faster.
You should probably just buy a charger that isn't so cheap
From my experience with Sony's charging dock on the Tablet Z, I found that it charged quite slowly as compared to a usb connected charge. I would see an overnight charge which is roughly 8 hours to only charge 30% to 85% whereas a direct usb charge would give a full charge within an hour and a half. Just wondering cause I've ordered the Z2 and hoped that the dock wouldn't be such a bad experience cause I don't want to bother with the flaps unless I have to.
I picked up a generic dock from Amazon. Seems to be 'straight through' connections, so chargers as fast as the charger will allow...
Sent from my D6503 using Tapatalk
xAjCx said:
From my experience with Sony's charging dock on the Tablet Z, I found that it charged quite slowly as compared to a usb connected charge. I would see an overnight charge which is roughly 8 hours to only charge 30% to 85% whereas a direct usb charge would give a full charge within an hour and a half. Just wondering cause I've ordered the Z2 and hoped that the dock wouldn't be such a bad experience cause I don't want to bother with the flaps unless I have to.
Click to expand...
Click to collapse
About 2 hours or so from 20% to full. Full speed.
Lostatsea23 said:
About 2 hours or so from 20% to full. Full speed.
Click to expand...
Click to collapse
+1
The magnetic charging port is definitely slower but mine still charges in a few hours on the dock next to my bed(not sure how many amps the wall adapter is). In my car it seems about the same off the 2 amp charger(so I assume the other is only 1-1.5 amp) with much heavier drain(bright screen, BT streaming, navigation, etc.).
Sent from my D6503 using Xparent Red Tapatalk 2
A lot will depend on the quality of the cable as well. I have the no name dock from amazon and it is slow to charge with the supplied short cable but very quick with the Sony one
Sent from my D6503 using Tapatalk
It depends on the charger and the cable, to charge a 3200 MAH battery for the z2
a minimum 2 amp charger and 38 pin cable is definitely a must !
My magnetic charging port charges at a rate of 1% every 1 1/2 mins, 2 1/2 hours for full charge according to my battery stats which seem about right.
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Thanks for all the replies guys, I just can't wait to get the phone. I've been on the fence with it for some time now between the Z2 and the S5 (now the S5 Active that just came out). I just wanted a change and the two devices kinda broke even with specs and reviews for me. :highfive:
anyone yet been that crazy to use a 3A charger? Snapdragon S801 should be capable of that.
kjhughes said:
I picked up a generic dock from Amazon. Seems to be 'straight through' connections, so chargers as fast as the charger will allow...
Sent from my D6503 using Tapatalk
Click to expand...
Click to collapse
I did the same, but it takes all night to get 80% whereas the direct USB takes a couple of hours to 100%
Now after i got the dock (cheap one from Ebay) i do have the same Problem!
Takes 7hours to charge from 0% to 75%
using Stock rom + Doomkernel v9
Ookay... I just connected the Mulitmeter between smartphone and dock (it's a hassle.... Hacked USB cable would be nice....)
The official Sony wallcharger (1.5A) is charging the dock and Smartphone with 800-850mA.
I tried Doomkernels Fastcharge and forced constant AC =roughly 1300mA.
Strangly when I set it to 1500 or 2000 in Faux app it falls back to 800mA.
The battery was 85% charged when I made those tests.
Haldi4803 said:
Ookay... I just connected the Mulitmeter between smartphone and dock (it's a hassle.... Hacked USB cable would be nice....)
The official Sony wallcharger (1.5A) is charging the dock and Smartphone with 800-850mA.
I tried Doomkernels Fastcharge and forced constant AC =roughly 1300mA.
Strangly when I set it to 1500 or 2000 in Faux app it falls back to 800mA.
The battery was 85% charged when I made those tests.
Click to expand...
Click to collapse
I thought fastcharge applied only to micro usb port
Yesterday I got a non original docking station from Amazon.de (€9,40 + delivery costs) - from 42% to 95% chargin time was 1h55min.
please visit this thread:
http://forum.xda-developers.com/showthread.php?t=2789564
Yeah,,,, so.... i made a reallife test!
Set FauxApp to "Constant AC" in FastCharge options.
in 5 hours it charged 16% xD 3.2% Per hour.
Then after that i set to "Custom" 1200mA
Charged from 76% to 100% in 3.5hours
tonight i'm trying to empty the phone (Unreal Epic Citadel might be a good idea, or maybe GFXbenchmark Battery Test....) and set to Custom 1500mAh and see what happens.
https://www.qualcomm.com/products/snapdragon/smartphones/sony-xperia-z2
it supports quick charge 2.0 and Sony should enable it
mariosraptor said:
https://www.qualcomm.com/products/snapdragon/smartphones/sony-xperia-z2
it supports quick charge 2.0 and Sony should enable it
Click to expand...
Click to collapse
So.... anyone has one of those QuickCharge 2.0 Adapters Mentioned here ?
https://www.qualcomm.com/products/snapdragon/quick-charge
i wonder if it would charge faster than the Sony 1.5A charger.
edit:
Phew... dem chargers! 18W and 30W editions!
5V 4A
9V 2.2A
12V 2.5A
20V 1A
Quick charge 2.0 does only use 9V sporadically doesn't it ?
Edit2: and 9V 4A .... wow
I wish. I could do charging in 90 minutes. It takes twice as that now.
Does the LG OEM desktop battery cradle charger quickcharge the battery if you use the LG OEM fast charger?
The desktop cradle from the promotion and the original charger included with the phone.
I thought QC was associated with the CPU chip and how it controls the voltage as the associated battery charges. Since there's no CPU chip in the desktop charger, I would not think it would.
waylo said:
I thought QC was associated with the CPU chip and how it controls the voltage as the associated battery charges. Since there's no CPU chip in the desktop charger, I would not think it would.
Click to expand...
Click to collapse
Well there's some kind of "intelligence" in the desktop charger. There's a button and 3 LEDs that indicate the charge level. During charging it flashes how charged it is and how much is being charged (ie totally dead, 1 LED flashes; 1/3rd charged 1 solid LED, 1 flashing LED; etc), and with no charger attached if you press the button the charger lights up how charged the battery inside it is. Of course I'm not sure how that is handled, whether there is a chip or what and even if there is a chip, whether it's capable of whatever is required for the QC logic; but it's why I asked.
Here's an easy way to figure it out. If it takes ~80min to go from 0-100, there's QC (v2.0 at least) in play. If it takes longer, it's not doing fast charging.
During charging just wake the screen, there is a message stating charging, or fast charging, then you will know.
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kms108 said:
During charging just wake the screen, there is a message stating charging, or fast charging, then you will know.
Click to expand...
Click to collapse
Ummm I think you misunderstood the question. We're talking about the desktop battery charger. You charge the battery in it and the phone is not involved. No screen. No notification.
I haven't tested the 80 minutes thing but I'm guessing it's not quickcharging.
erikk said:
Ummm I think you misunderstood the question. We're talking about the desktop battery charger. You charge the battery in it and the phone is not involved. No screen. No notification.
I haven't tested the 80 minutes thing but I'm guessing it's not quickcharging.
Click to expand...
Click to collapse
I through you mean the official desktop stand charger you put the phone on, so you are referring to the battery cradle. ok I understand.
I decided to finally open my cradle and extra battery and hooked it up to my QC3.0 charger along with a volt/ammeter. It pulls at 1.5A, 5V only. So decidedly NO, it is not a QC capable chargee.
Hello, I just got this phone a couple of days ago, basically i migrated from a OnePlus 6 to this Nord 2 and I'm liking it very much so far for the price all things considered, tedious bugs and all.
The gist of it, is it normal for it to charge this slow? I'm using my old 20w dash charge adapter, because imported it from the UK, it came with said adapter and my country does not support that kind of wall plug outlet and I refuse to use an adapter/extender because it won't stick to the wall it's just too heavy.
Did some reading, and I disabled optimized night charging/high performance mode. I figured using an old adapter would be slower than the new one, but are those readings normal?
Also i noticed the Warp Charge animation appears on lock screen but just the blue bubble then it disappears, no Warp Charge logo.
I plan on getting both wall and car warp chargers, in the meantime I'll be using my regular 20w dash chargers.
Thanks in advance.
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I can at least confirm that the original second (and last?) generation carplug (12V charger) is also veeeeeeeeeeery slow. It takes at least 2,5 hours from 0 to 100. The 230V plug charges 0-100 in exactly 29 minutes
You need S-VOC/DASH/WARP charger.
exis_tenz said:
I can at least confirm that the original second (and last?) generation carplug (12V charger) is also veeeeeeeeeeery slow. It takes at least 2,5 hours from 0 to 100. The 230V plug charges 0-100 in exactly 29 minutes
Click to expand...
Click to collapse
Exod_G said:
...
View attachment 5635961
Click to expand...
Click to collapse
I'm getting 500mA (2.5W USB base current) when asleep, and 1A (5W) when awake. It's definitely buggy, should always pull 1A even when the screen is off. The phone doesn't seem to have PD, so there's no way to get 15/18W on ordinary PD charger.
Remember that accubattery only reads from a single cell of your battery;
The OPN2 has 2 cells and charges both simultaneously, so it's likely accubattery is only reporting half speed, to one cell, and isn't detecting charge to the other cell, which is half of the battery in this case.
For example, accubattery will likely report your battery health/capacity is only 50% (more often lower), because each cell is 2250 mah, and the total advertised design capacity of the OPN2 is 4500 mah, but is really 2250 mah per cell, and has 2 cells.
This is part of oneplus's warp charge technology, which is really just a rebrand of their sister company's, but it's essentially a 32.5w charge to both cells, which is much easier than providing 65w to a single cell.
Also, do note warp charge only works with the official red cable and the official oneplus charger provided in the box, as the charging circuit in the cable and charger will limit your speed with third party charger/cables as they have not been verified to handle these charging speeds.
Funnily enough even if you have an OPPO cable and charger, which utilizes the same technology, warp charge on oneplus phones still won't activate and it'll charge at a much slower 20w (10w per cell)
Zombnombs said:
Funnily enough even if you have an OPPO cable and charger, which utilizes the same technology, warp charge on oneplus phones still won't activate and it'll charge at a much slower 20w (10w per cell)
Click to expand...
Click to collapse
VOOC 2.0 (20W 5V/4A) vs S-VOOC 2.0 (65W 10V/6.5A). The OS reported current is always current over both cells, whether it be parallel or in series depends on VOOC version.