Develop Bugs

[Q] Car Air Vent Holder / 2A Cigarette Charger

Hello,
I had both these items with my old i9000 which I included when I sold it.
Looking to get a fitted air vent holder for my dashboard, as well as a car charger.
Based on past experience with the i9000, the car charger needs to be a 2A charger so I can charge the phone faster, as well as have it keep charging with the screen on for navigation. (and yes, I am aware a higher amperage could potentially wear the battery, happy to take the risk )
I got the original 2A charger from dealsextreme, but I can only see weaker/crappier chargers for sale on there at the moment. A brief search of ebay hasnt shown any moulded/fitted holders yet.
Ideas?

The official Samsung car charger CAD300Ube is at 0.7amps. I've seen aftermarket chargers at 1a but I havent seen any at 2 amps

I just picked up the Rockfish premium charger that is 2A. Haven't true it yet though.
Sent from my GT-I9100 using XDA Premium App

I got a dual-port car charger from dealextreme and plugged a USB cable into the "ipad" port. It charges my SGS2 well and I do not notice any battery drain while I'm on a road trip using the SGS2 as GPS navigator. Well worth the $2 I paid for it.

I used one of these on my i9000 and will be getting one for my i9001
You can see the vent part you need to the right of the holder
http://www.dsldevelopments.com/brodit/holder/Samsung+Galaxy S II i9100-Brodit-Holder.asp

I bought a supposed 2 amp charger from deal extreme a while back. It wasn't 2amp. If you get one, test it to see what it actually puts through. The one I got was only .5 amp even though it was advertised as 2 amp.

How to check amp output? I have a 1A charger which can't charge my phone while navigating. Might buy another charger but first want to check if it isn't limited by the phone itself.

Polluxus said:
How to check amp output? I have a 1A charger which can't charge my phone while navigating. Might buy another charger but first want to check if it isn't limited by the phone itself.
Click to expand...
Click to collapse
When I did it, it was on a Touch HD. I ran a couple of different battery monitor programs to see what it was pulling in. I found that almost every car charger (about 8 or 9 ) I tried was only 0.5 amp...some claimed 1amp some claimed 2amp, most claimed 0.5.

[Q] 2000/2100mah USB Car Adaptors ok for G-Note?

Hi all,
Just a quick question, anyone currently using a 2000 / 2100 mah USB car adaptor with their G-Note?
I currently have a 1000 mah adaptor I believe and after a 2.5 / 3 hour journey, whilst charging, connected to the cars bluetooth and using Co-Pilot, I was down to about 20 / 30 % I think at the end of it.
Will the 2000 / 2100 mah USB car adaptors off ebay be ok to use with the G-Note and will it help keep the phone charged when using the phone as a SatNav?
See link to ebay item
Thanks in advance.

A DC power supply shouldn't be measured in mAh... Maybe they meant 2100 milliamperes? 2100 milliamps would be 2.1 amps which is the more amperage than my HP Touchpad charger (2 amps) which should be more than enough.
I don't know how much I would trust an ebay seller that can't even get the terms correctly, but if it's a 2.1 amp charger it should be fine.

Cool, thanks for the heads up PickleHead, I just thought that mAh was the rate of amp flow per hour and didn't realise it was specific for discharge rate of batteries. I'll have another look around.
Just had a look on the back of the USB mains plug for the Note and my Dell Streak and they both have OUTPUT @ 1.0A which is 1 amp right? But a 2.1 amp USB car adaptor should still be fine right? What about 3.1 or even 4.2 amp ones....or are they way too much for the Note?

I've also discovered today what a thirsty little beast the Note is while running satnav. I have a 1 amp car charger with the centre pins shorted together to force the phone to go into "AC Charging" mode, which it does perfectly well. However, over a 20 mile, 30 minute journey I was seeing the battery drop by about 1% per mile (every 90 seconds) whilst charging. That was with CoPilot Live Premium. On the way back I switched to Navfree, with pretty much the same result. I even have CoPilot set to dim the display in between turning announcements. On my old phone that make the difference between a solidly increasing charge and one that struggles to keep up. On the Note it was losing charge even with that feature enabled.
I'm going to need to be finding an alternate charger for the car, so recommendations would be welcome. I can't see a 2 Amp charger being a problem. The Note should take as much as it needs/wants, so long as the charger lets it have the juice it demands.
I would go for the official dock, except I'm told that it won't accommodate the Note whilst protected by a gel skin/case, so the official dock is a non starter for me.

Griffin PowerJolt car charger
tdodd said:
I've also discovered today what a thirsty little beast the Note is while running satnav. I have a 1 amp car charger with the centre pins shorted together to force the phone to go into "AC Charging" mode, which it does perfectly well. However, over a 20 mile, 30 minute journey I was seeing the battery drop by about 1% per mile (every 90 seconds) whilst charging. That was with CoPilot Live Premium. On the way back I switched to Navfree, with pretty much the same result. I even have CoPilot set to dim the display in between turning announcements. On my old phone that make the difference between a solidly increasing charge and one that struggles to keep up. On the Note it was losing charge even with that feature enabled.
I'm going to need to be finding an alternate charger for the car, so recommendations would be welcome. I can't see a 2 Amp charger being a problem. The Note should take as much as it needs/wants, so long as the charger lets it have the juice it demands.
I would go for the official dock, except I'm told that it won't accommodate the Note whilst protected by a gel skin/case, so the official dock is a non starter for me.
Click to expand...
Click to collapse
Griffin PowerJolt Micro for iPad.
Output: 5 volts DC at 2.1 amps
Output power: 10 watts
http://store.griffintechnology.com/ipad/original-ipad/powerjolt-micro-ipad

My Griffen Powerjolt charges the battery while Google navigation is running.
It's possible Google nav is less of a power drain than Navfree. I'll have to try it.
- Frank

I am using the original samsung galaxy tab charger which is rated at 2amps, it works fine with igo, but while using pandora, blurtooth a2dp and igo, the phone charges slowly...
Sent from my GT-N7000 using XDA App

I hav always used a 2A car adaptor as even the Nexus One was a thirst beast as it played the audio over bluetooth to the car dock that had its own speaker.
It works fine with Navigation/Navfree/Waze and the phone charges rather than discharges slowly with the lower power adaptors. The Official Samsung Car Dock comes with a power adaptor that is only rated at 1Amp.
The adaptor I use was intended for an iPad which needs at least 2A. Some adaptors have ratings that should be taken with a pinch of salt. If you can find one rated for an iPad (the type that plugs into the cigar socket and has a USB socket on it rather than an integral iPad connector) then you can't go wrong.
For those asking, I got my Samsung Car Dock from Handtec (in the UK) at: http://www.handtec.co.uk/product.php/5881/samsung-galaxy-note-official-vehicle-dock-kit-

I have the micro usb power cable from the original htc Nexus One car dock. I believe that this provides a 2 amp charging current, and my note charges, albeit slowly while using the phone as a sat nav with google maps

On a similar note about charging (which seems appropriate here), I have the original Galaxy Tab which doesn't allow charging over USB with the standard cable. However I bought an adapter which allows the Tab to charge from a USB port but you can't use it for data, I'm wondering if it's ok to use the same adapter with the Note so it charges quicker off a USB port?
Thanks for the link to the car dock, that looks pretty good
John

Battery does not charge when the phone is in use!

Hi guys
Im having a weird problem with the battery. It seems battery doesnt charge when im using the phone although it says and shows it charging! It just stays at the same battery percentage it doesnt charge or drain! When i turn off the screen it charges the battery just fine. I called o2 UK where i bought the phone, the rep said when i use the phone it consumes more power than it gets. Can this be true?! Do you think its just a software bug or defective hardware or defective battery?
Sent from my Galaxy Nexus

This is true if you're charging from the USB on your computer. USB ports only provide 500mA. The phone seems to use more than this if you are actively using it. I recommend using a wall plug that provides at last 1 Amp (1000ma) to effectively charge the phone.

How about car chargers? Same thing happens when its charging with the car charger..
Sent from my Galaxy Nexus

If I'm not mistaken, any car charger, whether it's rated at .5A, 1A, or 2.1A is only going to provide .5A to your phone using a typical USB cable. The USB cable that came with your phone has +/- lines for power as well as 2 data lines. If you pickup a "charging only USB cable" it has the data lines shorted so that only the power lines are functional. This type of cable would allow you to take advantage of the higher current 1A and 2.1A chargers - I think anyway. I'm still new to Nexus so I haven't confirmed that, but that's the way it worked on my old phone. I did read somewhere that even with a charging only cable someone wasn't able to pull 1A from their car charger so I don't know if that was a unique issue or if the Nexus doesn't behave the same way. My understanding is the amount of current pulled from the charger is dependent on the charger AND the phone. Using a special charging cable tricks the phone into thinking it's on A/C I guess.

Slow Charging

I am travelling at the moment overseas (for work). At home my 10.1 usually charges every night in a docking station. I bought a spare lead and my trusty multi pined (world Wide) USB charger that I use for my phone etc when I travel. When I plug the Pad into the charger it only charges at about 5% per hour so from dead flat it takes a whole day. At home its recharged in a few hours. What gives?? The charger is plenty big enough and doesn't even get warm. I tried a different charger (Not a Samsung Charger) and I get the same charge rate. Any body know if there is something special about the charger and if so how can I get around this problem in the short term.
Next time Ill just bring the Samsung charger

Darkfibre50 said:
I am travelling at the moment overseas (for work). At home my 10.1 usually charges every night in a docking station. I bought a spare lead and my trusty multi pined (world Wide) USB charger that I use for my phone etc when I travel. When I plug the Pad into the charger it only charges at about 5% per hour so from dead flat it takes a whole day. At home its recharged in a few hours. What gives?? The charger is plenty big enough and doesn't even get warm. I tried a different charger (Not a Samsung Charger) and I get the same charge rate. Any body know if there is something special about the charger and if so how can I get around this problem in the short term.
Next time Ill just bring the Samsung charger
Click to expand...
Click to collapse
You need a 2 amp charger. Most normal USB chargers are only 0.5 amps.

DanielNTX is right. Our toy has a 7000mAh Battery. The normal charger provides us with 2A per hour which - by using maths - makes the tab charge from 0-100 in about 3.5 hours (slightly more as you have to calculate efficiency loss and also the tab uses power during that time (Wifi, 3G, whatever's turned on)
Phone chargers usualy only deliver 500mA (or 0.5A) per hour, some more (The Blackberry charger provides 700mA for instance). Depending on how much Amp your phone charger provides, it can take longer, in the case of a 500mA charger it takes 4 times as long. (14 hours+).
It is really hard to find a good wallcharger that provides 2A that is not either flimsy as hell or pricy. HP had a firesale a few days ago where they sold their Touchpad charger (5.3V, 2A) for a cheap 5€ (including shipping) unfortunatelly my order got cancelled due to the high demand, but you should definatelly search for a charger with a higher amperage.

Yes yoar are correct the Charger I am using although physically large is only one amp.
Looks like I am in the market for a 2 amp charger

When you are charging, is there a red cross through the battery symbol in the bottom right of the screen?
If so, then the problem is that your charger does not signal to the tab that it is a charger and so the tab will only trickle charge (as it would from a regular USB port).
The solution is:
a) to buy a tab compatible charger which sends this signal
b) buy an adapter to send the signal, search for somethig like "Samsung Galaxy Tab P1000 New PC Charging Power USB Cable Adaptor" on eBay
c) if you have electronics skills make up a little circuit to fool the tab. It involves soldering a couple of surface mount resistors between the +5, D+, D- & 0v. Several pages around on it. Here's one I found in a hurry, sorry, can't post links yet... h t t p : / / forums.webosnation.com/hp-touchpad-accessories/314741-how-get-full-power-charge-mobile-battery-car-hp-touchpad.html

I can't find my original wallcharger anymore
I use the original usb-cable and the charge unit from my SIII but it's slow as hell. And when the tab is on most of the time there is a red cross on the battery. It's very sucky

Just go find any old wallcharger that provides 2 Amps then. I bought a second original charger off of amazon for "just" 15€. It's not the cheapest I could find, but easily the one I trust most not to burst up in flames
I would recommend staying away from cheap, flimsy adapters.
http://www.amazon.de/Samsung-ETA-P10E-Reiseladegerät-inkl-USB-Kabel/dp/B0044EAVB6/ref=pd_cp_ce_1
EDIT: I suspect the SIII charger does not output 2A, really. Such a poweradapter is very uncommon for phones (I have not seen one with such an amperage yet) and only common for "high power devices".
EDIT2: If it is this one you have (http://www.amazon.de/Samsung-ETA0U8...D2LC/ref=sr_1_4?ie=UTF8&qid=1345112597&sr=8-4), then yes, this does not provide enough power for the Galaxy Tab. This has an output of only 1A.
EDIT3: For you, my belgian friend: http://www.amazon.fr/Samsung-ETA-P1...AVB6/ref=sr_1_2?ie=UTF8&qid=1345112860&sr=8-2
a bit more expensive than in germany, but you have free shipping to belgium

Buying a 2A charger won't do because the tab is limiting the current it draws from the charger unless it detects the original charger. This is to comply with the USB standard maximum current of 0.5A. If the tab drew more current from a standard charger, chances are good that the charger either shuts off due to overload or simply goes defect.
To use a 2A standard charger using the full current, you need to buy/build an adaptor cable to fool the tab into thinking it's hooked up to the original charger.
Regards
Achim

I use the original charger and I get the red cross. Damn Samsung QC...

Darkfibre50 said:
I am travelling at the moment overseas (for work). At home my 10.1 usually charges every night in a docking station. I bought a spare lead and my trusty multi pined (world Wide) USB charger that I use for my phone etc when I travel. When I plug the Pad into the charger it only charges at about 5% per hour so from dead flat it takes a whole day. At home its recharged in a few hours. What gives?? The charger is plenty big enough and doesn't even get warm. I tried a different charger (Not a Samsung Charger) and I get the same charge rate. Any body know if there is something special about the charger and if so how can I get around this problem in the short term.
Next time Ill just bring the Samsung charger
Click to expand...
Click to collapse
Completely turn off the tablets. Im pretty sure it'll work
Sent from my GT-P7500 using xda premium

slow charging WITH samsung charger?
I've been using the samsung wall charger from the box with my galaxy tab 10.1 and a few days ago it started to only trickle charge when plugged in with it. It charges like 3-5% per hour, and says its "discharging" in the battery menu while its plugged in. Thing is, the charger I have is frayed a bit at the male-to-tab (not male-to-block) side of the cord. Could this be causing my problem? I don't want to buy another charger for no reason, but I also don't want to send in my tab for weeks on end to find out it was the charger...any advice?

Solar charger for Samsung Galaxy Note-II

I'm looking for portable (camping/hiking type) solar charger for Samsung Note 2 (T-Mobile version). Just bought GOAL ZERO Nomad 7+ Guide-I/O Plus (which is AA/AAA battery bank. When I plugged in my Note into the solar panel instead of charging it was draining battery, so after 2 hour I wen from 35% down to 19%. I did testing on the battery bank (from USB to micro-USB on the phone and it works fine). So my question is:
1) is it possible that the panel is defective or Note2 is simply so incompatybile with the whole world ?
2) is there any other nice solar kit that would work and at the same time is small and light enough.
This is also possible because Note-2 (as well as Galaxy-3) uses 11 pin instead 5-pin USB pinout...
Eventually I would like to charge also my Samsung SLATE-7. I plugged it to the panel through the lighter outlet (as I have an extra charger that takes the power from the lighter then converts it to the higher voltage/amps - I believe is is around 19-20V). The only problem is that (as I herd) charging this way would be pretty slow. I have spent several hours last two days trying to find something that would work but after my several bad experiences with Samsung I have to be 100% sure when I order something on line. In this case I was lucky as I bought Nomad-7 at REI store so I can easily return it. I've seen several nice chargers on line today but at this moment I cannot be sure that anyone of them would work.
Any advice appreciated.

The note 2 requires at least a 1 amp output JUST to run while you're using the device (ie screen on)... It will charge slowly at 1 amp with the screen off and the phone not in use.
1.5 amps is recommended minimum to charge while you're actually using the device...
2 amps is the stock wall charger...
USB 2.0 output is only 500mA... Which is enough to trickle charge the note 2 while not in use.
So basically... look for a Solar charger that has at least 5v 1amp (if not 2amps) USB output. That should charge it. Or it my opinion? Invest in a 11,000mah + External usb battery and separate Solar panel kit. Most solar kits come with dinky 4000mah or less battery packs which is barely enough to charge your phone once. (if that)