Has anyone used a hand-cranked charger? I have a Brookstone hand-cranked flashlight/radio that can charge phones. I'm considering getting an adapter to charge my Tilt but I don't know if it can handle it. It says it can output up to 600mA. I've heard bad reports of other chargers with dumb phones but nothing of this one. It seems unlikely this can keep a power-hungry Kaiser charged. It also outputs 6 volts. I hope this doesn't fry the phone.
Edit: I meant 600mA
Any estimates on how long it would take to reach full battery charge?
A couple of hours?
Excellent for weight loss, especially if you use 3G...
The standard Kaiser or Hermes wall charger is rated at 1A (1000mA), and a powered USB port outputs 500mA. As some people have problems charging from USB - particularly after completely discharging their batteries, then I'd think that 500mA is the minimum power required to charge.
If you install one of those programs which displays battery power you'll probably find that the power draw is much higher than 6mA (even in standby) so all you'll do with the hand cranked charger is slightly reduce the rate at which the battery is discharging.
Looking at a 1350mAh battery, this would take a minimum of 9 days and 8 hours to charge the battery from flat if it isn't being used - great workout but hardly worth it
I got a cheapo one from some gareg... AA branded thing for a fiver, flash light thingy to... five mins of winding gave a one percent increase in battery, but then if your really stuck it could be a good thing... only cost a fiver too!
Just got a griffin powerjolt micro, comes with an ipod cable so you'll have to use your own, but it charges the streak up a treat
Think it was 12 pounds from amazon.
It's designed for iPads, which need 2 amps, it's rated for 2.1 amps. Charged from 30 to 60% in 20 mins while using gps.
Hope that's useful .
Sent from my Dell Streak using XDA App
For battery life is better to charge with low amps and for a long time. I would prefer ,not to use a charger with more than 1A
i got myself te belkin 1A charger. Should work good I guess.
As mentioned in the other thread, both these two work just fine :
https://www.dealextreme.com/p/car-p...cable-charger-set-for-apple-ipad-12-24v-45227
https://www.dealextreme.com/p/car-cigarette-powered-1000ma-usb-adapter-charger-black-dc-12v-40470
$6 or $2 including free shipping worldwide. You'll need the Streak's USB cable to connect it.
Anbuch said:
For battery life is better to charge with low amps and for a long time. I would prefer ,not to use a charger with more than 1A
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The car charger does not force power into the phone, the phone draws what it needs. Using a power supply with a higher Amp rating means less strain on the charger not more power than is needed going into the phone.
Sorry for my bad English, I guess you do not understand what I mean.
You're right that the car charger with more amps does not force more power into the phone (I do not say that),but if you use a charger with more amps , charging time is less. The battery prefers long time charging with less charging amps. In fact using less charging amps ,the battery allowed to load more power (a little bit ). You can try it by using a USB port of yours computer to charge the battery.
Anbuch said:
Sorry for my bad English, I guess you do not understand what I mean.
You're right that the car charger with more amps does not force more power into the phone (I do not say that),but if you use a charger with more amps , charging time is less. The battery prefers long time charging with less charging amps. In fact using less charging amps ,the battery allowed to load more power (a little bit ). You can try it by using a USB port of yours computer to charge the battery.
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Maybe it's just me, but what you are saying is exactly the same thing.
If the charger isn't forcing more power into the phone, then the charging time will not change. If the battery is receiving less current then what it was designed, such as a low powered USB port, then it would take longer then normal to fully charge. But once the charger puts out the amount of current that the battery will normally draw, the battery will only charge at that rate. Increasing the current beyond that amount will not speed up the charging time or push more current to the battery.
brianlp said:
If the battery is receiving less current then what it was designed, such as a low powered USB port, then it would take longer then normal to fully charge. But once the charger puts out the amount of current that the battery will normally draw, the battery will only charge at that rate. Increasing the current beyond that amount will not speed up the charging time or push more current to the battery.
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Anbuch is trying to say that the battery will last longer in the first scenario - the longer, slower charge from the low powered USB port.
Quicker battery charging does degrade the cells in less time - if you were to always use a 500mA charger, you would get more life from the battery than if you were to always use the stock 1000mA charger.
You can pick up a replacement battery from eBay for $10, so none of this really matters - when your battery wears out in 18 months, just buy a new one.
Nomgle ,thanks, this is exactly what I wanted to say!
I just gave an example with a USB port. In fact a USB port and a stock 1000mA charger are save enough for the battery of a Streak (1530mA). I just wanted to say : Do not use 2100 mA charger
Flinx78 said:
.... it's rated for 2.1 amps. Charged from 30 to 60% in 20 mins while using gps....
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This will "kill" the battery very soon
Some battery reading:
Understanding lithium-ion
Charging lithium-ion batteries
How to prolong lithium-based batteries
From the last page linked:
[FONT=Arial, Helvetica, sans-serif]Generally speaking, batteries live longer if treated in a gentle manner. High charge voltages, excessive charge rate and extreme load conditions will have a negative effect and shorten the battery life. This also applies to high current rate lithium-ion batteries.
Not only is it better to charge lithium-ion battery at a slower charge rate, high discharge rates also contribute the extra wear and tear.[/FONT]
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.
I use a black&decker converter and it has a usb port already built into it and that works pretty good for me.
Sent from the phone killer of ALL phone's, Dell Streak!
i am using an app called battery monitor widge from the play store t and have logs for the past day .
its showing different values when charging with the stock HTC charger.
Not sure if the phone or battery circuit does this , it seems the charging on the htc charger is on/off... like charging in pulses
sometimes +600 mah, stops , sometimes _ +300 mah stops , sometimes - xxx mah ...
i think its trickle charging they say the phone trickle charges after 80%. but the prob here is on the HTC charger the charge is fluctuating even below 80%
i tried a note 1 charger which has the same rating as the HTC charger. same behaviour
so it tells me the battery does not like 1A
then i switched to a 700 ma samsung charger . so far it shows a constant current of 800 mah...there is no on/off behaviour
and there is a constant charging current applied except that around 90% onwards the charge tapers off
I seem to recall reading something on the web a long time ago that said that charging at less than 1C could actually result in a faster charge to 80-90% charge.
The rationale being that if you charge at a higher rate, it forces the voltage up to the maximum faster and then the charger has to ramp down the current faster.
If you charge at say 0.7C then it takes longer for the voltage to hit the maximum and then, counterintuitively, the average current for the duration of the charge is actually higher.
I am tested this theory now... but it seems like it could be true.
using samsung charger rated @ 7C and using the battery monitor app, the samsung charger is keeping the phone charged at a constant 700 mah but the HTC charger is fluctuating from 500+ mah to 600 mah ten sometimes to 900 mah
not sure why the samsung charger seems to charge the HTC one faster than the HTC charger..
cant explain why though
They say there are different chargers behave differently with different batteries.
can someone care to share some light here?
is the HTC charger defective?
Magpir said:
i am using an app called battery monitor widge from the play store t and have logs for the past day .
its showing different values when charging with the stock HTC charger.
Not sure if the phone or battery circuit does this , it seems the charging on the htc charger is on/off... like charging in pulses
sometimes +600 mah, stops , sometimes _ +300 mah stops , sometimes - xxx mah ...
i think its trickle charging they say the phone trickle charges after 80%. but the prob here is on the HTC charger the charge is fluctuating even below 80%
i tried a note 1 charger which has the same rating as the HTC charger. same behaviour
so it tells me the battery does not like 1A
then i switched to a 700 ma samsung charger . so far it shows a constant current of 800 mah...there is no on/off behaviour
and there is a constant charging current applied except that around 90% onwards the charge tapers off
I seem to recall reading something on the web a long time ago that said that charging at less than 1C could actually result in a faster charge to 80-90% charge.
The rationale being that if you charge at a higher rate, it forces the voltage up to the maximum faster and then the charger has to ramp down the current faster.
If you charge at say 0.7C then it takes longer for the voltage to hit the maximum and then, counterintuitively, the average current for the duration of the charge is actually higher.
I am tested this theory now... but it seems like it could be true.
using samsung charger rated @ 7C and using the battery monitor app, the samsung charger is keeping the phone charged at a constant 700 mah but the HTC charger is fluctuating from 500+ mah to 600 mah ten sometimes to 900 mah
not sure why the samsung charger seems to charge the HTC one faster than the HTC charger..
cant explain why though
They say there are different chargers behave differently with different batteries.
can someone care to share some light here?
is the HTC charger defective?
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Click to collapse
Even I will like to know. I have been using the blackberry charger for charging my HTC one. The charger is rated 5V, 700 mA. Is it safe to use it permanently with HTC One.
So few days ago got the phone , but always charged it through USB port. Now finally tried turbo charger and it definitely isn't "turbo". I know most of those Turbo claims what I saw were just selling strategy , but I'm pretty sure I'm not even getting 1% - 1 minute. Latest Marshmallow OTA.
So , on a relatively new battery , how fast does your phones charge ? You can write with phone turned off and on..
Also looking at the charger it says for output :
Standard output :5V =1.6A
Turbo output :9v=1.6A
Turbo2 output :12v = 1.2A
This deosn't make any sense to me, while raising volts may solve some power losses through cable , amps are what charges your phone faster or slower , and 1.6A , isn't really a big deal not to mention 1.2A. Reading somewhere that quick charge 2,0 supports up to 3amps draw..
I have One Plus one and it's original charger is 2.1A (quick charge 1.0 ) , with custom kernel bumped charging rate all the way up and good cable I'm seeing about 2Amps of charging in real life , or little more than 1% per minute . I was expecting motorola to charge faster or at least even , even though they are 3100 vs 3900mAh batteries.. Not to mention I can easily mod OnePlus One and get same SOT and battery overall as motorola's, while on motorola I'm stuck with stupid locked bootloader . Original idea was to sell OnePlus One because of Motorola, but I don't know now anymore..
The volts and amps listed on an electrical device are typically its max or rated output, NOT what it "always" delivers. That being said, most power supplies will deliver their rated voltage most of the time, but the current is determined by the charged device (through it's effective resistance)... so as long as you run below the rated current, you'd be fine.
Secondly, from what I'm reading, the OPO doesn't have quick-charge technology (ref: https://www.reddit.com/r/oneplus/co...lcomm_quickcharge_20/?st=ix64k1gy&sh=6d7492c9 ) so I'm not sure what you're talking about there. Again, the charger may say 2.1A, but that doesn't mean it's actually delivering that much all the time. I have a relatively old Kindle Fire with a 2.1A charger, but I know it doesn't charge very fast even with that device.
If you want to talk about Volts and Amps, you need to use actual volt/amp meters to see what you're getting.. Note, there is an app for Android (called Ampere) that claims to report amp-rates, but it also has a caveat saying that the current should not be taken as completely accurate, for various reasons.
Lastly, note that QC doesn't actually run when you are at higher charge levels... I think it's above 80% or something? After that level, it returns to "standard charging" mode for this "top-off" phase of the battery charge cycle. So, if you're seeing slow charge rates there, it's to be expected.
The Turbo has a relatively massive battery. Mine takes...somewhere upwards of 3ish hours on turbo charging to replenish.
1 hour 15 minutes
that's what it takes to go from 0 to 100% using Turbo Charger 2.0
Thank you all for answering, this is exactly why I started this thread. Already see here some interesting results!
schwinn8 said:
The volts and amps listed on an electrical device are typically its max or rated output, NOT what it "always" delivers. That being said, most power supplies will deliver their rated voltage most of the time, but the current is determined by the charged device (through it's effective resistance)... so as long as you run below the rated current, you'd be fine.
Secondly, from what I'm reading, the OPO doesn't have quick-charge technology (ref: https://www.reddit.com/r/oneplus/co...lcomm_quickcharge_20/?st=ix64k1gy&sh=6d7492c9 ) so I'm not sure what you're talking about there. Again, the charger may say 2.1A, but that doesn't mean it's actually delivering that much all the time. I have a relatively old Kindle Fire with a 2.1A charger, but I know it doesn't charge very fast even with that device.
If you want to talk about Volts and Amps, you need to use actual volt/amp meters to see what you're getting.. Note, there is an app for Android (called Ampere) that claims to report amp-rates, but it also has a caveat saying that the current should not be taken as completely accurate, for various reasons.
Lastly, note that QC doesn't actually run when you are at higher charge levels... I think it's above 80% or something? After that level, it returns to "standard charging" mode for this "top-off" phase of the battery charge cycle. So, if you're seeing slow charge rates there, it's to be expected.
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Thanks! Actually, OnePlus ONE DOES have quick charge 1.0 which is 5v up to 2.1A. Snapdragon 801 supports quick charge 2.0 but OPO didn't implement it with phone. There are billions of topic on this at OPO forum and a lot of people done tests including myself. The problem with OPO is it's very sensitive on cable so it works best with OEM cable and it somehow recognizes it. There is app called OPO charging current so I monitored with it and synapse . Kernel setup hardware to be able to recive very max 2100mA no mather which cable. Stock ONEplus charger. Some cheap cables gave me from 300 - 600 mA max with screen on . I found at home some cable that looked cheap but said charge only, tried and it charged around 1600mA with screen on and around 1800 screen off. Later got Anker 21 AWG and results were even better , aroun 1800-1900mA screen on and close to maximum 2000mA screen off. Phone was charging 1% in less than a minute. Thought turbo can charge at same rate. After all , it's "boosted" lol.
I know it doesn't do quick charge after around 75% , I tried at 30%. Given all that , 1600mA which is maximum I see on the Motorola's charger is not something special if we disregard Voltage..
Einsteindks said:
The Turbo has a relatively massive battery. Mine takes...somewhere upwards of 3ish hours on turbo charging to replenish.
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Sparksys said:
1 hour 15 minutes
that's what it takes to go from 0 to 100% using Turbo Charger 2.0
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Again this is very interesting. Already here we see 2 totally different results with one being almost as double fast.. Sparksys , you are on stock charger and stock cable?
Because if you charge from 0-100 in 1h 15min, thats around 3.2Amps charging current , while our buddy Einsteindks here gets around 1.3Amps and max amp I see on "rola's charger is 1.6Amps. I'm confused now.
Also can somebody post picof stock droid turbo USB cable shipped in bundle? I think I don't have stock cable, it says right at the plug phone side "be hello". No other labels or anything..
EjđiSixo said:
Thank you all for answering, this is exactly why I started this thread. Already see here some interesting results!
Thanks! Actually, OnePlus ONE DOES have quick charge 1.0 which is 5v up to 2.1A. Snapdragon 801 supports quick charge 2.0 but OPO didn't implement it with phone. There are billions of topic on this at OPO forum and a lot of people done tests including myself. The problem with OPO is it's very sensitive on cable so it works best with OEM cable and it somehow recognizes it. There is app called OPO charging current so I monitored with it and synapse . Kernel setup hardware to be able to recive very max 2100mA no mather which cable. Stock ONEplus charger. Some cheap cables gave me from 300 - 600 mA max with screen on . I found at home some cable that looked cheap but said charge only, tried and it charged around 1600mA with screen on and around 1800 screen off. Later got Anker 21 AWG and results were even better , aroun 1800-1900mA screen on and close to maximum 2000mA screen off. Phone was charging 1% in less than a minute. Thought turbo can charge at same rate. After all , it's "boosted" lol.
I know it doesn't do quick charge after around 75% , I tried at 30%. Given all that , 1600mA which is maximum I see on the Motorola's charger is not something special if we disregard Voltage..
Again this is very interesting. Already here we see 2 totally different results with one being almost as double fast.. Sparksys , you are on stock charger and stock cable?
Because if you charge from 0-100 in 1h 15min, thats around 3.2Amps charging current , while our buddy Einsteindks here gets around 1.3Amps and max amp I see on "rola's charger is 1.6Amps. I'm confused now.
Also can somebody post picof stock droid turbo USB cable shipped in bundle? I think I don't have stock cable, it says right at the plug phone side "be hello". No other labels or anything..
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I was guess-timating. Been a while since I've done the full recharge.
Einsteindks said:
I was guess-timating. Been a while since I've done the full recharge.
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According to your guess-timate and max rated power I see on the charger, that seems about right and realistic guess BUT there also isn't anything TURBO about it. I'ts the average charging speed of every device today (1.5A) which doesn't have any kind of quick charge option. Even quick charge 1.0 is faster with 2.1A at 5v . Thats why I opened this topic, I'm confused.
Only voltage is higher on turbo charger than let's say my OPO charger but amps are lower and voltage doesn't have that much of an impact on charging speed, amps do!
When I have my Turbo in my truck at night, and running about a dozen things at once, in addition to all the background stuff, NO 'regular' charger can keep up with the power demand, and the battery undergoes a insanely slow discharge. By itself, the battery lasts 3 or 4 hours, tops. With the turbocharger, the battery charges at a modest rate, maybe 10% per 30 minutes...while under high demand.
Einsteindks said:
When I have my Turbo in my truck at night, and running about a dozen things at once, in addition to all the background stuff, NO 'regular' charger can keep up with the power demand, and the battery undergoes a insanely slow discharge. By itself, the battery lasts 3 or 4 hours, tops. With the turbocharger, the battery charges at a modest rate, maybe 10% per 30 minutes...while under high demand.
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That seems ok.
I encourage others to post their charging times so we can compare!
Thanks
Since no other turbo users jumped in...
At the time of starting the topic I have disabled some Verizon's bloatware (completely stock, locked turbo). After reflashing completely stock FW , and with untouched software, droid really did charged turbo fast. More than 1% per minute and around 0-60% for 30min just as advertised for quick charge 2.0 . So if anyone was wondering, that should be benchmark.
On the other hand, phone is almost impossible to charge with any other type of "normal" charger..
My Turbo, running stock MM/root/Xposed with a large load of apps, will charge 20-30% per hour on a normal 1A charger, while lying on the desk with the screen off. It charges at a similar rate via Qi wireless charging. This is plenty for daily overnight charging. My usage habits are such that I usually have 20-40% battery left when I get home from work in the evening.
In a different usage case, when I play Ingress (a real battery eater, screen on + 3D animated graphics + GPS + data) the Qi charger in my car holds discharge to about 5-10% per hour.
I've never had a turbo charger to compare, but I've never found the normal charger or Qi charger to be significantly lacking.
Spott07 said:
My Turbo, running stock MM/root/Xposed with a large load of apps, will charge 20-30% per hour on a normal 1A charger, while lying on the desk with the screen off. It charges at a similar rate via Qi wireless charging. This is plenty for daily overnight charging. My usage habits are such that I usually have 20-40% battery left when I get home from work in the evening.
In a different usage case, when I play Ingress (a real battery eater, screen on + 3D animated graphics + GPS + data) the Qi charger in my car holds discharge to about 5-10% per hour.
I've never had a turbo charger to compare, but I've never found the normal charger or Qi charger to be significantly lacking.
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Right, I've also used "normal" charger before. Now, I have all QuickCharge plug chargers -- but I still use Qi wireless charging every day, as does my wife.
I also plug in via USB port on my computer and it charges fine.
okay the way the turbo charging works is that it's like a tier system at very very low charge percentages it works the fastest and slows off after about 60 or 70 percent it just charges like a regular charger all the magic happens at the lower charges. another thing is that unless the cable you are using is total garbage it won't matter at all. it is all the phone and the ac adapter that do the work any variations in the cable will be negligible. I am monitoring my battery through the custom kernel (bhb27 and its app) and it says right now at 81% charge on a turbo charging that I am getting +1172.x mA if my battery was lower this value would be much much higher
lastly I recommend only using the turbo charger when you really need power quickly. if you are just plugging in your phone for the night it makes no sense and will actually be bad for your battery health. the faster it charges the more it heats up and heat is not good for the battery health when I plug my phone in at night I use a .5 amp charger and my phone says that it will need like 8 or 9 hours to charge (this may be exsessive but the quick chargers heat up my phone a lot I also use a 1 and 2 amp charger nearby
Hi,
I have a funny setup: solar charger/table decoration connected to a wireless charger (stuff from ebay with Samsung logo).
So I assume it will charge so slow if any at all. But still.. at least won't discharge during office hours.
Would this hurt battery in any way?
Well it should not hurt it. If most, like all wireless chargers they are actually good for your battery health. Wireless charging charges slow but does not strain the battery as much. If you fast charge your phone it does worse to the battery long term
However if you post the model of your charger we can look it up and be sure
will slow wireless charging hurt my batter if I'm using a Samsung wireless charger?
model: EP-PG950 - 2018 model that i received with my note 8
Same Question
I had the same questions. I also see there is an option for fast wireless charging in settings. If slow charging is better for battery health and you mostly leave your phone charging over night, would it be best to leave fast charging off so it takes most of the time you are sleeping to charge slowly until full?
At the moment I leave my phone at low charge while I sleep and wake up 2 or 3 hours earlier to plug it in so that I don't over charge the battery.
Wireless charging creates more heat so this question is hard to answer as I have not seen any good breakdowns of qi vs fast. I have been wirelessly charging from older chargers like the wireless charger that came out for note 4 and some 3 coil charger from Nokia that was on clearance for $15. They're not fast wireless charging and phone does get warm. I also charge off of 500ma and 1A chargers usually and only use the adaptive fast charging (QC2.0) when I need a quick top up. Heat doesn't help your battery.
Perhaps somebody can do a comparison with regular qi, fast qi, 1A or less charger and the adaptive fast charger and see what the min and Max of battery temp is through out charging cycle. I'm guessing 1A charger is the best and regular qi is ok. Fast wireless and Fast charging get your battery temp higher.