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I was wondering if standalone desktop battery charger for Universal good in recharging batteries or if they shorten the battery life. Thanks!
As long as the minimum specs for the universal are met by your charger it should not shorten your battery's life in any way.
Me and other people across the forum have used a moto razr charger to charge our universals, good results have been achieved, i have a charging/sync craddle bough out in ebay for few euros, it's branded "just mobile", it has its own battery charger (rated at 5V, 1A) and it works fine, although many people have had problems just with this charger.
One last thing, the real battery charger circuit is inside the pda, so provided that the battery charger is normal to good quality (5V +/- 10%, 500mA to 1A), you should not have any problems.
Bear in mind however that the battery can 'sk' for up to 1A if its almost flat. This means that your charger should be able to deliver it if you want to charge your battery
I've been looking into an external battery pack for my phone as a backup, partly because the phones I am considering buying in the very near future don't have replaceable batteries, and partly because a replaceable or even extended battery doesn't really guarantee I can get through a day.
My biggest fear and reason for wanting this battery is if I have little to no charge in the evening/night and can't manage to get a decent amount charged. Having a battery backup would make me feel more secure knowing I have something to keep my phone going even if I somehow end up away from a charger for an extended period of time, however irrational such a situation may be.
As such, I have been looking and found there are 3 different types of battery packs.
1) Built in Lithium ion (most common)
2) Replaceable lithium ion (ibattz mojo is the only example I can find)
3) AA based charger.
Now charger type 1 seems to be common, but overall the battery will lose charging capacity over time, not be replaceable, and will need to be tossed.
Type 2 and 3, the battery can be easily replaced, especially on the cheap. However type 2 can be smaller and slimmer, while type 3 has the benefit of using LSD NiMH batteries. For those who don't know. LSD is Low Self-Discharge in this case. A lithium ion battery dies every week or two just sitting there, LSD NiMH batteries can hold up to 75 or 85% of their charge even after a year of just sitting there.
Overall type 3 seems the most ideal. However there is another element. Some chargers have cables built in, while others have just a standard usb plug. At first I thought the USB plug was annoying and a built in cable made more sense. However after some thought, I realized the built in cables added too much bulk, and I found keychain cables, which make more sense. My favorite example of this, is the mojo treble keychain, which seems to do everything and then some.
So basically now I am looking for the best AA based charger that doesn't have any usb cable built in, just a simple full usb plug. The closest I can find is by energizer, but it has the plug built in on a super short cable that looks as if it would put undue stress on my phone if I used it.
However if anyone has any other suggestions, or reasons to recommend something else, I'd greatly appreciate any input. At this time I just want to find the most versatile option. I would also love to hear other reasons for why people went with options other than AA rechargeables for their battery packs.
dkkeo said:
Extend battery:
(1) first of all to see the instruction for use,
(2) choosing a charging performance good charger. Charging time, keep the battery clean, dry. Helpful hints: use a mobile phone to send a text message, playing games is the power consumption
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Click to collapse
Any reccommended battery pack for LG nitro???
I use Belkin External Battery pack, reliable,
my other mates bought cheaper made in china battery pack but after a month or so, they are already in the bin, the battery is damaged.
Charger considerations
Hi,
I need advise for the following:
Charger A (Li-polymer battery) output : 5V, 1A
Charger B (Li-polymer battery) output : 5V, 500mA
Device input: 5V, 750mAH (Li-ion / Li-polymer)
When using Charger A, some people comment that it will limit the current of 750mAH for the device and the device's battery should be fine since both the charger and device are at 5V. However, some people comment that this will shorten the battery life of the device since it will perform a 'quick charge' using 1A.
When using Charger B, some people comment that the device will draw more current than it can deliver and causes it to heat up and reduces the charger's life. However, some people comment that Charger B will extend the battery life of the device since it performs a 'slow charge'.
I also read that USB pins on the charger denotes if the charger is a PC or a dedicated charger. If it is a PC, the device will limit the drawing current. If it is a dedicated charger, the device will draw more current to charge itself.
I am confused as to who is right and which charger should i be using.
Can someone enlighten me ?
Thank you very much.
JefferyTeo said:
I use Belkin External Battery pack, reliable,
my other mates bought cheaper made in china battery pack but after a month or so, they are already in the bin, the battery is damaged.
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80%-90% external battery packs are made in China at present. Some of the brands make good batteries as well.
tsgan272 said:
80%-90% external battery packs are made in China at present. Some of the brands make good batteries as well.
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Click to collapse
yes most external battery packs are made in china ,so i prefer to buy them from china supplier online ,
with better price and more convenient .belowed is the websites i often bought from ,which is better .
http://www.kingsbuying.com/consumer-electronics/power-banks.html
http://www.dx.com/s/power+bank
http://www.banggood.com/buy/Power-bank.html
So, I have powerbank and I have 2 ways of charging: 1A and 2.1A. which one to use when charging my note 2?
Handwritten from my Note 2
Depends on the cable you'd use. Samsung cable will go near 2amp, generic ones do about 1 amp
kebabs said:
Depends on the cable you'd use. Samsung cable will go near 2amp, generic ones do about 1 amp
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I have samsung cable.. So is it smart to charge via 2.1 A ? Can it do some damage on the phone ?
I have a Momax external battery and have charged the phone with the 2.1A port. It didn't heat up, it didn't have any problems. I was planning on measuring the exact amperage that comes out of the samsung charger and the momax battery (iPower Pro), but I didn't get around to it, because I suspect the difference is actually smaller. There are many people who used more powerful chargers to charge their phones faster, and the only thing that degraded was the battery lifespan, but the difference in those cases was upwards of 0.5A between the original and the new charger. I find the 0.1A to be a small difference and I have no problem using the 2.1A port on the iPower.
So to answer your question, no, it won't damage your phone. Theoretically it damages your phone's battery, but it degrades anyway due to charging cycles, so you won't notice any damage caused by the extra 0.1A unless you plan on still using the note 2 10 years from now.
sandulea said:
I have a Momax external battery and have charged the phone with the 2.1A port. It didn't heat up, it didn't have any problems. I was planning on measuring the exact amperage that comes out of the samsung charger and the momax battery (iPower Pro), but I didn't get around to it, because I suspect the difference is actually smaller. There are many people who used more powerful chargers to charge their phones faster, and the only thing that degraded was the battery lifespan, but the difference in those cases was upwards of 0.5A between the original and the new charger. I find the 0.1A to be a small difference and I have no problem using the 2.1A port on the iPower.
So to answer your question, no, it won't damage your phone. Theoretically it damages your phone's battery, but it degrades anyway due to charging cycles, so you won't notice any damage caused by the extra 0.1A unless you plan on still using the note 2 10 years from now.
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Thanks for reply mate ! I was thinking the same, but i needed some sort of confirmation tho
Use the 2.1A one.
The phone should only draw 2A from it anyway, that just means the port is capable of supplying 2.1A.
Using the 1A port will just charge your phone slowly, the 2.1A port should charge it as quick as the official charger, depending on which cable you use.
It is a matter of supply and demand. All USB devices can safely be plugged into any USB charger. Given an unlimited amount of current available from the charger, each device will still only draw only as much current as it is designed to draw. If the charger is rated 2.1 Amps or 5 Amps or 10 Amps, a 1.5 Amp device will still only draw 1.5 Amps. The charge rate will be at maximum Think of it like your house wiring. The circuit may have a 20 Amp circuit breaker in the basement but we plug in 40 Watt bulbs and 100 Watt bulbs and TVs and electric shavers that all draw different amounts of current. The 100 Watt bulb uses less than an amp but is unharmed being plugged into a 20 Amp receptacle (charger). Now we come to the flip side. If the charger Is rated lower than the device it just charges slower than it would if the charger could supply at least as much as the device uses. To go back to our example, the 1.5 Amp device plugged into a 1 Amp charger will take longer to charge that it would with a charger rated 1.5 Amps or higher. My analogy has one hole. If the stuff plugged into the house receptacles exceeds 20 Amps the circuit breaker pops. This will not happen with USB chargers as they limit the current and will not try to supply more than they are rated for. Stick to chargers rated as high as the one that came with your device or higher and you will be fine
I am planning to buy a new charger for my Moto G as well as Nokia Lumia 520.
I would be using the same charger to charge both phones.
Please help in selecting a correct charger; a 1500 mA charger or 750 mA charger.
Lumia 520 battery is a BL-5j 1430 mAh battery
Moto G battery is a 2070 mAh battery
I dont want to harm any of my phone.
Also is somebody could explain in brief about mAh and charger relting to battery mAh ans all, will be very helpful.
There are plenty of guides about which chargers to use with which devices. In fact there was an xda article about it within the past few months, you can do a search for it in Google.
Sent from my Nexus 5 using Tapatalk
buy a lithium polymer battery
Monsieur_Bond said:
I am planning to buy a new charger for my Moto G as well as Nokia Lumia 520.
I would be using the same charger to charge both phones.
Please help in selecting a correct charger; a 1500 mA charger or 750 mA charger.
Lumia 520 battery is a BL-5j 1430 mAh battery
Moto G battery is a 2070 mAh battery
I dont want to harm any of my phone.
Also is somebody could explain in brief about mAh and charger relting to battery mAh ans all, will be very helpful.
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Click to collapse
you'd better buy a lithium polymer battery instead of a Li-ion one, for which will do harm to your phone.
If you buy a higher mA charger than you can charge your phones faster. So I suggest you should go with the 1500mA one.
Chargers can supply any current (mA) up to their max. rating, the voltage is stabilized to 5V for USB. It depends on the device that contains the charge controller/regulator how fast it's charging the battery. So you can't get a charger that provides too much mA for any smartphone as long as the voltage is not above 5.2V.
More mA=faster charging
Some devices require more mA to even charge. But if they get more it's OK.
Ohm's law is still valid - even for modern electronic devices like smartphones.
http://en.wikipedia.org/wiki/Ohm's_law
Levivig said:
More mA=faster charging
Some devices require more mA to even charge. But if they get more it's OK.
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I'm building a Lipo battery charger out of an old PC power supply and throwing a USB port on it to use the 5v line. It supplies something around 22A on the 5v line haha. I'm only using 18 gauge wire and the charging cable has like 20 or 22 gauge wire so realistically, I can only charge it at 3 amps before the voltage drops too much.
Don't go too cheap on the charger, some no-name cheapo could actually harm your phone.
So I'm in my junior year of electrical engineering and seeing the incredible things done with smartphones is something I really would like to be a part of one day. I wanted to discuss, considering the limits of current technology, if it would be possible to create a safe Dash Charging power bank for this device? For those who don't know how dash charging works I'll post a few links and my understanding of how it works and if I'm wrong at any point feel free to correct me.
Dash Charging - The Technology
The way dash charging works, as I understand it, is that the USB-C cable wires are made wider in diameter to accommodate a larger amount of current being passed through to the battery. The charger plugged into the wall takes on the burden of the extra voltage pushing the current through the wire and keeping it away from the phone's internal battery (which is brilliant). That means that the charger takes on the extra heat which isn't a problem because passive components are often more tolerant of heat than batteries are.
Links:
http://www.phonearena.com/news/How-it-works-Dash-Charge-fast-charging-on-the-OnePlus-3_id82646
http://www.trustedreviews.com/opinions/what-is-dash-charge-oneplus-3
The Issues
A dash power bank could be charged up exactly like the phone; with the dash charger it could fill extremely fast. However, using the battery pack to charge the phone means that the internal Li-Ion batteries of that charger will be taking on the extra heat from within the case which could:
a) shorten the power bank's life span
b) Possibly lead to unsafe power banks if it got too hot
I also see there being limitations with the power bank's ability to maintain a full speed charge similar to wall charging along with what types of batteries would be needed to provide the power output similar to the dash charger.
The Solutions
So in my limited knowledge I think that the biggest enemy here is heat generated in the power bank. I feel like the rest could be overcome with a fairly large bank of 18650 batteries. It is possible to have a passive cooling system built into the power bank for heat dissipation but that might make the battery bank difficult for users to hold on their Pokemon Go outings. Also, reducing Dash Charging specifications just a little, decreasing the speed at which it could charge the device, would alleviate some of the concern. So while you might not get 60% in 30 minutes from the wall, perhaps aiming for 45-50% charge in that amount of time would increase the power bank lifespan and total amount of charges.
What do you all think? I'll readily admit I don't understand completely how current battery bank internals work to limit over-current and over-voltage scenarios as I've never taken one apart. If anyone wants to educate me and say whether they think Dash Charging is possible I'd love to hear about it. This is the kind of stuff I imagine the OnePlus engineers are sitting around working on every week.
i think that would be too expensive to make for consumers, u figure if a dash charge block is almost $30.00 this thing would be well over $500.00 which would be too much for a regular consumer to purchase just to have a portable charger, maybe in about the 3rd or 4th generation of this technology we could see one in about 5 years, they would rather make a ton of 30.00 purchases and have you buy their charge block opposed to very little purchases of about 500.00 for power bank
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
otonieru said:
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
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Click to collapse
I had no idea that even existed. I'm going to look into the specs of that device and see what it has under the hood. Thanks for letting me know about it!
AlkaliV2 said:
I had no idea that even existed. I'm going to look into the specs of that device and see what it has under the hood. Thanks for letting me know about it!
Click to expand...
Click to collapse
Here,
the information page from the maker itself :
http://www.oppo.com/en/accessory-vooc-power-bank
and where to get it :
https://www.amazon.co.uk/OPPO-VOOC-Flash-Charge-Power-White/dp/B00SINEEXA
I'm going to build power bank using Dash Charge car charger. The power banks higher voltage (12V if using car charger) means less current for individual cell while charging. I have bought battery holder case 10 x 1,5V for AA batteries. http://r.ebay.com/vpShFJ (I already have plenty of Eneloop AA batteries for other accessories.) Each Eneloop has at least 1,5Ah (1500mAh) capacity while retaining voltage at or over 1,2V. http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php I'm going to attach 12V socket to the battery holder case so I can use my car charger both in car as well while at camping.
Battery bank consisting of 10 x AA Eneloop has a total capacity of: 12V*1,5Ah=18Wh.
Dash chargers input is rated at 12V/2.5A so each individual Eneloop would have about 250mAh discharge rate.
My old Galaxy Note 3 had 3,8V 3200mAh battery and the capasity was ~12,2Wh. I don't know the nominal voltage of OP's battery but I would estimate it's about the same as Samsung's so the capacity should be lower than in Note 3. Maybe around: 3,8V*3000mAh=11,4Wh.
10x Eneloop batteries has a capacity to give energy for charging OP3 from 0% TO 100% at least. (18Wh/11,4Wh = ~1,6)
I think in India it's not available
Sent From My One Plus 3
https://forums.oneplus.net/threads/new-product-survey-dash-charge-power-bank.457920/
Squabl said:
I'm going to build power bank using Dash Charge car charger. The power banks higher voltage (12V if using car charger) means less current for individual cell while charging. I have bought battery holder case 10 x 1,5V for AA batteries. http://r.ebay.com/vpShFJ (I already have plenty of Eneloop AA batteries for other accessories.) Each Eneloop has at least 1,5Ah (1500mAh) capacity while retaining voltage at or over 1,2V. http://lygte-info.dk/review/batteries2012/CommonAAcomparator.php I'm going to attach 12V socket to the battery holder case so I can use my car charger both in car as well while at camping.
Battery bank consisting of 10 x AA Eneloop has a total capacity of: 12V*1,5Ah=18Wh.
Dash chargers input is rated at 12V/2.5A so each individual Eneloop would have about 250mAh discharge rate.
My old Galaxy Note 3 had 3,8V 3200mAh battery and the capasity was ~12,2Wh. I don't know the nominal voltage of OP's battery but I would estimate it's about the same as Samsung's so the capacity should be lower than in Note 3. Maybe around: 3,8V*3000mAh=11,4Wh.
10x Eneloop batteries has a capacity to give energy for charging OP3 from 0% TO 100% at least. (18Wh/11,4Wh = ~1,6)
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We're going to need a hardware XDA for people like you. I never would have thought to string together Eneloops to make an external charger since most of your power banks contain 18650 with overcharge protection and stuff built in. The wall dash charger is spec'ed to run 5V at 4A and the car charger loses half an amp to land in at 3.5A max. Car charger voltage varies between 3.4~5V from what I can tell probably based on the car's cigarette lighter specs.
What kind of case are you using with the eneloops and what are you using for overcurrent/voltage protection?
otonieru said:
It's actually already there in the market,
named "OPPO VOOC Powerbank"
attached is mine, working fine with OP3 Dash,
Price is around $45-50 - 6000mAH
Charging rate is 3,5A
and it DOES charge my device up to 60-70% in 30 Minutes
it heat up though, especially near the plug (USB C end)
this is why i use the metal based USB C adapter, so it release the heat faster
Click to expand...
Click to collapse
So... can you tell me if a normal VOOC charger block charge the OP3 as fast as the original dash charger in package?
I saw it is the same current rate, but the technology, is it interchangeable?
Just wait oneplus is planning to release a dash charge powerbank with 10000mAh so stay connected no need to buy oppo 6kmAh one
AlkaliV2 said:
The wall dash charger is spec'ed to run 5V at 4A and the car charger loses half an amp to land in at 3.5A max. Car charger voltage varies between 3.4~5V from what I can tell probably based on the car's cigarette lighter specs.
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Click to collapse
You are right, the car charger uses lower current and is probably a bit slower. When I receive my car charger I will do some testing and will report back.
The voltage variation is needed on all chargers. When the battery is almost full the charging voltage drops.
AlkaliV2 said:
What kind of case are you using with the eneloops and what are you using for overcurrent/voltage protection?
Click to expand...
Click to collapse
I have ordered a case like this: http://r.ebay.com/vpShFJ
The car charger has been designed to be used as it is. The charger itself does not require additional overcurrent protection but in case of a short circuit a 5A fuse is needed to protect the wiring and Eneloops. Overvoltage is not a problem as the maximum voltage with Eneloops is going to be under 15V.
DouglasDuZZ said:
So... can you tell me if a normal VOOC charger block charge the OP3 as fast as the original dash charger in package?
I saw it is the same current rate, but the technology, is it interchangeable?
Click to expand...
Click to collapse
Yes it is. I've posted it in another thread as eell. Just check through my post history.
This is pure logical, since Oneplus is just a subsidiary company of OPPO, so they surely can share few technologies between each other, and VOOC/DASH is one of it,
Just make sure your usb c adapter quality is good when you decide to use it with VOOC charger.