Hi. I was reading about batteries, and I read that lower quality (specific type wasn't mentioned) batteries tend to "sweat" battery acid, slowly damaging the hardware of whatever it's being used in. My question is, due low quality (like, the cheap chinese replacements you find on eBay) lithium-ion batteries do this?
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Currently I have one of the 4 x AA battery extenders which copes not badly for the average day trip, but often means getting a set of extra batteries while travelling.
This can be a compete pain if I am travelling on a longer trip and and have a stop on a bus/train in some place where I was not staying long enough to buy currency, and they dont take cards.
So...
How about soldering a USB cable onto one of these (last row is the UK price).
6V 4.5Ah SLA L21AC 7.99
6V 10ah SLA UD07H 13.99
6V 12ah SLA UD08J 14.99
6V 7Ah SLA N33FR 1034 3.99
Remember the Ah rating is for 6v - so 5 times the equivalent of one 1.2v rechargeable AA or 4 times that of a 1.5v disposable.
http://www.maplin.co.uk/module.aspx?ITAG=SPEC&ModuleNo=19363&doy=1m2#spec
The downside is they are obviously heavier, but have 3 times the capacity of standard rechargeables at under a kilo (but are small enough for the smallest side pocket on a rucsac).
The only downside is I dont know if they leak if battered.
Any suggestions/ideas?
wizardragon said:
The downside is they are obviously heavier, but have 3 times the capacity of standard rechargeables at under a kilo (but are small enough for the smallest side pocket on a rucsac).
The only downside is I dont know if they leak if battered.
Any suggestions/ideas?
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Click to collapse
Have you thought about Li Ion or NiMh batteries, they give better performance, last longer and more importantly are lighter. I use them on a converted electric mountain bike......
Another option might be something like this...
Freeloader Portable Solar Charger
http://www.maplin.co.uk/Search.aspx?menuno=11936&FromMenu=y&doy=1m2&MenuName=Portable Energy Source
Specs say can run a PDA for 22hrs on its internal battery which is recharged by solar panels.
Good luck
Thanks
I had looked at the freeloader, but it does not really hold enough power as the battery drains at an alarming rate on trains or coaches as it tries to find cells, and using the net, playing music, keeping the display on, videos eats the battery power to much to make a freeloader viable on long journeys.
Also - a free loader is not really viable to get a recharge on a plane, or train or bus if not at the sunny window side.
However, could you recommend any larger capacity NiMh or Li ion batteries that don't break the bank?
Cheers
wizardragon said:
Thanks
Also - a free loader is not really viable to get a recharge on a plane, or train or bus if not at the sunny window side.
However, could you recommend any larger capacity NiMh or Li ion batteries that don't break the bank?
Cheers
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Click to collapse
I take your point on both counts.
The Li-ion battery packs that I use on the bike are 36V 2Ah Bosch cordless power tool batteries. Perhaps the power tool battery option might be suitible, as batteries/chargers are readily available and you could get a cordless drill as a bonus.........
Thanks/
I have a Bosch cordless hammer drill and the battery fits under around and to the front of the grip, but its massive, probably heavier than my motorcycle battery too. The charger for it is also pretty big.
How did you drop the voltage to make it work to charge in a USB range, as wont the internal resitance of the PDA vary vastly depending upon which functions it is performing?
I had noticed maplins did battery boxes for projects and had thought about either a 4x or 8x of C or D batteries or a 4x or 5x, C or D cheapo Maglite clone just to use for the battery storage tube.
However the downside with C or D batteries is most of the rechargable ones dont hold much over 3Ah unless going into the heavy price range, although these are starting to fall.
Did you find any specific battery with a good shape/weight/price/capacity?
I don't know if this is showing my lack of understanding but...
I have just purchased two anker 1900 mAh batteries together with their own charger with a view to interchanging them when i am out and about with no access to a charger.
How will this work with reguards to battery callibration and battery stats?
I guess, to all intents and purposes, these two batteries will be practically identical at least straight out of the box.
Also, would it not confuse things further if i brought my original sensation battery back into the equation?
Any informed opinion would be much appreciated.
hello.
is it correct that the anker extended battery for the s4, should be showing a capcity of 2600mah in battery monitor pro?
is it because it is 2 x 2600 batteries joined together?
bit confused.
To my knowledge battery Mon pro won't be able to automatically determine accurate capacity of the battery when you just plug it in. It has to calculate it through extended use by monitoring discharge rate, and even that is not accurate.
anker 5200
same as me,
i try using battery doctor or du battry saver but it's only show 2600 mah in system.
i wonder how to make it show 5200mah
just watch the voltage. You will know what it's got left by watching the voltage drop after a few days. The cheap apps are telling you 2600 because that's what the phone comes with. It's written in
Use Android Tuner or battery calibration on appstore, they give actual voltage
Any Doubble Power Battery ???
Six hours continuous use
Confirming my Anker 5200mAh Extended Battery provides six hours continuous use with my Galaxy S4.
Very happy with my purchase, and recommend the Hyperion HoneyComb TPU Extended Battery case for use with this extended battery.
how much do you know about external chargers
samuelson said:
hello.
is it correct that the anker extended battery for the s4, should be showing a capcity of 2600mah in battery monitor pro?
is it because it is 2 x 2600 batteries joined together?
bit confused.
Click to expand...
Click to collapse
many external chargers especially ordinary chargers are oversized in capacity. though they may be very cheaper, they are usually shoddy and deceptive. i recommend you to read this article.
Don’t buy external battery before you read this!
As we have more and more gadgets, we are expecting our gadgets can always work when we need them. Our gadgets can do almost everything — until they run out of fuel. Times when you need to make that important call, send out an urgent e-mail, or need to use the apps on your device – but alas there is no battery…we’ve all been there and know first-hand the stress of being offline when you need to get things done!
External battery is indispensable for our smart life, but how much do you know about the external battery? Does your external battery really charge your gadget or make the damages to your battery of gadgets?
1) What’s external battery?
External battery serves as an ‘extra battery’ or external charger for your phone or other electronic devices.
2) Where is external battery made from?
Majority of the external batteries in the market are actually made in China. And the battery cells or PCB modules are from different countries.
3) How do I charge the external battery?
You can charge your external battery via the charger that came with your phone, computer usb port or using other external battery
4) How long do I need to charge the external battery?
It depends on the REAL CAPACITY of the external battery. The larger REAL CAPACITY, the longer charging time may required. Different charging methods may result in different charging time as well. Charging with the original charger will be faster than charging with computer usb port.
5) Why sometime I need longer time to charge the same external battery?
Even though using the same charging method, the charging time may be differ due to environment, temperature, power flow and etc.
6) What is mAh?
mAh mean milli Ampere Hour, the capacity of the external battery is measured with mAh
7) Is a 12000mAh REAL CAPACITY external battery, able to charge a 1500mAh capacity phone for 8 times full?
This is a common mistake made by most of people. For rough calculation of the total charge time, kindly use this formula
REAL CAPACITY * conversion rate * phone battery health / phone capacity = total charge times
EXAMPLE: 12000 x 0.8 x 0.8 / 1500 = 5.12 charge times (0.5-1 times plus minus)
8) What’s conversion rate?
Conversation rate is the remaining percentage of the battery after the battery loses in heat or PCB operation.
9) What’s phone battery health?
In simple, it means how ‘healthy’ your phone battery is. Phone battery storage capacity will be lower and lower. That’s also the reason why our phone can last longer when it’s newly bought than after 3-6 months of use. Different mobile phone models also will affect the calculation as some phones drain battery faster than others.
10) What’s PCB?
PCB means Printed Circuit Board, which controls all the operation flow inside the external battery. A good quality PCB will allow the external battery to charge more and have better durability
11) What’s the difference between 18650 and Li-Polymer in the external battery?
- 18650 size and dimension are fixed. Li-Polymer size and dimension are flexible.
- 18650 produces more heat. Li-Polymer is much safer
- 18650 is cheaper. Li-Polymer is more expensive
- 18650 has a higher self discharge rate. Li-Polymer has a very low self discharge rate
- 18650 battery capacity drops faster. Li-Polymer battery capacity is more durable
12) What’s the common REAL CAPACITY in 18650 external battery in the market?
- External battery using 1pcs 18650 is 1200mAh – 2600mAh
- External battery using 2pcs 18650 is 2500mAh – 4400mAh
- External battery using 3pcs 18650 is 3750mAh – 6600mAh
- External battery using 4pcs 18650 is 5200mAh – 8800mAh
- External battery using 5pcs 18650 is 6500mAh –11000mAh
- External battery using 6pcs 18650 is 7800mAh –13200mAh
- External battery using 7pcs 18650 (no info)
- External battery using 8pcs 18650 is 10400mAh –14400mAh
1 3) Is there any external battery with a capacity higher than 2200mAh per 18650?
Yes. There are, but it’s not common due to the expensive pricing.
14) What’s the difference between branded external battery and generic external battery?
Branded external battery is mostly sold in REAL CAPACITY. Generic external battery is mostly sold in MARKING CAPACITY. That’s the reason why you will never see any branded external battery (standard size) with a capacity as high as 30000mAh – 50000mAh. That’s also the reason why a good 12000-13000mAh external battery is able to charge more or almost the same as the market level of 30000-50000mAh. Most of the external batteries sold on amazon.com with low price are MARKING CAPACITY but not REAL CAPACITY. Those with higher price and long warranty(more than one year, some brands offer 18 months of warranty, like Sony, KINKOO, Xstorm) are REAL CAPACITY and reliable.
15) Is it true branded external battery won’t explode and generic external battery will explode?
Anything to do with battery will have a chance to explode. No matter it’s branded external battery or generic external battery. But chances for both branded and generic external battery to explode are very low, except for those cheap and poor-quality 18650 batteries. And the Li-Polymer is safer than 18650 battery, it’s easy to fit the high-temperature environment.
,
I have an RC Quadcopter with a 7.4v 650mAh 14500 Li-ion battery, I want to replace the batteries with higher capacity ones.
I found these, they're identical in all the details except with a higher mAh.
My question now is, would the old charger work with these? The charger's output is 7.4v 800mA.
Any help would be appreciated, thanks!
Hey,
I bought these batteries for my Galaxy S3:
http://www.ebay.ca/itm/221508526410?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
I charged one of the two batteries with the provided wall charger. The first battery is bulging and displayed only 90% charge.
I charged the second one with a wall charge I bought from ebay that I used to charge random ebay 10$ batteries (they served me well). The second battery is performing very well, 2h of use with only 10% discharge and didn't bulge.
I filled a paypal claim but I wonder if I should keep using the battery. I suspect the provided charger is not good but I wonder if it could cause the issue. I am really tempted to try with another battery but I will first wait to see what happen with my claim. I thought Anker would be more reliable than those chinese batteries (that are certainly not 2100mah like claimed).
Anyway, have you experienced some thing similar? I am planning to keep my S3 for a good year before I grab the S6 so I was looking to get extra battery life-time. At the moment I had to change a battery every day and it is getting annoying.
Batteries/Chargers that are non-OEM
Hey Buddy,
I had the same issue with my Nokia N series phone battery a long time ago. I had bought a non-OEM battery from ebay compatible with the phone handset and landed in trouble after using a third-party charger. I had to finally search online for a OEM (Nokia branded) battery and used to charge it only when inside my phone using the phone OEM (Nokia branded) charger. I used that without any issues for quite some time (around 6 months).
I'm no expert but I figure the mAh rating is very important while choosing the battery, we know the higher is better in terms of holding charge but it is not in case of an internal battery because the OEM batteries are made to charge using the phone's internal circuits (that explains why some batteries bulge and even explode when using a non-OEM battery/charger combination).
To cut the long story short I suggest you to look for a refund from your seller, the next step would be to search for a battery which is OEM (which is what I did) see the pic that's an OEM battery i presume.
There are various issues with third-party batteries all over the internet (google it) but the important one is that they tend to get heated up while charging and when used inside the phone. As a fellow Androider I would suggest you to stick onto OEM batteries and chargers (best you buy one in ebay which has a SAMSUNG OEM logo with a S/N)
Hope this helps you out bro, as I said I'm no expert but just sharing my own experience and information I gathered.
Peace,
Syed