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I am initiating my third project this winter season.
Purpose of this project:
The project is to successfully make a 9600mAh battery @ 3.7VDC.
Objective:
Use least amount of resources. Battery should be created easily by anyone. Budget is less than $100 USD.
Materials:
3x 3200mAh Li-Ion batteries
4x Copper conduit cables with plastic wrapping
- 2x Copper cables 5mm Width, 4-5cm Lenght.
- 2x Copper cables 1-2mm Width, 4-5cm Lenght.
1x Tin (Sn) Soldering Unit.
1x 2-3cm battery door.
Procedure:
1. As you see there are 4 compartments of power conductor on the battery (metal copper) where the battery touches the Universal pins.
2. Stack up all the batteries so that they are one over the other in same position parallely.
3. Take the copper cable and connect it to each batteries metal spot. Ofcourse the bigger compartment is going to require the 5mm wire and the other small ones will require 2mm.
4. Solder the wires tightly and they must touch all the compartments.
5. There should be a little bit of wire left in the end and that wire must touch the first battery a bit.
6. Make sure you do not use excess wire otherwise all the batteries wont fit in the battery door.
7. The first battery will clip into the Universal but now here is the modification you have to make to the other batteries.
Break off the clips on the other batteries. Front and back slip in clips. This will enable the batteries to fit in the case and probably make room for the copper wires too.
8. Now here is the problem. If you are making a 4800mAh battery stack (3200mAh + 1600mAh) then you are lucky and can custom order a battery door. For the other people making 9600mAh or 6400mAh you will have to make your own battery door probably by using molding plastic tools.
Now please keep note not to ever ever ever solder anything to the pins on the Universal power recieving wires. Otherwise you are in big trouble and probaly damaged the power supply but you can cut the solder off.
Results:
So this is the array of batteries you have just built. I will built a 5000mAh battery so this is how it will work for me. i have a 1800mAh battery that is of normal flat size and a 3200mAh battery. Both of same 3.7V ~ VDC. Therefore, we can conclude that both stacked. The wires were connected parallely and i preffered to break the clips on the 3200mAh battery since my 1800mAh is metallic. I asked Lion Battery to send me a battery door for their 4800mAh batteries and they arranged it for $10 or something and it fit my battery stack because it was approximately 1cm extended.
So first the wires were soldered on the 3200mAh and then they reached down to the 1800mAh. The 1800mAh connected independently to the pins on the Universal. The Universal is now drawing power out of both 3200mAh and 1800mAh batteries!!!!
Conclusion:
I saved $200 on a 5000mAh battery.
Good luck on making your battery stack. Try to post pictures and information if you to undertake this project and are successful.
Regards.
I will buy only if the size remains the same size as 1620mA original battery.
Anything beyond the size is bulky, considering Universal itself is already bulky.
CWKJ said:
I will buy only if the size remains the same size as 1620mA original battery.
Anything beyond the size is bulky, considering Universal itself is already bulky.
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Click to collapse
I agree. The maximum available at flat size is 1800mAh. Single Battery. But the point of having the universal is functionality. I dont use it to talk. I use the BT headset.
nuclear
Use car battery and you solve all their own problems
.Will much long work!
Show us photo your super batteries!
If will be a photo we all shall believe that you technical genius!
It would be a Nuclear device...beware
You should realy start to think about your 4th project:
Making BAG for project N3
Guys be nice...
Nuclear any chance of some photos? Put them on Flickr etc.
What kind of usage time do you get?
V
YES, be nice... because in theory as long as you connect the batteries in PARALLEL you are not increasing the voltage, but you are increasing the capacity, thus longer battery life. As a matter of fact, you can stack as many as you want.
Now if you are connecting the batteries in SERIES, then you are going to fry (TOAST, if you prefer) your precious Universal.
vijay555 said:
Guys be nice...
Nuclear any chance of some photos? Put them on Flickr etc.
What kind of usage time do you get?
V
Click to expand...
Click to collapse
Offcourse I'm joking - but actualy it will be powerfull Universal without chance to put him in .... pocket
i was just thinking of this last night, and there a thread.
anyone have any idea how to make a battery door, or what i call it a battery cover with ease? i do not own any plastic moulding tools
omega_ said:
i was just thinking of this last night, and there a thread.
anyone have any idea how to make a battery door, or what i call it a battery cover with ease? i do not own any plastic moulding tools
Click to expand...
Click to collapse
I find making a battery cover/door very easy personally. I did not post upon how to make a battery cover/door but after a lot of thinking i have come up with the procedure to do that too.
1. Order 2x 3200mAh batteries from ebay or anywhere you like. The batteries will include their individual covers. Note that you must order the battery with the square black door and not the aerodynamic silver door. You can also order individual battery doors from ebay by requesting the seller
2. Therefore you will be making a 6400mAh stack of battery.
3. This is where you have get to make a choice. Either to keep the batteries in one compartement or to keep the batteries in separate compartements (recommended).
4. Keeping the batteries in separate compartements helps in cooling effect and prolongs the life of the batteries because batteries emit EMF waves that could damage each other. When the batteries are kept separately they have no chance of effecting each other.
5. Also note that the batteries charge and discharge simultaneously due to charge distrubution factor of 1/2 .
6. Ok now to make the cover. First we will look at the single compartment where both batteries sit together.
- We have two covers and classify them as Cover A and B.
- Cover A will clip into the Universal directly.
- Cut out cover A's roof using a hot cutting knife (recommended to keep soft edges). Let the Cover A cool down and you may now throw away the roof of cover A.
- Cut out the base or rim of Cover B. You know the rim that sits on the Universal. The flat rim part on Cover B must not exist.
- Cover B must now look like a perfect rectangle without any edges because it will sit on Cover A and you will attach them by heating up Cover A and Cover B edges so that they both bond up. You can make this bond either by using permanent glue or moulding using a chisel heat knife.
- So now you have successfully made a 6400mAh battery door. Make sure there is enough room for the wires to pass. Good luck.
7. Now to make the separtate compartement battery holder.
- Cut out the rim of Cover B using the hot knife method.
- Make Cover B sit on Cover A exactly in the same co-ordinates.
- Mold them back and make the bond between Cover A and B so now they are Cover A-B.
- Make a hole in Cover A's roof so you can pull out the wires that are going to Battery B in cover B. Make sure that the battery is first in cover B and you solder the Cover A and B with the battery sitting in Cover B. You wont be able to take out the Battery from Cover B because now it is sitting permanently in Cover B fully SEALED! . Make sure you don't solder the Wires to Battery B before this step.
If additional space is needed or the batteries are heating up, just use a metallic 2-5mm stick to make a gap between Compartement A and B.
When i start doing this i will post pictures of the battery stack and my new battery door.
Good luck in making your battery door.
By parallel battery stacking i mean that 1 wire goes through all the batteries touching each batteries metal compartment, since Universal batteries have 4 of these compartements we going to have 4 wires touching each of those metal parts. All the 4 wires must run parallely without touching each other. And that is why we cover them with plastic.
Now if I am correct a series connection is where all batteries connect directly to the Universal, which will fry the universal due to excessive voltage input around 10-12Volts. When the batteries connect all in line then its a parallel and voltage input does not change. Its only the capacity that changes. But you must make sure a wire is running directly to the universal and all the other batteries are connected to that wire. Its like a branching except the main branch connects to the Universal and all the sub branches are the batteries.
I will post pictures when i get home of what i am looking for. It seems words arent enough. Pictures Pictures Pictures!! and Diagrams. I know you all want to see the blueprints. Thats why when i go home today i will make the blueprints in autocad or by hand and upload pictures here. I will also show you what series connections are and how you can fry the battery/Universal if a wrong connection is made.
I personally wont be attempting this project until i make a good cover for the battery. I will ask those 4800mAh battery sellers to give me a cover without the battery for $5-$20. Dont want the 4800mAh battery from those sellers $200 .
Actually now that i think about it i would like to stick with 1800mAh only because its so flat with the universal and not at all bulky. But i dont care about the bulk because i never use the phone to call. Like i never hold it to my ear. Always use a BT headset. This bulk battery is seriously going to be heavy.
Truly I would advice you all to stay with the 1600-1800mAh battery until a new battery is released of the same size with higher capacity.
Okay if you guys really want me to attempt this project I will. But I wont be using that huge stack. Also if someone could help me I would really appreciate it. Afterall I am trying to help you guys too. I dont want you guys spending so much money on something thats so cheap. You guys already spent a lot of money on the Universal and I suggest you dont get cheated by this battery thing. Thats why I didnt have any pictures. But i can atleast provide blueprints. I am doing all this for you guys and not personally for myself. I could have done this project at home and never let any of you know. But there are some days when I am struck and I come looking for help on the internet and i get that help. Thats why I would also be a part of that help and help other people with all I have to offer. So please dont get mad if i dont have pictures or my setup does not work. I am trying my best.
Parallel Battery Stacking
My first picture of how parallel stacking should look like. This is one of the blueprints i post. Make sure your wires are minimal. Very small wires otherwise the batteries wont fit in there. Even the cover must be able to support the wires. If you are making a twin compartment battery case, then better make holes in the partition for the passage of the wires. I will post a blueprint for that too, the cover that is. The key to success in this project is to minimize wires as much as possible.
Also good news! A recent technology has been invented that lets you charge your electronics on wireless!. Plug in the adapter into the wall and there you go. You have wireless charging. I saw this news somewhere I dont remember exactly but I know it was a valid news source.
nuclear said:
My first picture of how parallel stacking should look like. This is one of the blueprints i post. Make sure your wires are minimal. Very small wires otherwise the batteries wont fit in there. Even the cover must be able to support the wires. If you are making a twin compartment battery case, then better make holes in the partition for the passage of the wires. I will post a blueprint for that too, the cover that is. The key to success in this project is to minimize wires as much as possible.
Click to expand...
Click to collapse
As you make the wires thinner, they will get hotter/the resistance of them will go up, causing more power consumption
nuclear said:
Also good news! A recent technology has been invented that lets you charge your electronics on wireless!. Plug in the adapter into the wall and there you go. You have wireless charging. I saw this news somewhere I dont remember exactly but I know it was a valid news source.
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Charging your electronics on wireless? >.>
As has been asked before for your claims, links, sources... come on man, we can't take your word for everything.
Another alternative ... although not as much fun as making one
I had the same problem of not having enough battery capacity, especially since the original battery starting going bad (it would shut down at about 50% charge, lasting only 30-60 minutes). So I had the choice of getting the original battery for about $25 with shipping or getting the 3150mAh Li-ion Battery for $35 with shipping. I got the 3150mAh about a month ago and have been very pleased with it. It easily lasts 4 hours under full load and I could go a whole working day under normal use ... amazing !!! Also, it actually feels better holding onto the device, since it's easier to grab onto with the indents on either end of the cover. It's wonderful, not having to worry about carrying around my charger everywhere. I ended up getting it from www.Gizmos2Go.com (http://www.gizmos2go.com/xcart/search.php?mode=search). They were out of stock when I ordered it, but were very nice about keeping me up to date on the progress. Although, it's available elsewhere, so shop for the best price ... http://www.google.com/search?hl=en&lr=&q=Li-Ion+battery+High+Capacity+3150+jasjar.
Another alternative I use is to use a mini-USB "batter extender" that works with 4AA batteries. It's worked well with the Universal with Li-Ion batteries. Here's a link to one of these types of chargers ... http://www.pocketpctechs.com/main~u...ries-power+accessories~item~USB-BATADPT01.htm.
I know these aren't nearly as much fun as making one yourself, but they both have worked well for me. Anyways, I hope this helps someone make a decision.
olliesshop said:
I had the same problem of not having enough battery capacity, especially since the original battery starting going bad (it would shut down at about 50% charge, lasting only 30-60 minutes). So I had the choice of getting the original battery for about $25 with shipping or getting the 3150mAh Li-ion Battery for $35 with shipping. I got the 3150mAh about a month ago and have been very pleased with it. It easily lasts 4 hours under full load and I could go a whole working day under normal use ... amazing !!! Also, it actually feels better holding onto the device, since it's easier to grab onto with the indents on either end of the cover. It's wonderful, not having to worry about carrying around my charger everywhere. I ended up getting it from www.Gizmos2Go.com (http://www.gizmos2go.com/xcart/search.php?mode=search). They were out of stock when I ordered it, but were very nice about keeping me up to date on the progress. Although, it's available elsewhere, so shop for the best price ... http://www.google.com/search?hl=en&lr=&q=Li-Ion+battery+High+Capacity+3150+jasjar.
Another alternative I use is to use a mini-USB "batter extender" that works with 4AA batteries. It's worked well with the Universal with Li-Ion batteries. Here's a link to one of these types of chargers ... http://www.pocketpctechs.com/main~u...ries-power+accessories~item~USB-BATADPT01.htm.
I know these aren't nearly as much fun as making one yourself, but they both have worked well for me. Anyways, I hope this helps someone make a decision.
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Hey thanks ollie, this helps a lot. I really like external power, 4AA batteries are nice. I can use my AA 2700mAh battery and 4 of them will make the Universal last a long time. I really like my 1800mAh battery and with this external power idea i can use my universal for a long time. I use my universal in my car, office and work. I am mostly using my headset so make/answer calls. So I could stick to the 1800mAh and put my universal in a leather case and belt clip and carry it around. While i want to play games or chat on msn i can hook up the external AA batteries and the batteries will be in my pocket while i am using the universal.
Yes thats the one and last thing i want to know. If the cable is long enough to hide the AA external batteries... atleast 60-100cm
Pics
Nuclear,
Your project really intrigued me. Do you have any pictures of your work in progress or finished product? Thanks.
I have a Sino battery from eBay, insanely cheap (something like £16 shipped) with the bulgy cover. Works brilliantly.
I'm amazed by some of the claims of poor battery life. I make very little use of my device, but I also seem to get 4 days+ of standby/occasional use with this battery installed! As in, take it on holiday, show it to people, make a couple of calls, play a couple of games, bit of WiFi in the pub - that sort of thing - and it had 39% charge after four days.
Pyrojester said:
As you make the wires thinner, they will get hotter/the resistance of them will go up, causing more power consumption
Click to expand...
Click to collapse
I think nuclear means shorter, not thinner - reducing any resistance
We have three Epic 4G phones in my family. Two of them would exhibit strange battery behavior where the battery % would drop by 20-30% suddenly, and in one case, refused to charge even though the indicator said it was at 100% while it was plugged into the charger (or USB). (I'd unplug it and it would drop instantly to some random low %.)
After experimenting with ROMs and kernels, none of which provided a permanent solution, I finally discovered the problem.
Loose battery.
The batteries in some Epic 4G phones simply don't fit snugly enough to work properly. I selected a bit of thin cardboard and folded it around the bottom and back of the battery to hold it snugly in place (add another thin piece if it helps the fill in the space between the battery and back of the phone). Now the batteries in the two erratically functioning phones work normally.
Cardboard may not be the best material for doing this, but if cardboard works for you, I'm sure you can find a better substitute if you've established this is the cause of your battery problem.
"Borrowing" some info from here, I successfully implemented kind of the same technique on my Ringke SLIM case.
The benefit of this is that you don't have to dismantle the phone at all ...
I'm really pleased with the result.
I have here some pictures. I was too excited so I did not took photos of the entire process but the ones who might try this can combine the original tutorial linked above and these photos to understand the process.
The case was modified on the inside but you can not tell this from the outside .
The connectors are made of metallic copper/steel springs shaped as the case. The tip of the connectors have small soldering lead balls trimmed to fit the pogo holes. In this way there is always a little pressure on the connectors and the contacts are perfect.
And here is a short video with the final result/functionality:
that is fantastic. nice work.
"you are my heroooo"
How long does the nexus have to sit on the touchstone before it registers that it's charging?
are there any concerns of overcharging?
(like if it were left on overnight)
Does it charge as quickly as a usb plug?
I only can answer the following in this moment:
-The "charging" message is popping up in about ~10 seconds after placing the phone on the dock. This delay is normal for the docks with pogopins (this case) because the phone needs to know it is placed securely in the "dock" before it will start charging itself. Otherwise, if the charging will begin instantaneously, there is always the danger to play around with the phone (like putting in and taking it put quickly) and the battery will have to suffer.
- The voltage output of the induction circuit is 5V, exactly as the regular charger and the voltage is being applied on the pogo pins, exactly like the original dock => no concerns of overcharging.
As for the charging current and how long it will take to implement a full charge ... it seems that is charging 20% per hour (compared with 30% per hour if I'm plugging in the wall charger directly).
ro_explorer said:
The "charging" message is popping up in about ~10 seconds after placing the phone on the dock. This delay is normal for the docks with pogopins (this case) because the phone needs to know it is placed securely in the "dock" before it will start charging itself.
Click to expand...
Click to collapse
In the thread linked-to in the OP, it's been reported that there's a correlation the charging delay and custom ROMs.
At least one person whose handset is running stock ICS is able to charge with no delay whereas everyone who has reported a delay is running some sort of custom ROM.
Not sure if that's just a coincidence borne of a statistically-insignificant sample size but it certainly seems like there's more to the delay than meets the eye.
This is seriously cool, and very non-invasive to the actual phone! I might try this myself
Excellent work,
and...it is not easy for me
Very cool, I wonder if you could use an extended battery cover with a stock battery and just build the inductive charger into the cover. Not sure if you'd be able to run leads straight to the battery, though, might still have to go to the pogo pins so it might be a bit invasive still.
what material did you use to make contact with the pogo pins?
I'm wondering what you used to carve out the inner part of the case?
What does it say under settings -> battery? Is it USB or AC?
And what steps are the same compared to the linked method in your first post?
Fresh from my GNex
Good job ro, as usually.
Stadsport said:
Very cool, I wonder if you could use an extended battery cover with a stock battery and just build the inductive charger into the cover. Not sure if you'd be able to run leads straight to the battery, though, might still have to go to the pogo pins so it might be a bit invasive still.
Click to expand...
Click to collapse
That one is another mod and is the one that lead me to this one . Check it out in the tutorial used for inspiration (first link in the OP).
4Pr3mier said:
what material did you use to make contact with the pogo pins?
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Click to collapse
soulicro said:
I'm wondering what you used to carve out the inner part of the case?
Click to expand...
Click to collapse
calubren said:
What does it say under settings -> battery? Is it USB or AC?
And what steps are the same compared to the linked method in your first post?
Fresh from my GNex
Click to expand...
Click to collapse
All these questions have answers in the attached photos .
For the contacts to the pogo connectors I initially used some aluminum foil but I saw (in few hours) that the contact was intermittent so I looked for another solution. Currently I've implemented two metallic connectors with a little soldering lead on the connector side so it will have a 3d shape that will fit the pogo counterparts (I've updated also the OP with the new connections).
The common part between my mod and the original one is the usage of the same touchstone parts, the "dismantle" of the palm battery cover, the voltage tests and the general way the connections are done. Basically is ~80% the same stuff only that is not being applied to an extended battery cover.
Stadsport said:
Very cool, I wonder if you could use an extended battery cover with a stock battery and just build the inductive charger into the cover. Not sure if you'd be able to run leads straight to the battery, though, might still have to go to the pogo pins so it might be a bit invasive still.
Click to expand...
Click to collapse
You want want to read this thread then, as well as the one the OP linked-to, both of which are dedicated to that very idea - fitting the charging coil and connection to the pogo pins inside the handset.
I took a short video with the final result: http://www.youtube.com/watch?v=QOgMZt2xk_0
In the second part I've activated "Desk Home" (an app that will trick the phone into thinking it is docked when you plug in a charger) and I've triggered "Night Clock" with it
Excellent! Great use for parts I have left over after the old palm pre died last week.
Can it charge faster than GPS usage + Pandora can drain it? Thats something that would interest me. If i could use it in the car, pandora + navigation running, and actually have it charge. Would ya mind doing a quick test for me ?
This is exactly what i was looking for. Did a search on here, other forums, and even threw a few keys words googles way and didn't come up with anything until tonight when i saw this. I'm going to have to get something like this setup as i already have a wireless charger (same standard as the palm puck) so it's only natural to want to use it. Would you have any recommendations on what case to use with the LTE version sporting the extended battery?
@machiz7888: The inductive coil is transferring about ~400-450mA (equivalent to about 1.6-1.7W of power).
our device is draining about 1.2W just using the screen at maximum brightness (the standard car situation). If you are using navigation with the screen on and pandora at the same time, there is no way the coil will ensure the necessary power to sustain the full phone activity => the battery will drain a little.
Just turning off the screen should help the power balance and the phone should charge even under heavy load.
@stearic: The only case that can be used similar with what I did but for the LTE version would be the Case Mate barely there. I have no idea for extended battery what you could use. I'm also searching for a solution because I already ordered an extended battery and I don;t want to be force to choose between the two things (inductive charging or ext. batt.)
Credit to ttabbal for starting the idea in the accessories forum. With that said,
This will be a process as I'm waiting for parts. Please bare with me. I will be including pics and possibly a video of complete tear down of both batteries all the way to installation in the phone.
Requirements:
Soldering skills
Soldering supplies
18awg wire
Other things still in the process of being thought out. Stay tuned!
2- Samsung OEM 1850mah stock batteries. Can be had at various prices.
1- Seidio extended battery back plate. Quality, fitment and price were my deciding factors. $14.95 directly from Seidio plus shipping. Call them directly at customer service (832)204-1118.
Disclaimer: I take no responsibility for any damage. Time and patience are required.
1. Remove Samsung label
2. Remove black cap on top of battery. Pretty much falls off with sticker.
3. Peel away NFC sticker leave intact for now on battery and pcb board.
4. Break away metal tabs on end of pcb and lift away nfc antenna and pcb board.
5. Completely remove antenna and pcb.
6. Clean thermal type paste off by gently peeling at one corner followed by rubbing alcohol.
7. Remove label and peel up nfc antenna on second battery. DO NOT REMOVE!
8. Place battery that goes into phone down and put bare battery on top as in the pics. I taped them together with clear 3m packing tape.
9. Make sure eveything lines up.
10. Seidio back came in the mail! Fitment is a little weird at first but once its all snapped in, it fits fine and it has a nice feel and its not totally huge.
Update
Updates:
4/23/12 ordered all parts needed, started initial process.
4/24/12 At work. Will update with more pics tonight. Have a variable temp. soldering iron in my possession as well. All items have been shipped. Pics will include tear down to bare battery without PCB and nfc antenna as well as removed paste substance that was under antenna.
Continued: Added more pics of battery stripped down with explination
4/25/12 Will take voltage readings with my fluke and simpson meters and label polarity on points on battery. Also will do some calculations to ensure the stock charger will be sufficient. Source a quality 18awg wire from work. Not much else I can do until parts come in. Getting excited about having 3700mah of prime Samsung battery power!
Continued: Second battery came. Did some more work.
4/26/12 seidio battery cover came in! No further work done.
G-Nexus
Codename android Nightly
007 Kernel
Hybrid 3 Radios
hmmm.... i may buy an extra battery to try this.
awesome thanks for the write up. look forward to seeing how it turns out
Updates!
CodeName Android
007 kernel
Hybrid 3 Radio
Update! Second battery arrived!
Sent from my Galaxy Nexus using Tapatalk 2
Updated with pics
thanks for the updates
Any comments on how the write-up is turning out? Suggestions?
uh what's going on here? i don't understand.
Two stock batteries are getting wired together in parallel to build a high quality extended battery. There is no comparison to OEM batteries. The after market stuff is crap.
The problem will be the charging circuit. Both batteries will only get half the current they are expecting.
Incorrect. 3800mah will charge at .5A in approximately 6 hours. I'm not sure what the rating is on the stock charger but if its 1A then it would take approx 3 hours for a full charge. Here will be no charging issues.
You're a go getter! I'll be keeping my eye on this. Nice work.
Sent from my Galaxy Nexus using Tapatalk 2
Crazy what a recession will drive people too...just carry the 2nd battery in your pocket...why risk frying your phone on a handmade extended battery?
but i respect u for doing it. good luck man.
How would it fry? They are batteries wired in parallel. I deal with high cost electronics everyday and know what's going on here its a battery, as long as its wired with correct polarity there will be zero issues. Positive to positive, negative to negative. Tried the whole second battery back in the day with an incredible. That lasted one day.
Come to think of it I'd be afraid of the second battery developing an internal short and melting in my pocket.
I have my second battery on the way hopefully to be here by this weekend. Can't wait
Just so you know soldering this ***** will not be for the faint of heart. Talk about tight quarters.
if you could get this to work. make a bunch and sell them at a lower price point than the aftermarket extended batts while still making a profit for your hard work
I didn't want to pay the 100$ for a Mugen branded one so I decided to get a no name branded one for cheap! It's only 15$. I will see how it is and post a review about it.
Link: http://www.ebay.com/itm/11084769968...X:IT&_trksid=p3984.m1497.l2649#ht_3542wt_1270
Branso07 said:
I didn't want to pay the 100$ for a Mugen branded one so I decided to get a no name branded one for cheap! It's only 15$. I will see how it is and post a review about it.
Link: http://www.ebay.com/itm/11084769968...X:IT&_trksid=p3984.m1497.l2649#ht_3542wt_1270
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Click to collapse
I bought this exact one and it works great.
Ill do a brief review now...
It does last almost twice as long as stated and the great thing about this is that it comes with an extended back door AND a wall charger for your battery thats not in use... it is actually universal and fits whatever battery between 1 and 3 inches in length. It works for the extended battery and your OEM battery so when youre not using one charge the other.
How the charger works ..
There are two slideable prongs that go into each battery terminal but the thing about the extended battery is that since it is made of thin strips of plastic plastic, the terminal separators are easily broken as shown in my picture below. it still seems to work fine with or without the separators though.
Its kind of complicated at first but you get the hang of it... you have to make sure you get the right prong in the right terminal or else the battery wont charge . There is a tri color led light that lets you know the status of the charger a brief breakdown.
When the LED light is OFF: There is no power going IN or OUT of the charger
When the LED light is RED and it is the wall: It means you have the prongs in the wrong place and will not charge
When the LED light is PINK and its plugged in the wall: It means that it is charging.
When the LED light is BLUE and it is plugged in the wall: That your charge is complete.
When the LED light is Blue and there is no battery present: It means that your electrical outlet is working properly and it can be charged
It doubles the width of your phone although its not that much heavier. without the case and its added mass, it will not increase the phones likeliness to shatter because the back door pops off upon impact with the floor so it disassembles upon dropping.. (First Hand experience :/ )
Overall I would recommend this purchase
Got any pics of it in the phone?
can we use the original charger instead of this?
xuanphucn said:
can we use the original charger instead of this?
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Yes you can. Its just an added bonus. And actually the size is not all that much more. The weight of the battery also isn't much more. The back cover also feels good and smooth. I haven't got to use it completely yet but it does last me through the day.
Sent from my SGH-T989