Vote: 8000mah Nexus 5 extended Battery. Will you buy?

Will you buy 8000mah extended nexus 5 battery for $70-80

  • Yes, I love big battery

    Votes: 94 67.6%
  • No, I don't need it.

    Votes: 45 32.4%

  • Total voters
    139
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xingtek

New member
Sep 22, 2014
3
18
I love travel, especially remote area. I want a great phone with long lasting battery. Nexus 5 is a great phone, but battery only last less one day under moderate use.

So I made a extended battery, the capacity is about 8000mah, 3.6 times of the stock battery:

attachment.php


I am waiting for the 3D printed back cover to finish this project. According to my test, under normal use, this phone can last 3-5 days with one full charge. The charge time is about 5-6 hours. My wife love it too, I am making another one for her. She asked me why don't mass produce it and sell?

The only thing about this extended battery is the complexity. Like other recent cell phones, Neuxs 5 put NFC, wireless charging coil, antennas and vibrator on the back cover. So to make this extended battery work on Nexus 5, beside the 8000mah battery. I also designed NFC Coil, Wireless Charging Coil, WiFi Antenna, GPS Antenna, and a vibrator. All these components adds up the cost. The retail price may reach $70-80.

I started this battery as a hobby. Is here anybody like my design, and think I should mass produce it? Will you upgrade your Nexus5's battery to 3.6 times for $70-80?
 

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gravityz3r0

Senior Member
Jun 29, 2010
160
20
Looking good! 8000mAH is a lot of juice. How much bulk (in term of thickness and weight) is this going to add?
 

AliLaPointe

Senior Member
Oct 3, 2007
290
42
This is a great idea, but way too big. If you made one with a 2000mah battery I'd be all over it. Good luck!
 

sesz

Senior Member
Jun 5, 2010
94
27
ny
I would take one for that price.

Sent from my Nexus 5 using XDA Premium 4 mobile app
 

playa_

Member
Dec 20, 2013
5
1
Sheesh that's a lotta juice!

Looking forward to seeing that cover and how the phone looks after juicing :p
 

kokoon

Senior Member
Mar 9, 2010
113
12
How about adding a MicroSD slot, I'd imagine you could graft it onto the usb port somehow... I never understood why nobody does that.
 

xingtek

New member
Sep 22, 2014
3
18
How about adding a MicroSD slot, I'd imagine you could graft it onto the usb port somehow... I never understood why nobody does that.

Technically, MicroSD slot is doable with the usb port, but we may need to cut off the data wires of the usb port. I haven't tried that yet. Don't know if the SD card and USB data can be connected at the same time to the PC / Mac.

==========================================

Thanks Everybody for the supports. I am glad to see you guys are interested.

I worry most about this mod is the installation part, since Nexus 5 is not deisgned with a removable battery. Please let me know if the following installation is suitable for most of users:

1. We need to take your nexus 5 apart to take the original battery out.
attachment.php

2. Install the small battery of the extended battery and plug in the connectors.
attachment.php

3. Install the circuit board which connects the vibrator, antennas and coils.
attachment.php

4. Flip the large battery back to cover the small battery.
attachment.php

5. Connect the coils on the large battery to the circuit board.

6. Snap the extended battery cover on. (Coming Soon).

Please let me know how do you guys think about the installation part.

=============================================================

About the thickness: according to the 3D file, the thickness is about 17.5mm. I think it's okay.

The last phone with extended battery I used is HTC Sensation XE, with the extended battery is 18.5mm for only 3800mah
z710exl6.jpg


The thickness of galaxy s5 is even thicker: 21.4mm for 7500mah (With this thickness, we can make about 10000mah for nexus 5).
51nmsSCqc5L._SL1500_.jpg


The thickness of s4 is 17mm for 6400mah
61V6NGbITnL._SL1500_.jpg
 

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G

GuestK00353

Guest
The worst of Nexus 5 is the battery...
This "mod" its awesome! I cant wait to see the Nexus 5 ensambled with the 8000mAh battery!! :D

Sent from my Nexus 5 Unchained using XDA Free mobile app
 

hsa1907

Member
Jan 27, 2014
5
0
Just perfect

This would be soooooo good. The installation doesnt look hard and you are getting 8000 mAh. Ridiculously good.
Waiting to see that final image with the printed back cover.
I will buy it
 

bamtan2

Senior Member
Mar 15, 2012
663
541
This is very good work you've done. But it is a very niche product. Not many people are willing and able to disassemble their phone. Fewer of them own a Nexus 5. Fewer of those want a bigger battery and will ever learn about your product. And fewer still will swallow the price.

I encourage you to charge as much money as you need to, so you can make up for the low sales volume. Don't short-change yourself. This looks like a $100+ kit to me. Maybe you can hold a group buy, massdrop-style, where the price falls as more people commit to buy.
 
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iKlutz

Senior Member
Feb 9, 2013
721
202
London
OnePlus 7T Pro
OPPO Find X3 Pro
I'd definitely pay for it, well worth the money! but would want a bulky case to fit it lol.
Easily $100 or more wouldnt pay more than $150!
Like he said it's something only certain people would buy and be able to fit it properly, well I would!
 
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DJ-Tumor

Senior Member
Mar 25, 2012
651
157
Viersen
I would love to have that battery power but i'm afraid that thing will ruin camera performance.
An extension battery pack can't add any thickness where the camera sits, otherwise it will impact on camera
 

badboy47

Senior Member
Nov 23, 2009
2,139
1,095
If it's not bulky, I don't mind paying up to $100-$150. It would be nice if you can make the size smaller and fit it inside.
 

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  • 18
    I love travel, especially remote area. I want a great phone with long lasting battery. Nexus 5 is a great phone, but battery only last less one day under moderate use.

    So I made a extended battery, the capacity is about 8000mah, 3.6 times of the stock battery:

    attachment.php


    I am waiting for the 3D printed back cover to finish this project. According to my test, under normal use, this phone can last 3-5 days with one full charge. The charge time is about 5-6 hours. My wife love it too, I am making another one for her. She asked me why don't mass produce it and sell?

    The only thing about this extended battery is the complexity. Like other recent cell phones, Neuxs 5 put NFC, wireless charging coil, antennas and vibrator on the back cover. So to make this extended battery work on Nexus 5, beside the 8000mah battery. I also designed NFC Coil, Wireless Charging Coil, WiFi Antenna, GPS Antenna, and a vibrator. All these components adds up the cost. The retail price may reach $70-80.

    I started this battery as a hobby. Is here anybody like my design, and think I should mass produce it? Will you upgrade your Nexus5's battery to 3.6 times for $70-80?
    3
    OMG like really this would be awesome could you post some pictures of your phone with the inserted?

    And ps be sure to ship outside the US too :p
    3
    No one in their right mind would come out with a battery replacement for a phone that had to be taken apart to install it, let alone a phone battery that is not supposed to be up-gradable.

    So... You are partially right... There is ONE guy in his right mind willing to do the research and provide this in small-scale for those of us willing to pay, and as of right now 38 of us willing to pay him to do it.
    1
    this is awesome. Though i would prefer something along the lines of a 3000mah battery, just so its that much thinner