Saw quite a few discussions here about iPhone 6 cases, but battery cases have not been mentioned yet. So I searched a little and made a collection of them. Hope its helpful to some of you. Personally I like the last one.
1. ZuZo External Protective iPhone 6 Battery Case
Capacity: 3200mAh (Oct 15th) and 2500mAh (Oct 5th)
Input: 5V/800mA, Output: 5V/500mA
Dimension: N/A
Weight: N/A
Led indication lights
1 year warranty
Price: $49.95 + $4.98 shipping
http://www.amazon.com/Battery-ZuZo-...qid=1411623733&sr=1-10&keywords=iphone+6+case
The white one is the 2500 mAh version, with same price.
Pros:
1-year warranty;
4 led indicator lights
Trustworthy brand (4.7 out of 5 in Amazon)
Kickstand
Cons:
The case is plastic and looks cheap
2. Unknown Brand, iPhone 6 Black 3500mAh External Battery Case Charger
Capacity: 3500mAh (In stock)
Input: DC5V / 1.0A; Output: DC5V / 1.0A
Dimension:149.6*71*15mm
Weight: Approx.96g
Led indication lights: Yes
Built-in kickstand: Yes
Price: $15.7 + $1.99 shipping
Integrated power switch
http://www.amazon.com/3500mAh-Exter...5Z80/ref=aag_m_pw_dp?ie=UTF8&m=A3GY0PSTHXNOPF
Pros:
4 led indicator lights
Kickstand
Cannot beat the price
On/off switch button
In stock now
Cons:
Unknown brand
Boring design
3. i-BlasoniPhone 6 Battery Case
Capacity: 3200mAh (Oct 15)
Input, Output: N/A
Dimension: N/A
Weight: N/A
Led indication lights: No
Built-in kickstand: No
Price: $54.99
http://www.amazon.com/Battery-i-Bla...&qid=1411623733&sr=1-7&keywords=iphone+6+case
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Pros:
Brand is good
Neat design
Cons:
No indicator lights
The design is too neat
4. Alpatronix BX140 Ultra-Slim Protective Extended iPhone 6 Battery Charging Case
Capacity: 3100mAh (Oct 22)
Li-Polymer Battery
Input Voltage: 5.0V/1.0A; Output Voltage: 5.0±0.25V/1A
Dimensions: 0.61 inches x 2.79 inches x 6.01 inches
Weight = 5.64 ounces
LED lights
On/off switch
Multiple color choices
Price: $44.95
http://www.amazon.com/Alpatronix-BX...qid=1411623733&sr=1-14&keywords=iphone+6+case
Pros:
Brand is good
Li-po battery
Multiple color choices
LED indicator lights
Gifts (1x standard bumper, 1x accent bumper, 1x headphone adapter cable, 1x microUSB cable, 1x screen protector)
1 year warranty
On/off switch
Cons:
Poor design
5. PowerArmour Battery Case for iPhone 6
Capacity: 2500mAh (November)
Input Output : N/A
Dimensions: N/A
Weight: N/A
LED lights: Yes
On/off switch: Yes
Price: $79.99
http://www.buqutech.com/Products/iphone-6-battery-case
Pros:
LED lights indicator
On/off switch
Neat Design
Cons:
Price less competitive
Late arrival
6. Lepow® PIE iPhone6 3000mAh MFI Apple Certified Detachable External Battery
Capacity: 3000mAh (Oct)
Onput Output : 5V; Input: 5V
Output Current: 1000mAh; Input Current (Max): 1000mAh
Dimensions: 4.9 x 2.4 x 0.5 in
Weight: 4.8 oz
LED lights: Yes
On/off switch: No
Price: $59.99
http://www.lepowglobal.com/product/...-charger-backup-battery-pack-with-phone-case/
Pros:
Detachable Design (detach the battery when not using it)
Finally a different design
LED indicator lights
Certified lightning cable
Trustworthy brand on Amazon
Cons:
Late arrival
Price less competitive
1. ZuZo External Protective iPhone 6 Battery Case
Capacity: 3200mAh (Oct 15th) and 2500mAh (Oct 5th)
Input: 5V/800mA, Output: 5V/500mA
Dimension: N/A
Weight: N/A
Led indication lights
1 year warranty
Price: $49.95 + $4.98 shipping
http://www.amazon.com/Battery-ZuZo-...qid=1411623733&sr=1-10&keywords=iphone+6+case


The white one is the 2500 mAh version, with same price.
Pros:
1-year warranty;
4 led indicator lights
Trustworthy brand (4.7 out of 5 in Amazon)
Kickstand
Cons:
The case is plastic and looks cheap
2. Unknown Brand, iPhone 6 Black 3500mAh External Battery Case Charger
Capacity: 3500mAh (In stock)
Input: DC5V / 1.0A; Output: DC5V / 1.0A
Dimension:149.6*71*15mm
Weight: Approx.96g
Led indication lights: Yes
Built-in kickstand: Yes
Price: $15.7 + $1.99 shipping
Integrated power switch
http://www.amazon.com/3500mAh-Exter...5Z80/ref=aag_m_pw_dp?ie=UTF8&m=A3GY0PSTHXNOPF

Pros:
4 led indicator lights
Kickstand
Cannot beat the price
On/off switch button
In stock now
Cons:
Unknown brand
Boring design
3. i-BlasoniPhone 6 Battery Case
Capacity: 3200mAh (Oct 15)
Input, Output: N/A
Dimension: N/A
Weight: N/A
Led indication lights: No
Built-in kickstand: No
Price: $54.99
http://www.amazon.com/Battery-i-Bla...&qid=1411623733&sr=1-7&keywords=iphone+6+case

Pros:
Brand is good
Neat design
Cons:
No indicator lights
The design is too neat
4. Alpatronix BX140 Ultra-Slim Protective Extended iPhone 6 Battery Charging Case
Capacity: 3100mAh (Oct 22)
Li-Polymer Battery
Input Voltage: 5.0V/1.0A; Output Voltage: 5.0±0.25V/1A
Dimensions: 0.61 inches x 2.79 inches x 6.01 inches
Weight = 5.64 ounces
LED lights
On/off switch
Multiple color choices
Price: $44.95
http://www.amazon.com/Alpatronix-BX...qid=1411623733&sr=1-14&keywords=iphone+6+case


Pros:
Brand is good
Li-po battery
Multiple color choices
LED indicator lights
Gifts (1x standard bumper, 1x accent bumper, 1x headphone adapter cable, 1x microUSB cable, 1x screen protector)
1 year warranty
On/off switch
Cons:
Poor design
5. PowerArmour Battery Case for iPhone 6
Capacity: 2500mAh (November)
Input Output : N/A
Dimensions: N/A
Weight: N/A
LED lights: Yes
On/off switch: Yes
Price: $79.99
http://www.buqutech.com/Products/iphone-6-battery-case

Pros:
LED lights indicator
On/off switch
Neat Design
Cons:
Price less competitive
Late arrival
6. Lepow® PIE iPhone6 3000mAh MFI Apple Certified Detachable External Battery
Capacity: 3000mAh (Oct)
Onput Output : 5V; Input: 5V
Output Current: 1000mAh; Input Current (Max): 1000mAh
Dimensions: 4.9 x 2.4 x 0.5 in
Weight: 4.8 oz
LED lights: Yes
On/off switch: No
Price: $59.99
http://www.lepowglobal.com/product/...-charger-backup-battery-pack-with-phone-case/


Pros:
Detachable Design (detach the battery when not using it)
Finally a different design
LED indicator lights
Certified lightning cable
Trustworthy brand on Amazon
Cons:
Late arrival
Price less competitive
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