Anyone who knows about Power Bank?

[buggers]

I often use my phone,so that it runs out of power in half a day. so i think i need to buy a power bank.
One of my friends bought this one http://www.aliexpress.com/item/Phon...r-apple-charge-treasure-50000/1073477482.html not long ago and he said it is nice.
then i found this one http://www.amazon.com/Wisedeal-20000.../dp/B00AQQPT8G in Amazon.
the first one looks nice, the second one is cheaper but the customer reviews say it's not good enough.
So which one should i buy? Does anyone use them and give me some advise ?

 

[buggers]

No one here....

 

[Crono]

RAVPower and Anker make the better ones. I try not to cheap out on batteries too much, some of the off-brand ones can be unreliable or even dangerous.

I'm used to them being called external batteries, so the title tripped me up for a second.

http://www.amazon.com/RAVPower%C2%AE...dp/B009V5X1CE/

http://www.amazon.com/Anker-Dual-Por...keywords=anker

 

[jpeyton]

Anker has Gen2 units out now. They're about $30-$50 on Amazon. It's worth the investment.

 

[buggers]

Thank you. But not so familier with Anker, and still would like to order a white one for my girl friend, her favorite color is white.

 

[jpeyton]

http://www.amazon.com/SlimTalk-Porta...ker+power+bank

http://www.amazon.com/Anker-Dual-Por...ker+power+bank

 

[Mgz]

http://www.fasttech.com/products/14...b-218650-li-ion-battery-usb-emergency-charger (the charger)

and this (the batteries) - http://www.fasttech.com/products/1420/10001980/1141100-panasonic-ncr18650b-rechargeable-3400mah-3-7v

so 2x3400 = 7800 mAh

they also have the 3-cell version but it looks more bulky, freeshipping worldwide.

the review - http://lygte-info.dk/review/Review USB battery box 2x18650 enb UK.html , very detailed technical review, anandtech-style

I am using the ENB box with 2 batteries from my old laptop batteries(2600mAh x 2). Work great since when the cell is degraded you can just pop another cell in.

 

[Capt Caveman]

I own this one - http://www.amazon.com/gp/product/B00...C?tag=at055-20

 

[Herr Kutz]

Also check out the Limeade one--it's available in white and seems to have decent reviews.

http://www.amazon.com/External-Batte...imeade+1300mag