I heard Yaobao before, but theres quite many fakes one out there. It stated 20,000mah but actually inside not 20,000mah 

how big is the power needed to charge iphone 5?

I would say this is partially true only for unwellknown brand power bank, my energizer XP4003 rated at 4000mAH and I can fully charged my iphone 5 about 3 times....3x1440mAH=4320mAH which exceeded the rated capacity of the powerbank itself....somemore energizer is the only brand which currently offering 3 years warranty...

Well in Yoobao's website I once saw that the efficiency loss can go up to 35% (I hope I read it wrongly)

Anyway I have ordered a YB Magic cube 4400mAh, should be enough for 2 charges. Didn't need that much of power. Just as emergency.

There is some thread selling 12000mAh china brand at RM70 up. My sister used it and it could charge her S3 for 4 times (she said). Sound OK for that price.. 

what may happen if i charge my phone wif a china brand power bank?

Okay thanks!
Btw which power bank would u recommend?

I am thinking to get YooBao 13000mAH powerbank.

I have gone thru their website and the online manual and it mentioned that this model needs about 15 hours to fully charge it.

My concern is if I did not charge it fully within 15 hours and most of the time to switch off the charging of the powerbank device at about maybe 5 to 7 hours, will it SPOIL the powerbank?

Yeah, I am thinking to do charging overnight but it will be only about up to 8 hours. Cannot afford to leave it for 15 hours when need to go out.

Are you using YooBao 13000mAh? If yes, how many time can charge the device  before it needs to be charge again?

Can charge iphone 5 and ipad 2 directly using iphone or ipad cable, right?

Been using Yoobao 7800 mah for few months now. Capable of charging my iPhone 4S up to 5 times. Impressive.

Still can't decide on yoobao on eneloop.

Can't resist yoobao for it's price but at the same time unable to decide on which model to choose from. High mAh but big size, and have to get a small one for gf as a gift.

As for eneloop, it's more reliable but price is high vs capacity factor.

Anyone can give me some suggestion?

got myself power bank...gasoline brand...12k mah...
bought yesterday today cant use liao....
i call the shop for warranty....
a bit regret now...rm90 fly...hopefully will get a replacement tomoro...

Using MiPow Power Tube. 2600 mAh. So far no issues. Charges iPad Mini too.

Few more picts: LINK

i have yoobao too...20K mAh...better check first...this site may help u..i guest ... hehehe... 

Luqmanmaat.com

Anyone knows yaobao price for different capacity? I asked my friend 8800mah for rm130 worth ?