I have one of those power bricks claiming to be 50,000mah. I knew it would be a fake rating before buying from alibaba but at the price I was willing to take my chances.

I've has it for 6 months now and use it very frequent, seems to be going strong. It takes a full day sometimes longer to fully charge. It looks like that white one with the sandbags but black.

It can charge my smartphone S3 and S4 from empty to 100% around 4 times each phone, and can charge my iPad 2 from empty to full 1.5x. Charges my nexus 7 twice. So in theory is good for phones better than tablets.

It is a brick and im happy I got it for like us$20.

Im after a new smaller one to use alternately. Yoobau is too expensive unless it can truely deliver similar results to my brick otherwise better? Plus I don't know which store to trust is lowyat which sells genuine.


I don't know if mine has sand in it, I doubt though.