could you recommend which portable charger to buy for samsung mobile phone?

[horizonlwl]

my phone usually runs out of power quickly----could not survive for a whole day. i want to buy a suitable portable charger . it's said that inferior products are easy to explode, so i want one with good quality. 

[FiB3R]

Anker have a good reputation and great customer support, (from what I have seen, as I've never had to use it).

I own 2 of their products, which I've had for over a year, and they still work great.

Bought them from Amazon.

[Cute James]

I would also look into the cause of your rapid battery drain - perhaps with an app like Better Battery Stats?

[Nick H. Supervisor]

I've got the MiTone MITPP40 portable charger, and it's great. 7800Ma means that I can go several days without needing to find a plug.

[techbeck]

I would also look into the cause of your rapid battery drain - perhaps with an app like Better Battery Stats?

 

Agreed.  Dont toss money at a problem without first knowing what the cause is.