Mars power bank 3000 mAh review

Recently bought a external battery charger for my Samsung mobile phone called Mars Power Bank 3000 mAh.

Since the instruction or manual behind the box written in Chinese, i will share this in English so that more people can understand how it's work.

The description is rather brief as below:

• Please read the instruction behind this box before using this.
• This product suitable to use in most smart phone and digital camera.
• Please recharge this product at least once if didn't use for a period of 3 months.
• During the charging process, you can feel slight heat which is normal.  
• Please make sure this product in dry condition. Please do not clear this product with chemical cleanser.

For: Fix for various mobile and devices

Capacity: 3000 mAh

Input: DC 5V -1000mAh (Max)

Output: DC 5V -1000 mAh (Max)

Mentioned in the box, this device support most of the mobile phone brand like Apple, Samsung, Nokia and etc. 

It's very flexible where user can change the adapter to suit the different needs.

Adapters that come with this external battery

For my case, i recharge this external charger with my USB adapter. 

How we know that it's fully charged? There is a LED light indicator. When you start to charge the power bank, the LED is in Red color. Once fully charged, it will turn to Blue. It will takes about 2-3 hours.

Once it's fully charge, you can use it to charge you smart phone and it should work like charm. It will takes 2-3 hours to get the handphone battery fully charge. I'm using Samsung Galaxy S2

Is it safe? Mentioned in the Box, it's certified by CE. I guess it's safe.