12000mAh Power Bank Dual 2.4A USB External Battery Charger 

Description

12000mAh Power Bank Dual 2.4A USB External Battery Charger 

• Capacity: 12000mAh
• Input: 5V, 2A
• USB Output: 2 x USB
• Smart Output1: 5V 2.4A (Max)
• Smart Output2: 5V 2.4A (Max)

• 1 x VINSIC 12000mAh Power Bank
• 1 x 2.0A USB Cable (iPhone cable not included)
• 1 x User Manual
• 1 x 18 Months Warranty Card

1.Does Vinsic 12000mAh power bank have the Warranty? How long?

Vinsic power bank, we are offering 18 months warranty; Warranty starts from the date of your purchase.

2.Vinsic power bank 12000mAh uses A Lithium-Polymer battery, I want to know what is difference with other power bank seller?

The battery of power bank with 2 types: 1.Lithium-Polymer 2.Lithium-Ion(18650) Lithium-Polymer Pros: Latest technology, Less warmer, Non-flammable, Non-explosive, Stable and Safe, Slightly Cons: Cost is high Lithium-Ion(18650) Pros: Easy to get “hot” or simply warmer than expected, Flammable and Explosive Cons: smaller in size Vinsic power bank 12000mah not only uses the Lithium-Polymer battery, but also chooses the best battery brand LG, with the newest LG technology, in order to make sure our customers’ 100% safety.

3.Does your Vinsic 12000mah power bank have the real capacity? Vinsic is well-known brand Power Bank Company, we declare the real capacity for all power bank we sell.

4.What the size and weight of this 12000mah Vinsic power bank? To describe it more vividly, the size just like 1/3 size of a Magazine is 91*162*12mm . The weight is about 360g.

5.What shipping method you use to ship this power bank from China? We ship this power ban by using world first class airmail-Sweden airmail, this airmail is much safe and faster than any other airmail

6.How can I charge this power bank? We have a charging cable together with power bank; connect this cable to any USB charger that can charge our power bank.

7.How many times charge for my cellphone?

Number of charges equals = (Power capacity of Power Bank* battery conversion efficiency* phone inner core conversion efficiency (80%))/ the capacity of mobile phone battery

Take for iPhone 6 for example:

capacity of Power Bank: 12000mAh power bank

conversion efficiency: 3.7V/5V

Phone inner core conversion efficiency: 80%

The capacity for iPhone 6 battery: 1810 mAh (12000mAh x 3.7/5*80%)/1810=3.9

So 12000mAh Power bank, the total Number of Charger for iPhone 4 times.