★ Which one is faster between computer charging and adapter charging?
General computer discharge capacity is 500mAh, the phone adapter is mostly between 700 ~ 1000mAh, so relatively speaking, power adapter charger faster than computer. 

★ Why is the mobile phone not be charging after Connected to the power bank?
Connect the mobile phone and power bank through the USB data cable and press the switch button of the power bank to start charging the phone. At this time, the mobile power indicator lights up.
 
★ How long does it take to fully charge the power bank?
It is different according to the power bank battery capacity. it is recommended to use the output voltage of 5V-1A adapter for power bank charging, so that the charge per hour is about 1000mAh or so.
For example: Model: A100. Capacity: 10000mAh. Charging time is around 10-12 hours.
 
★ Where the power bank can be repaired?
Newmine power bank maintenance is only carried out in Beijing headquarters, maintenance address: Beijing Newmine-Tengfei Technology CO., Ltd No. 201, Building 2nd , Yard 1st , International Pioneer Park, Street 7th, Shangdi, Haidian District, Beijing, PRC
you can send the product to us or bring it by yourself, Here Newmine Customer Service Center reminds you that if you are sending the broken product to us:
1, your contact details: name, contact address, cell phone number;
2, copy of the purchasing invoice, or Newmine Teng Fei Tianmao shop, Jingdong, Amazon, Yixun, Weipinhui, Suning Tesco, printed screen-shots of purchasing details ;
3, Brief introductions of power bank failure.
 
★ How many times the fully charged power bank fully charges mobile phone?
 It is different because of the capacity of mobile phone’s battery and power bank’s battery. For example: 10000mAh capacity of power bank can charge the 2000mAh mobile phone’s battery about 4 times.
 
★ Can i bring the power bank with me on airplane?
According to the provisions of the Civil Aviation Authority of China, the limits are:
1, lithium metal battery lithium content of not more than 2g;
2, lithium-ion battery rated energy does not exceed 100wh;
3, more than 100wh but not more than 160wh, to be approved by the airline can be installed in the delivery of luggage or hand baggage equipment;
4, more than 160wh lithium battery is strictly prohibited to carry.
If you know the nominal capacity of the lithium battery (Ah) and the nominal voltage (V), then you can according to wh = v * Ah this formula to calculate the relevant value. Since the current mobile power capacity is in mAh (mAh), therefore, with Ah (ampere hours) multiplied by 1000 to get the corresponding mA (mAh) value. Since the voltage of the power bank is generally 3.7V, according to the above quantitative relationship, the nominal capacity of the mobile power source with rated energy of 100wh is about 27027 milliamperes, and the nominal capacity of the mobile power with rated energy of 160wh is about 43243mAh.
It is recommended that you contact with the airline before your travel.