large capacity 20000mah portable power bank with Dual USB port

large capacity 20000mah portable power bank with Dual USB port

Product Specifications:

Features:

Safety: There is mulriple circuit protection sysytem, can avoid over charge, over discharging, short circuit, etc. 
Popular: Fashional design, nice appearance, elegant , colorful, easy to carry and use, 
High capacity: It will be able to fully charge your smart phone many times. 
High quality.  All our products would be strictly tested before the dilivery! 
Convenient: Charge your mobile phone anywhere, anytime.

How to USE:

1) Use USB DC Cable and Micro USB connector to charge power bank, Charging from adapter's USB or computer's USB.?
2) Connect your digital products to the power bank with USB connect cable and proper adapter connector.? 
3) battery status:    
Press the switch button, the blue led indictor will be on, 1 led on is low battery status, 2 LEDs on is 50% capacity, 3 leds on is 75% capacity, when 4 leds on is full, then LED will auto turned off after about 15 seconds.

Attention:

Please charge the power bank once every 3-month at least when it has not been used for a long time.
Do not attempt to dismantle the power bank unit.
Do not clean products by chemicals, soaps or detergents.
Turn off the powe when not in use to avoid continuous powe depletion.
Keep products in dry place and away from the damp and the heat.
Keep out of the reach of children.

Packing Solution:

Delivery Details:

1. By express: DHL, FEDEX, EMS, UPS, TNT
2. By Air Cargo
3. By Sea 

Lead Time: 3-7 days
Sample is within 3 working days; mass production is within 7 working days for normal quantity order.

Payment Details:

Payment Terms: Telegraphic Transfer(T/T), Western Union
Minimum order: 100pcs

Country of Origin : China (Mainland)
FOB Port : Shenzhen