factory price 2usb portable 20000mah 18650 battery portable smart power bank

factory price 2usb portable 20000mah 18650 battery portable smart power bank   Product Description   Product Description   Features:
High quality Li-ion battery, over 500 times life cycle 
Single USB output, can charge USB device at any time
Suitable for Iphone,for Ipad, for Samsung,MP3/MP4/digital camera/GPS/PSP/DC and so on
IC Protection
With aging test
Complies with environmental requirements   Specification:
Battery capacity: 20000mAh
Cell Type:Domestic batteries/batteries for samsung
Battery Type: A grade 18650 Lithium-ion battery 
Input: DC5V/2A
Output: DC5V/2.1A
Self-Charging time: 2-3 hours
Recharge Cycles: Charge to 100% more than 500 times
Operation temperature: -10°C ~ 40°C
Storage temperature:-20°C~50°C
Material:ABS+Rubber coated
Certificates: CE,FCC,RoHS,etc.
Product size:160.5*83*22 mm
Product weight: 455g   Accessories: 
USB cable,adaptors
English manual
Packing: 1pc/color box   Quality Assurance: 1)-High quality Li-ion battery ensures the capacity and life cycle
2)-IC protection design ensures the safety and extends the battery’s life cycle
3)-Built-in protection functions for short circuit, over voltage, over charge, over discharge
With aging test              
                                                                                                                                                                                                                                      Packaging & Shipping Packaging & Shipping                                         • 1 x  power bank •  1 x  micro usb cable with power bank •  1 x  blister with color paper for power bank Power bank samples: 3-4 working days For mass production power bank, 3.-4 weeks  Power bank Shipping: Support UPS,DHL  Express, By Air, By Sea...     Company Information Company Information                                        DIFUNG Energy is a Professional Manufacturer of Power Banks and Solar Chargers. We succeed because we are a fast, flexible and efficient manufacturing partner that our clients can rely on.Over the years, we have made substantial inverstments in design, development and manufacture. Our state-of-the-art facilities enable us to provide every manufacturing process design,tooling,molding,assembly,production and distribution. Let us take your product concept from a design into reality.   Our Services Our Services                                                     > OEM/ ODM factory(More than 50% of our products are ODM project).
> MFI member.
> BSCI (Business Social Compliance Initiative) member.
> Product liability Insurance (To ensure the benifit for every vender).
> CE RoHS FCC REACH UL product certificates.
> Strong design ability (All our products are unique and patent,
every season we will design new products for our customers). Certifications Certifications                                                   Exhibitions International Exhibitions                                    Contact us Contact US                                                       Attn: Helen Mob:+86 18688954526(wechat, whatsapp)  Email: sales6 at difung.com   Skype: sales6.difung
Tel:+86-755-2315 0020         Fax:+86-755-2315 0030
www.difung.com                    http://difung.en.alibaba.com Shenzhen DIFUNG Energy Technology Co., Ltd Address: 6F, Dayou Trade Industrial Building, Tongfuyu Industrial Area,  No.41 Yonghe Road, Heping, Fuyong Street, Baoan District, Shenzhen P.C: 518103   Welcome to visit Difung.
We are of service in 24 hours.