Ultra-Thin Back Clip Battery for iPhone and Samsung Smartphone
- Battery Type: Li-polymer Battery
- Features: Built-in Cables
- Output Interface: LIGHTNING
- Certification: CE
- Input Interface: Micro USB
- Shell Material: Plastic
- Type: Portable Power Bank
- Support Quick Charge Technology: Two-way Quick Charge
- Type: Backup Power Banks
- Capacity: 2800mAh/4225mAh
- Input: DC 5.0V/1-2A
- Output: DC 5.0V/1-2A
- Certification: CE ROHS FCC
- Battery Type: Li-Polymer
269 in stock
US$43.99 – US$57.99
Spain customer pay attention please:
If your zipcode begins with 07 / 35 / 38, Please don’t order it, we can’t send it for you!
The post office does not deliver to these places friend.
Generally, people just need to fully charge their phones once a day. OISLE’s design conception is to find a perfect balance between practicability and exquisiteness, and with the best quality.
Please NOTE :
The power bank has two regular standards of capacity, one is the battery capacity, one is the rated capacity. The 4225mah power bank, being labeled 4225mah/3.7v core capacity be converted to a rated capacity of 3000mah/5v. and the 2800mah power bank, being labeled 2800mah/3.7v core capacity be converted to rated capacity 2000mah/5v.
Why exist this difference?
The most important reason is the conversion rate. Because most of the power bank’s battery voltage is 3.7V, and power bank needs to increase the voltage to 5V when charging the mobile phone, which makes the power bank’s conversion efficiency only 3.75/5=74%, Also include generated heat when battery voltage boosting, and various of wire consumption, Electricity, and self-consumption. these points add up to account for 30%-40% of the power of the mobile power source. So the 4225mAh power bank can really be used by us only about 3000mAh.
Also, The conversion rate of the entire mobile power industry is basically in the range of 60%-70%. Please kindly note.
Please search on Google if want to know the details