Solar Power Bank 60000mAh Portable quick solar Charger External Battery Pack Built-in Cables Flashlight outdoor Hand shake Power

Solar Power Bank 60000mAh Portable quick solar Charger External Battery Pack Built-in Cables Flashlight outdoor Hand shake Power

Product name: Solar Power Bank

battery capacity:60000mAh
Material: ABS +TPU+Silicone

Product Features
1, super waterproof grade (IP66)
2, waterproof, dustproof, anti-drop, shockproof,  function
3, built-in lithium-ion polymer A batteries (explosion-proof)
4, external  high-efficiency solar panel, super conversion efficiency of up to 15%
5, composite materials, PC flame retardant materials, safe and worry-free
6, using super bright military LED double light design and SOS emergency signal light (super light)
7, dual USB interface, over-current and over-discharge short-circuit protection (device safety)
8, imported digital chip, high conversion rate, energy storage

Package Included:

1x Power Bank

1x Charger Cable

1x User Manual

NOTE:

Portable Battery charger case has two regular standard of capacity , one is the battery capacity, one is the rated capacity.

Why exist this difference?

The most important reason is the conversion rate. Because most of power bank’s battery voltage is 3.7V, and power bank needs to increase the voltage to 5V when charging the mobile phone, which making 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 5,000mAh power bank can really be used by us only about 3000-4000mAh.

Also, The conversion rate of the entire mobile power industry is basically in the range of 60%-70%. Please kindly noted.

Please search on Google if want to know the details!