Product details of Pineng PN999 20，000mAh Power Bank (Gold)

Small and lightweight.Portable， able to charge your devices anytime at anywhere.With led light indicator，showing the percentage of power remained.LED Flashlight function，which could be helpful in the dark.Adopt high-stable switch power to control circuit and intelligent single-chip power management scheme.High power conversion efficiency: the power conversion is as high as 90% or above， much higher than other similar products.Suitable for most smart phone and devices protection IC to prevent over charging， over discharging and short circuit.

Specification：1. Input: DC 5V 1A2. Output: 5V 1A，5V 2.1A ≥59wh3. Built-in battery capacities: 3.7V/20000mAh 74wh4. Battery Type: Lithium Battery5. Charge retention: >5000hrs6. Cycle life of charging: 500 times (1 time = from 0% to 100%)7. Net Weight: 445g8. Size: 162.5*79.6*22mm