DrPhone PBM3 - 20,000mAh - Powerbank – Charger – 2 USB output 1A/2.1A – 2x input Micro USB & USB C 2.1A – Display & 2x LED light

Powerbank: Are you often travelling or on the go and have no access to a power source to charge your phone or tablet? DrPhone® introduces the Mini size DrPhone PBM3. The perfect solution to safely and quickly charge tablets, smartphones and all your other devices.

USB ports & 20,000mAh: 1A & 2.1A provide you with a stable charging option and are better for your battery life.
With the 20,000 mAh 3.7V high capacity you can enjoy your device for a long time.

LED light: In addition, the PBM3 has not 1 but 2 LED lights on the side. So you can turn on the light in the evening if you are working on something or need light. Because there are two on the powerbank you have more visibility than 1 LED in the middle.

Features:
- 20,000 mAh
- 2 USB inputs
- LED light

Specification:
-Battery type: Li-polymer Battery
-Input: Type C
-Input: Micro USB
-Output interface: dual USB 1 USB 1A & 1 USB 2.1A
-Battery capacity: 20000mAh
-Charging Devices: For Tablet, Drones, Smartphone, Camera etc
-Casing material: Plastic
-Size: 84*87*28mm
-LED lamp lighting: Yes
-Output Voltage: 5V 1A / 5V 2.1A
-Input voltage: 5V / 2.1A

Explanation about mAh:
Difference between battery capacity and actual capacity
One third of the capacity is lost. The technical explanation is complicated, but the rule is simple: the actual capacity of a powerbank is about two thirds of the stated capacity. The rest disappears during the conversion of the current or is lost during charging, especially as heat. Powerbanks with a battery of 10,000 mAh or 20,000 or 30,000 mAh actually only have 6,660 mAh or 13,330 mAh or 17,500 mAh capacity.

The reason powerbanks have two thirds of the stated capacity is largely because the current must be converted. For example, the voltage of the powerbank battery is 3.7 ampere, but to charge a smartphone or tablet the powerbank must increase the voltage to 5 ampere. By increasing that voltage, only 7,400 mAh remains from 10,000 mAh, a quarter less. This applies to every powerbank, regardless of capacity or quality. During charging, about 10 percent of the remaining energy is lost. That 7,400 mAh then becomes 7,400 x 0.9 = 6,660 mAh. Much of that energy is lost as heat: that is why your smartphone often gets warm during charging.