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ProVolta-21

20800mAh Portable High Capacity Power Bank With 3.1A Output

ProVolta-21

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20800mAh Portable High Capacity Power Bank With 3.1A Output

$54.99

Charge your device on-the-go with this powerful 20800mAh lithium ion power bank: proVolta-21. It features 3 ultra-fast USB charging ports to charge any USB chargeable device. proVolta-21 also includes Automatic Voltage Regulation i.e. it provides an optimum output based on the device connected. proVolta-21 is compatible with all smartphones & tablets.

Shipping

Worldwide

24 Months

Warranty

World Class

Support

Enough Power & Portable Size to Go Around

Ultra-High Capacity of 20800mAh yet portable with built-in A+ Lithium-Ion battery cells, can keep your devices running all the time.

Charge Faster, Charge Smarter

PowerIQ amp-adjustment technology intelligently identifies your device to deliver its fastest possible charge.

Charge 3 Devices Simultaneously

Fast charging via 3 USB ports (5V, 3.1A max), allowing for three devices simultaneous charging. They are compatible with almost all devices with an input of DC 5V.

Superior Quality for Safety

Top circuit protection chip to ensure complete safety. It supports overcharging, over-voltage, over current, short-circuit protection and temperature protection to protect your devices.

Intelligent LED Light and LED Torch

The four power indicators on the front show the charging status and battery level when you press the On-Off button. There is also a LED flashlight on the power bank. The lighting-up time can reach to 200 hours or more when the power bank is in full power mode. To activate the LED flashlight, double click the On-Off button.

Wide Compatibility

proVolta-21 is compatible with all the key devices that include iPhones, Android smartphones, iPads, tablets, and other USB-powered devices.

Battery Capacity

20800mAh
Battery Type

Lithium-Ion
Input

5V, 1.3A
Output

5V, 3.1A (Max)
Charging Time

18 Hours

Powerful Battery

proVolta-21 features a powerful 20800mAh li-Ion power bank
3 Ultra-Fast USB Ports

Charge your devices via any of the 3 ultra-fast USB charging port
Lightweight & Portable

proVolta-21 compact and easy to carry around
Automatic Voltage Regulation

proVolta-21 features Automatic Voltage Regulation i.e. it provides an optimum output based on the device connected
Charge up to Three Separate Devices

With proVolta-21, charge three devices simultaneously
Safe & Reliable

proVolta-21 features short-circuit & over-charging protection

Datasheets

User Guide

F.A.Q

When I press the power button on my power bank, nothing happens. Is the battery dead?

No, it just needs to be recharged for 3-4 hours. If the problem persists, please contact us at customerservice@promate.net for assistance and a customer service representative will reply to your inquiry in a timely fashion.

How long should it take to fully charge my portable charger?

Typically, it will take up three to four hours to fully charge a Promate portable power bank after its initial charge. Smaller power bank should take less time, and larger portable chargers or external batteries may take slightly longer. For models with USB or micro USB input port, the output current from USB wall charger or PC USB port will inference charging time too.