Enough Power & Portable Size to Go Around
Charge Faster, Charge Smarter
Charge 3 Devices Simultaneously
Superior Quality for Safety
Intelligent LED Light and LED Torch
5V, 3.1A (Max)
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
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 email@example.com 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.
Design & Engineering
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