In general, an VOLTME power bank can charge your device just as fast as any standard wall outlet. Speeds vary depending on how many devices you have charging at once and what kind of devices you are charging.

All VOLTME power batteries products will fully recharge within 2-4 hours, depending on the product. We pride ourselves on having both high-powered output and input. All of our power banks also offer pass-through capabilities, allowing them to charge other devices while being recharged themselves.

mAh and Wh are both terms that describe the capacity of a battery. mAh, or milliamp-hour, does not account for battery voltage, so a Wh, or watt-hour, is generally more reliable as a metric. (mWh=mAh x volts). For Wh, a higher number always means a device has more capacity, but with mAh, it might not be that simple.

Yes , it able to charge your MacBook Pro but the charging speed is very slow as we still recommend you to purchase Revo 65 instead. 

Yes, All VOLTME USB Charger supports dual voltage. 

VOLTME Revo 65 USB-C GaN Charger support several charging protocol that is including PD3.0, QC3.0 and PPS

There is no difference, so long as both power source provides and meets the required power specification of the corresponding chargers 

Most of the Revo GaN Charger support PPS charging Protocol. Please refer to product user maunal for details.  

Hi Sirs, Using a lesser output charger may provide issued with your laptop if it requires higher output. We recommend you to choose Revo 100 instead. 

When the four LED lights of the VOLTME power bank are lit, it means that it is 75% to 100% charged.