(TrendHunter.com) The ‘SupBank' powerbank is an ultra-speedy charging solution for technology users looking to keep their essential devices powered up and ready for use at all times when out of the house.... (TrendHunter.com) The ‘SupBank' powerbank is an ultra-speedy charging solution for technology users looking to keep their essential devices powered up and ready for use at all times when out of the house....