The Bonitron M3628PUT allows the user to charge a capacitor or bank to a specified voltage, and then discharge the bank. The display will then show the calculated capacitance and ESR of the bank...

Bonitron M5628 Chargers maintain energy levels in batteries and ultracapacitors. Can also be used as a DC power supply. Features include adjustable current limit and charge voltage, digital display, and isolated status contacts...