[rotorwrench]

Capacitor testers are available that will test for capacity, resistance, and leakage but they can be higher dollar than most folks want to pay. The all or nothing test with a multi-meter will only tell you that it will build a charge but that's about it. It won't tell you what the capacity is or whether it leaks the charge too fast. A person can use a 9-volt battery to build a charge and then check it with a volt meter to see if it is holding a charge for a minute or so. It will show close to 9-volts on the meter to start and then it will rapidly dissipate the charge through the meter but it will tell you if it leaks or not. A person needs a higher voltage to check some caps but this rudimentary test will tell a person something anyway. Just remember, DON'T TOUCH THE LEAD while holding the cap. It will bite you good. That's the hard way to see if it will hold a charge.