Bull dog Tough! Rivergate Distributing Super Capacitor compared

Competitors Junk !

Hydra Super Capacitor.



Notice the set above, all of them have concrete or tar to add weight to fool the purchaser into paying a high price for a inferior product that does not even come close to its rated value. On the right is a claimed 35 farad unit that as you can see is made up of two separate capacitors and together they measured less than 2 farads.

This unit to the left is one from the 35 farad model shown above.  Note its mostly tar.  It failed in a few days of testing by charging it up and measuring its true capacitance via a discharge cycle into a known load value.  The method used to measure the true capacitance of any capacitor this large is to use the R/C Time method which renders reasonable accuracy.   All the capacitors we measured were so low as to not even come close to their rated values.  An example measurement indicated 2 farad from a similar 30 farad unit like this one.
This unit was rated 24 volts and advertised at 5 farad.  It failed and shorted out at a charging voltage of 16 volts on our slot model.  It was not in use, just connected and after a 14 hour period it was discovered to have blown and burned on the inside leaving an acrid smell in our garage where it was tested.  Good thing it was surrounded by concrete to prevent a fire....
This unit did not fail, it was simply no where near its rated value of 2 farad.  It is constructed of 10 capacitors in parallel each rated at 10,000 uF or micro-farad.  10,000 uF is the equivalent of .01 farad so 10 of them would render .1 farad.   10 x .01 = .1

At least this one used real production capacitors rated at 16 working volts.  All we can say is that this model used better parts that most of its competitors.