Negative Positive
Title: My 1.5F capacitor was more like .4F
Review: It is pretty easy to measure how much energy is stored in a capacitior. Use the following equiation V=I*T/C. Since my PowerAcustik capacitor draws about .1A to run the display, all you need to do to check the capacitance is see how long it takes the voltage to drop once you disconnect it from the source of power. For example, in my case it took about 4 seconds for the voltage to drop from 13.5 down to 12.5. Rearranging the equation and solving for C....I come up with about .4F. Fortunaetly, .4F is still probably good enough to ride out one thump of the car stereo...so it propably doesn't matter at the end of the day...but I still want to get what I am paying for. F. H. (Rick) Smith
Is the review positive or negative? 