Cap charging w/ resistor

[XHiFiX 10+ year member]

Not interested in arguing the why's and why not's of using a cap.

Just need to know if a 10W 10 Ohm resistor like this - http://www.parts-express.com/pe/showdetl.cfm?Partnumber=016-10 will work for charging/discharging a cap? I lost the bulb, but I can pull a resistor out of a passive xover with that rating.

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[k_schutte 10+ year member]

use a test light, hook the negative of the cap to the negative battery terminal or chassis ground, then connect one end of a test light to the positive of the cap and the other to the positive of the battery. The light will be bright at first, then will eventually dim to nothing, at that point it is fully charged. if you don't have a test light, you can use the resistor, but you will have to check the voltage at the cap to see if it is charged, it should read the same as the battery

 

[DBBOOM 10+ year member]

x 2 ^

 

[snoopdan 5,000+ posts]

You mean, you dont use your tongue? wuss.

 

[DBBOOM 10+ year member]

Not on caps.....................wink wink.

 

[XHiFiX 10+ year member]

Thanks. I'll be using the resistor method since I don't have a test light on hand. The cap has a digital voltage readout plus I have a DMM to check V of the battery. Just wanted to check if the value of that resistor was alright to use.