Pyle 5.0 Farad Digital Power Capacitor - High-Performance Car Audio Accessory with Blue Digital Display, Voltage Readout, Over Voltage Protection, Mounting Hardware, DC 12-24V - PLCAPE50

It will beep until it's fully charged. This is normal. For some reason this isn't clear in the instructions. It'll charge for around 10 mins. Than remove the resistor from the positive cable and hook the cable directly to it. Ur set from there. The reason u charge it slowly is to keep from shocking the electrical system. So just do it. If this helps hit that this helped me!

Perfect transactionAs described shipped wellWorks wicked pissa

I purchased the PLCAPE50 for my car audio system. This item works very well and looks good too. The mounting hardware is included and easy to install. The blue LED display is an attractive addition. The device turns on and off automatically based upon voltage sensing circuity. This cap provides the extra boost and filtering needed for a nice car audio system. I am very pleased and would buy another should I need one. I highly recommend this quality product. Thank you PYLE and Amazon.

Capacitor works as advertised, but the mounts are flimsy and fit poorly. I had to use my own screws, the ones provided were too short to hold the two pieces together.

It works but other than the annoying digital display staying on and lighting up the whole inside of your car at night and the cheaply made plastic mounts that strip out to easy, it gets the job done for now. Time will tell on how well it lasts. Not really sure I'm liking it because of it not shutting off and at night it's bright enough to be seen through 2.5% window tint with no problem. Draws unwanted attention to your vehicle and let's the wrong people know what you have in the back seat. I'm probably going to put electrical tape over the display to keep the light off so no one wants to break into my car at night because they can see exactly what is there when no one is around. Also make sure it is charged correctly before installing. Mine took about 10 to 15 minutes to complete the charging process.Update: Less than a week in use. The bass seems to hit maybe a little bit harder BUT my amp now cuts out once in a while which it NEVER done before. And the headlights still dim on hard hitting bass. I had to put electrical tape over the display because at night it is entirely to bright inside the car. Also the capacitor does not shut off. So far it hasn't drained my battery but I make sure I carry a jump pack with me just in case! I'm probably gonna replace it with something different real soon. Overall I'm not impressed with it. I honestly don't think it's worth the money for what you get.UPDATE...I've unhooked the thing! Drains car battery after not starting the car for a week in the cold. Disconnected it and no more problems with the car starting even at below zero Temps. The thing never shuts off and is constantly draining power from battery. Not very happy about the outcome. I personally wouldn't buy it again.

Finally got around to using this and worked so well I’m going to buy 2 more for my other vehicles

Great peace of machinery electronics always good to have a capacitor can’t go wrong

Needs initital charge, and appears to sleep, but goes live and monitors voltage above and beyond after that. I ran the capacitor charge / discharge process four times before learning to let it charge to 12.0 volts, and wait for the led display to go out, then remove resistor. If it did not charge up enough before display goes out, de-energize to about 10-volts, and redo and hit 12 volts (I applied a load to bring led back on). Then, stop: Go outside, unplug the ground back at the battery, go back and actually connect the + wire directly to the capacitor. And finally add in the positive load also. Then quickly rewire the battery ground back outside to keep highest voltage while completing the wiring process. You lose a few tenths of volts the longer you take. Also, ground and fuse everything first before charging and connecting capacitor.