You can test the Capacitor while the battery is charging.
Remove the console and remove the 2 wires that are connected to the Capacitor.
Next, use a short screwdriver and touch both posts at the same time, you will see a fairly strong blue spark 9f the Capacitor is good.
No spark means it's bad.
This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.