I'm building an arc lighter to learn more about electronics and I'm not certain how to calculate what I need given the components I have. Do I go off the rating for the battery or the combination of battery and parts?
I want to buy the correct on/off switch. So far I have an 18650 battery 3.7v 3000mah, a charging board 5v 1A, a momentary push button switch 3A 120VAC, a high voltage transformer kit and a rubberized altoids case. I've put the links below if you're interested.
Any help with how I can calculate the requirements for an on/off switch would be great. If you see something I might be doing wrong off the bat I'd also appreciate the info.
https://www.ebay.com/itm/171933254204 5V 1A Micro USB 18650 Lithium Battery Charging Board Charger Module+ Protection
https://www.ebay.com/itm/222083901779 DIY kit DC High voltage Generator Inverter Electric Ignitor for 18650 Battery