[PCB Modification] How to change smd LED to 3mm LED?
I'm currently working on a portable bluetooth speaker project. I want to modify an existing bluetooth speaker to have a bigger battery life (thanks to 4x 18650 batteries) and to be able to charge a smartphone thanks to a usb port. So I want to modify the speaker PCB to add the batteries, the phone charging circuit (the powerboost 1000 from adafruit) and integrate it in a custom made cabinet. I don't have the speaker yet, but I've joined a picture of the 5-button array on top of the speaker and a 3d sketchup design of what the speaker will look like next to 4x18650 batteries when finished (in red the area with the buttons (shown) and the leds (not shown)). The power and bluetooth buttons both seem to have leds. The speaker is powered by a 3,7v Li-ion battery. I need to change the original buttons and leds to use panel-mounted ones and I'm wondering how I can achieve that and select the right Leds in order to not damage the speaker's PCB !
Thanks in advance,