Fixing a broken button on a charger
 

Howdy!

I was recently gifted a Prodigy 612 Duo AC/DC charger that has a channel button that doesn't work (research has shown me that this was a common problem with this generation of chargers). The charger is in good condition, except for the Channel 1 button that just doesn't register when you push it. So I did some research online and found a Youtube video of a guy who fixes the buttons of his iMax B6AC charger. You can see the video here:


I think this might just work for my broken button and I'd like to attempt something like it. However, I have never done anything like this before, nor do I know what types of buttons to purchase to attempt this. Would anyone here have some input that might help my efforts? Do you know what type of mechanical button I'd need to buy? Also, do I need to pay attention to polarity while soldering the new switches? Advice is greatly appreciated, thanks!

Why not getting an original switch. If they are the same as in the vid they are called tactile switches

I'll take the cover off and snap a picture of the broken switch to help confirm. Would you recommend trying to unsolder and replace the broken switch, or would you do it like the guy in the video? I like his solution since it didn't involve removing the broken switch.

Since it's a switch, does the polarity matter?

I am a guy who wants to mount an original switch. And if one is acting bad it is wise to replace them all.

The switches the guy used in his vid are the most crappy ones to get, they can give a vibrating contact. If that is not damped by (most common) a capacitor then it will be very anoying.

No, switches are not polarity sensitive but they do come in several configurations. Most common is switching on, but there is also switching off, switching over (3 pin switch) and as a push-hold and moment switch.

Lucky tactile switches are for 99% only simple moment switches, switching on when pushed and fall open when letting go..