I’ve seen several different dc power sockets and would like to know which is more suitable or popular. Here are a couple I’ve found.
So it seems as if the popular ones are 5.5 x 2.1 or 2.5.
Here’s my second question. How do I find a proper charger? It’s hard to search for a charger just based on the plug size. What wattage? Should I be searching for 2-4A chargers? Where’s a good place to buy?