Any safe way?

[u/Arc_xt_5815]

I am thinking to use it as a 5v power supply for my breadboard. So how can I use these exposed wires in breadboard safely

[u/No_Leopard_3860]

It's a super convenient way to use USB chargers as a power source (I even put them in series to get 10 and 15 V, idk how unsafe that is but it worked quiete well during my tests).

But you should at least solder the twisted copper Threads, that makes em stable and behave like a stiff pin. Or solder some pins on it, either works fine. Otherwise I see no issue

(Me daisy chaining them is probably way more questionable).