Parallel Battery Harness vs Parallel Switch: which one is better?

Is it better to connect two batteries using a parallel wire harness which is the direct method or a parallel switch which only allows one battery to be used at any point in time?

There is no right answer but one way is more efficient than the other. Using a parallel switch ensures that you are able to fully utilise the full power of your battery every time.

Check out our parallel switches here:
https://www.falconpev.com.sg/products...