[lpickett]

Speaking as an electrician, it depends on what you are using this for. Both can have problems with loose connections. You need to make sure your quick connects are either soldered or crimped completely. We have been know to do both to ensure a good connection. That is what my husband has taught our students when making the battery connections. We have not had any issues that I know of (except if they use the cables to carry the battery and break wires). The terminal blocks can loosen up over time with a lot of jostling and bumping. They should be tightened every so often to ensure no loose connections. You also might use a ring connector if your connector does not have a clamp part to it.