I have a bought a battery charger that I will connect to a 110 volt supply.
The charger is from the USA and has a plug that will be cut off and a new compatible 110 volt site plug fitted.
The power lead is a twin wire and the wire polarity is identified by a series of raised lines which run the whole length. This is for identifying either positive or negative. I need to know which one is which.
To help further the raised wire enters the existing plug on the side that has the larger of the two pins.
If I haven't explained this well enough please ask me whatever other info you need.
Thanks
fred