I am running a Humber RIB with an 85hp Yamaha Outboard and I want to move the battery approximately 1.5 metres cable length from its existing point. (In the seat box rather than the front console as its a real tight fit). I purchased some 16mm 200A battery cable which I was going to extend it with by use of an insulated connection at the existing terminals. The existing battery cable looks to be slightly larger on comparison. Will my new cable be up to the job?