Steven Brown

My brother just purchased a spektrum dx6i full range tx that runs on 4 AA cells, i.e 4.8volts we have no concerns about the minimal voltage required to power the tranny as it is 2.4 gig and much more efficient than 35mhz. The problem is that some of the older members of our local club say that a welded nicad pack would be much safer than single cells plugged in on to metal contacts. What is the real deal with these metal to metal contacts? has metalurgy changed in the last two decades? and most importantly where does the B.M.F.A  stand on this subject? views and arguments wanted...........