I was thinking about adding some fog and driving lights to my fj60. It has a stock toyo 55amp (?) alternator.Two 150 watt lights / 12 volts = 25 ampsIts always dangerous when I do math. Is this an accurate reflection of the load? Since darn volt meter bounces now how will this load affect my system? Will the stock alt handle it or will the battery be drained down? Advice? opinions?