I've noticed my 89 4.0 XJ's "Battery" gauge dips off center the more I turn on accessory's like lights, wipers and blower. It's still well away form the lower hash-mark but below center. Should it show electrical draw or is my battery or alt. (Or both.) starting to crap out? Having a gauge with just an outline of a battery has me wondering just exactly it's telling me. :dunno: