Yeah, but I think OP is not going to be driving with his high beams/flashers on with the blower running/rear defroster on, and constantly rolling the power windows up and down.
You were either doing that or had a bad battery if you couldn't make it 1.5 miles on a well charged battery.
I don't think Trident understands reserve capacity of batteries, you know, the time rating batteries are given which represents how long a battery can power a running car without the alternator, albeit with all the elec. power accessories off, but running low beam headlights. Of course, if Trident's battery was on its last legs or he was running his boom box stereo, A/C, playing with the windows, and on high beam, no wonder his didn't last long.
Really, 1.5 miles, even at a conservative 30 mph, should only take you 3-4 min. to drive. Can't see more than 10 minutes or so in stop-and-go traffic, and most batteries in decent shape can manage to run a car with low beams on for at least an hour.