It’s easy to make plans with other people in PA based on beer! There’s the Susquehanna Ale Trail connecting 15 breweries and brewpubs and the Lehigh Valley Ale Trail with bars and distilleries, as well as the Central PA Tasting Trail that includes a dozen breweries for those looking for more cider and wine to go along with the pilsner. Choose the path, a designated driver, the cooler, and the only thing that can go wrong is the car.

And cars do go wrong on these trips, usually in the least convenient spot: a taproom parking lot in a small town on a Sunday afternoon, with the nearest open shop 40 minutes away. Most of those breakdowns trace back to the electrical system, and most of them give warning signs a week or two earlier. A quick pre-trip look and an auto electrical repair visit if something seems off beats waiting for a jump start while the growlers warm up in the trunk.

Below is what tends to fail, how to spot it before you leave, and what to do if the car won’t start halfway through the trail.

Why Brewery Road Trips Are Hard on a Car’s Electrical System

A typical ale trail day looks gentle on paper. You drive 20 minutes, park for an hour and a half, drive 15 minutes, park again. For the electrical system, that pattern is rough. Every start pulls a large burst of current from the battery, and short drives don’t give the alternator enough time to fully recharge it. Six or seven starts in an afternoon, with the phone charging, the heated seats on and the headlights running in the late-afternoon dark, can drain a tired battery faster than the alternator can refill it.

Fall and winter trips add cold to the equation. AAA has reported that a battery loses about 35 percent of its strength at 32 degrees and roughly 60 percent at zero. A battery that started your car fine in September may struggle in December after sitting in an unheated lot while the group works through a flight of stouts.

Throw in what people add to their cars for a road trip: dash cams, phone holders and phone chargers, and a portable cooler which operates on 12-volt current. Several of them continue to pull in after the engine has stopped running, and a vehicle left with a cooler on for 2 hours will return with insufficient power to crank.

Newer cars bring a twist of their own, especially as technology advances and traffic conditions on roads brewing with congestion put extra demands on vehicle systems. Many of today’s models automatically turn off the engine when traffic comes to a halt and start it back up once the brake is released, and these start/stop systems are often powered by an absorbent glass mat battery or an advanced flooded battery designed for repeated start-ups. Replacing it with a less expensive ‘standard’ battery may result in the loss of the start-stop function or reduce the battery lifespan. Some cars require the replacement to be sent to the vehicle’s computer for it to acid-wash the charging system as well. This is only possible at a shop that has the right scan tool.

Warning Signs to Watch For Before You Leave

Electrical problems rarely appear out of nowhere. The car usually drops hints, and the trick is to catch them a week before the trip.

• The engine cranks slowly or makes a single click when you turn the key
• Headlights or dashboard lights dim at idle and brighten when you rev
• A battery-shaped warning light flickers or stays on
• Power windows move slower than usual
• The radio, clock, or other settings reset after the car sits
• You smell something like burning rubber or hot plastic near the engine
• The battery is three or more years old and hasn’t been tested recently

Any one of these issues is reason enough to get the system tested before a long drive, especially when planning a trip to a new location where reliable transportation matters. AAA offers free battery checks to members and non-members alike, and a repair shop can test the battery, alternator, and starter together in a short visit to help prevent unexpected breakdowns.

Battery, Alternator or Starter? Telling Them Apart

People often replace a battery when the real problem is the alternator, then end up stranded again a week later. The three main parts work as a team: the battery provides the burst of power to start the engine, the starter motor uses that power to crank it, and the alternator recharges the battery and runs the electronics while you drive. When one fails, the symptoms can look alike.

That last row is the cheapest fix on the list and one of the most common. White or green crust on the battery terminals can block current even when the battery itself is healthy.

If the Car Won’t Start at a Taproom

It happens more often than people expect. The group walks out after the last pour, the designated driver turns the key, and the dashboard flickers and goes dark. A few steps help.

First, turn off every accessory: lights, radio, climate control, chargers. Wait a minute and try again, since sometimes a weak battery has just enough left for one more crank. If you hear rapid clicking, the battery is too low. A single click with bright dashboard lights points more toward the starter.

Jump-starting a modern car takes some care. AAA has warned that connecting cables in the wrong order can damage a vehicle’s computer, and it recommends a portable jump pack over traditional cables for that reason. If you don’t carry one, check whether your car insurance or a roadside service plan includes jump-starts before you flag down a stranger with cables.

Once the car is running, drive it for at least 20 to 30 minutes without stopping, and skip the last brewery on the list. A battery that needed a jump will probably need another one after the next shutdown. Get the system tested within the next few days, because a dead battery after a jump is often a symptom of a deeper charging problem.

What surprised me the first time I dealt with this: taproom staff in small towns have seen it before. Ask the bartender. They often know which local garage is open late or which regular has a jump pack in the truck.

A Pre-Trail Checklist Worth Ten Minutes

The best time to deal with potential car troubles is the week before your trip, right in your own driveway. Pop the hood and inspect the battery. Most batteries will have a date stamped on their label, and anything older than 3 years should be tested. Test for corrosion at the terminals and ensure that the cables do not shake if you give a push on the cable. Checking on these things now can save you from any unwanted breakdowns and maintain your weekend schedule.

When starting the car, make sure the lights are on and monitor them closely, even if they suddenly drop while the cranking is going. Next, leave it running and listen for evidence of a squealing noise from the front of the engine where a belt might be slipping and failing to get the alternator to turn at the correct speed.

Indoors, remove any unnecessary electrical gadgets. A mystery drain is usually caused by “cooler plugs” and dash cams. Before heading out on a trip, report any car quirks to a technician, such as fidgety gauges or hesitant windows. Cold weather and short drives are all factors that tend to make electrical faults worse, and these are all part of an ale trail.

The Designated Driver’s Real Job

Pennsylvania’s own tourism office asks beer travelers to designate a driver, and the person who volunteers for that job carries more than the car keys. They’re the one who notices the battery light, decides whether to risk one more stop, and calls for help if the car won’t start in a dark lot an hour from home.

So give the designated driver a little backup. Toss a portable jump pack and a phone charging bank in the trunk, save a roadside assistance number in your contacts, and make sure the car has passed a basic electrical check before the weekend. Addressing any necessary electrical repairs ahead of time can help prevent unexpected delays during your trip. The beer will still be there at the last stop on the trail, and getting everyone home on time matters more than squeezing in a seventh taproom.