A low battery can be caused for many reasons, leaving your headlights on, not driving a vehicle for months at a time among others. If your battery is losing its charge and not holding a charge,(you would know because your car won't start) then it would be time to get a new battery. (Make sure you keep your battery terminals clean.)
Also if the battery has damage to its casing you should get a new battery. A car battery should last from 3-7 years. Check the warranty on the battery if it is still under warranty you could have it replaced at no cost.
〉 Answered on May 24th, 2011 by Colleen McGee, Driving Instructor at Americas Driving School
Any auto parts supplier can test your battery and tell you how many amps your battery is putting out and if it will need to be replaced. Most places will test it free of charge and show you the tester read out.
〉 Answered on May 24th, 2011 by Jamey Wozniak, Owner and CEO at Joe's Hitch, Trailer & Truck Accessories
Adrienne, thank you for your question! When we test a battery, our ASE certified technician will print out a detailed report along with the likely point of failure or temperature it could fail. If the shop can’t give you a report verifying why they are recommending it, I would get a second opinion. Here in Minnesota, a good battery is crucial before the outside temperature dips below freezing in late fall and into winter. A battery that is weak may seem to start just fine in warm weather and the first time it drops below freezing could result in a no start. Many shops will offer a FREE battery test to give you piece of mind. Great question!
Batteries should be replaced about every 3 years. We have a hand held battery tester that provides a print out of the “health” of your battery. See if your repair shop has something like this so you can see if your battery needs immediate replacement.
〉 Answered on May 24th, 2011 by Judy Curry, Co-Founder and Vice President of Marketing at Currys Auto Service
Most shops now are able to test your battery on whether it's getting close to replace (holding a charge). Remember, a battery can go bad at ANY time~usually when you have a full schedule! NO Doubt! Their is NO such thing as a "Lifetime battery" in Phoenix or Extreme weather states. The heat destroys, therefore you need to be Pro-Active in replacing it. If the Shop says replace, I'd replace it with the Summer coming up! No fun watching it from the side of the road...ugh! You should have a test everytime you have your oil changed!
〉 Answered on May 24th, 2011 by Pat Fleischmann, Director of First Impressions at Community Tire Pros & Auto Repair