Battery Health Analyzer Calculator
Frequently Asked Questions
How long do car batteries typically last?
Car battery lifespan varies by type and conditions. Standard lead-acid batteries: 3-4 years. AGM batteries: 4-6 years. EFB batteries: 3-5 years. EV/hybrid lithium batteries: 8-12 years. Extreme temperatures, infrequent use, and short trips reduce lifespan by 15-30%.
What affects battery lifespan?
Battery lifespan is affected by: extreme temperatures (hot or cold reduce life 15-30%), usage patterns (infrequent use causes sulfation), short trips (insufficient charging), climate (heat is harder on batteries), electrical load (excessive accessories), and battery type (AGM lasts longer).
How do I know when to replace my battery?
Replace your battery when: it's 3-5 years old (standard batteries), you experience slow cranking or starting issues, battery voltage is below 12.4V when off, dashboard battery warning light appears, battery case is swollen or leaking, or battery test shows poor health. Test battery voltage regularly (every 6 months).
How much does battery replacement cost?
Battery replacement costs vary by vehicle: economy cars ($100-$150), mid-size vehicles ($120-$180), full-size/SUVs ($150-$250), luxury vehicles ($200-$400). AGM batteries cost $150-$300. Installation typically adds $20-$50. DIY replacement costs $100-$250 for the battery alone.
