# Service life of a battery

> Average lifespan by technology: SLI 3-5 years, EFB 5-7 years, AGM 6-8 years. Warm climates cut 1-2 years.

**Categoría**: Commercial
**URL canónica**: https://baterias.com/gb/battery-glossary/service-life
**Idioma**: en-GB

## Definition

The service life of an automotive battery depends on three factors: **technology, conditions of use, and climate**. Reasonable average: **conventional lead-acid SLI 3-5 years**, **EFB 5-7 years**, **AGM 6-8 years**, **GEL deep cycle 7-10 years**, **LFP lithium 10-15 years**. In warm climates (south of Spain, Italy, Portugal) subtract 1-2 years — heat accelerates internal corrosion. In very cold climates (regularly below -10°C) the battery suffers from cold-start difficulty but lasts the same or longer. Other factors that **reduce life**: repeated short trips (no full charge), high parasitic loads (alarm, GPS, keyless entry), starting with corroded terminals (poor recharge). Factors that **extend life**: regular long trips, trickle charger during inactive periods, climate-controlled battery placement (some premium brands fit the battery in the interior of the cabin precisely for this reason). End-of-life symptoms: slow cold cranking, lights flickering on starting, Start-Stop disabled, battery hot to the touch, swollen case.

## See also

- [SOH (State of Health)](https://baterias.com/gb/battery-glossary/soh)
- [Sulphation](https://baterias.com/gb/battery-glossary/sulphation)
- [Smart charger](https://baterias.com/gb/battery-glossary/smart-charger)

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