Between the cheapest and the most expensive battery for the same car there can be a €150 gap. Marketing? Mostly not: there are concrete technical reasons — knowing them tells you when paying more is worth it.

Real 2026 ranges

Conventional small car (45-55 Ah): €60-90 · conventional saloon/diesel: €90-140 · EFB start-stop: €110-180 · AGM start-stop: €150-260 · deep-cycle/gel: €130-400 · lithium 100 Ah: €400-900.

What makes a battery expensive

Technology (AGM has glass-fibre separators, more lead, recombination valves — double the price, double the cycles), cold-cranking amps (more CCA = more, thinner plates), who actually makes it (fewer factories than brands: Clarios makes Varta and Bosch; Exide makes Exide and Tudor) and freshness — a battery made 18 months ago and stored carelessly has lost life before first use; that's the usual marketplace "bargain" trap.

The right maths: euros per year

A €70 conventional lasting 3.5 years costs €20/year. A €180 AGM lasting 7 years, €26/year — but on a start-stop car the conventional won't reach 2 years. The correct battery for your technology always wins mid-term. Compatibility rules in the complete battery guide.

At baterias.com prices always include VAT and stock rotates for real. Search by number plate to compare only batteries that actually fit your car — the only price comparison that makes sense.