The 2014 Audi A5 uses a 12-volt starter battery, typically around 70–80 Ah. Models with start-stop technology usually employ an AGM (absorbent glass mat) battery with higher cold-cranking amps. Exact size varies by trim and market, so check the battery label or VIN-specific specifications to confirm.
Battery type and capacity
The A5 relies on a 12-volt lead-acid battery to power the vehicle’s electronics and start the engine. In most configurations, the battery capacity falls within the 70–90 Ah range, with cold-cranking amps typically in the 650–800 A range. If the car is equipped with a start-stop system, Audi commonly uses an AGM battery to handle repeated cycling and higher electrical demand.
Start-stop systems and AGM batteries
Start-stop operation places greater demand on the 12-volt battery. AGM batteries are better suited to frequent cycling, faster recharge, and improved durability under stop-start conditions. If your 2014 A5 has start-stop, the original equipment is more likely to be an AGM unit in the upper end of the Ah/CCA range.
Identifying the exact size for your vehicle
To determine the precise battery size for your specific car, use these steps:
- Inspect the battery label for group size (such as H7 or 94R), capacity (Ah), and CCA.
- Consult the owner's manual or a service manual for the battery specification for your trim and engine.
- Use Audi’s official parts lookup or contact a dealer with your VIN to pull the exact replacement battery and part number.
In practice, many 2014 A5 replacements fall in the 80 Ah range with high 700–800 CCA for AGM-equipped trims, but exact sizing varies by engine, trim, and region. Always verify with the label or dealer documentation.
Summary
The 2014 Audi A5 commonly uses a 12-volt battery, with about 70–80 Ah capacity in standard configurations and an AGM battery in models with start-stop. Exact group size and CCA depend on trim and market, so verify with the battery label, the owner's manual, or Audi’s VIN-based parts catalog to ensure you obtain the correct replacement.