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Home >> Volvo >> 2008 >> S40 T-5, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 9 (Battery, Brakes, Central Electronic Module (CEM), Climate Units, Engine Management System (Ems), Diagnosis - Design And Function (644 Body)) >> Battery (All) >> Terminology >> Reserve capacity, RC

Reserve capacity, RC

WARNING: This page is about a different car, the 2004 Volvo S40, 2003 Volvo S40, 2002 Volvo S40, 2001 Volvo S40, and 2000 Volvo S40. However, it is still accessible from the selected car via links, so may be relevant.

The reserve capacity, RC, is measured in minutes and is, according to the SAE norm, the time taken to discharge a fully charged battery at 25 A to a voltage of 10.5 V at a temperature of +25°C (+77°F). The reserve capacity is the length of time the battery is able to supply necessary components with current when the generator (GEN) in the car is not functioning. Volvo batteries are marked with the RC value according to the SAE norm.

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