Scuderia Car Parts supplies genuine McLaren batteries sourced directly from OEM manufacturers. The 12-volt battery on a McLaren powers a demanding electrical load — including the electrohydraulic door opening mechanism, Proactive Chassis Control II hydraulic pump (on equipped models), active aerodynamics, keyless entry, and the full suite of infotainment and driver assistance electronics. An inadequate or incorrectly specified battery will fail under this load profile in ways that go beyond a simple no-start: partial power loss can cause erratic behaviour from the electronic suspension, door mechanisms, or active aerodynamics mid-drive. The Artura adds a high-voltage battery system for its hybrid powertrain, which carries its own distinct specification and replacement requirements. We supply customers across more than 85 countries.
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McLaren specifies AGM (Absorbent Glass Mat) batteries on its road cars, a technology chosen for its resistance to vibration damage, deep-cycle discharge tolerance, and ability to deliver high current without the voltage sag under load that conventional flooded lead-acid batteries can exhibit. AGM batteries are better suited to the irregular usage patterns common with high-performance cars — periods of storage followed by high electrical demand events — and recover more effectively from partial discharge. On PCC II-equipped models, the hydraulic suspension pump draws significant current when managing large roll inputs, and the battery must maintain adequate voltage under these transient loads to prevent the system from logging faults. The Artura's 12V system interacts with the hybrid architecture as the primary control voltage source, and its specification must be compatible with the BMS communication protocol to avoid triggering high-voltage system faults.
McLaren batteries should be maintained with a quality trickle charger whenever the vehicle is stored for more than two weeks — deep discharge on an AGM battery causes sulphation that permanently reduces capacity and cannot be recovered through normal charging. Check terminal condition for corrosion and ensure terminal clamps are torqued to specification, as vibration can loosen them over time. Battery voltage should be measured across the terminals with the ignition off — a healthy AGM battery in good condition will read 12.7 volts or above at rest. Voltage below 12.4 volts at rest indicates a battery that should be load-tested before committing to long-distance use. On the Artura, the high-voltage battery requires specialist handling and should only be serviced by technicians qualified to work on hybrid systems, following McLaren's published HV safety procedures.
Genuine McLaren batteries are specified to the cold cranking amps, capacity, AGM construction standard, and physical dimensions that the vehicle's electrical system was designed around. A battery with insufficient CCA or capacity that drops voltage under load will cause the PCC II hydraulic pump, active aerodynamics, and door mechanisms to behave erratically, generating fault codes that persist until the underlying power supply issue is corrected. For the Artura, the 12V battery must also meet the communication compatibility requirements of the hybrid battery management system — an incompatible unit can generate spurious HV system warnings and limit hybrid function. Scuderia Car Parts sources genuine McLaren OEM batteries through established manufacturer relationships, ensuring the correct specification for your model's electrical architecture and usage demands.
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