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Batteries & Chargers
By OE Match
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
This OE Match battery ground strap is a replacement earth strap used to connect the battery negative terminal to the vehicle body or chassis ground point. It is designed to match the original-style function and fitment for Porsche 924, 944, and 911 Turbo Flatnose models where this part number is specified.
Fits:
Porsche 924 - 1976 to 1985
Porsche 944 2.5ltr - 1982 to 1985
Porsche 911 turbo "Flatnose" - 1987 to 1989
Diagram ref no 5 (for 911) / 10 (for 924 / 944)
This battery ground strap fits at the battery area, connecting the negative battery terminal to the body or chassis earth point. Depending on the model, it may be located in the front battery compartment or battery mounting area as part of the main vehicle grounding system.
The battery ground strap provides the main electrical return path from the vehicle body back to the battery. A strong and clean ground connection is essential for reliable starting, charging, lighting, instruments, and general electrical system performance.
Functions
• Connects the battery negative terminal to the body or chassis ground point
• Completes the electrical circuit for the starting and charging systems
• Helps provide stable voltage to electrical components
• Supports reliable starter motor operation
• Helps prevent intermittent electrical faults caused by poor grounding
• Restores the correct battery earth connection during repair or restoration
• OE Match replacement for worn, corroded, or damaged original ground strap
Battery ground straps can corrode, fray, loosen, or develop high resistance over time. A weak earth connection can cause slow cranking, starting problems, dim or flickering lights, charging issues, erratic gauges, or intermittent electrical faults. Replacing the ground strap helps restore a secure electrical connection and improves overall reliability.
When to replace
• The original ground strap is corroded, frayed, cracked, or damaged
• The battery negative connection is loose or heavily oxidised
• The car has slow cranking or intermittent starting issues
• Lights, instruments, or electrical systems behave erratically
• Charging or voltage-related faults are present
• The ground strap becomes hot under electrical load
• The vehicle is undergoing battery, wiring, or restoration work
• The original strap is missing or no longer provides a reliable ground
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
477971221
The product you are viewing cross references to these numbers
- Porsche 924 2.0L 1976-79
- Porsche 924 2.0L 1980-85
- Porsche 924 Turbo 2.0L 1979-81
- Porsche 924 Turbo 2.0L 1982-84
- Porsche 924 Carrera GT 2.0L 1981
- Porsche 924 Carrera GTS 2.0L 1982
- Porsche 924S 2.5L 1986-87
- Porsche 924S 2.5L 1988
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
- Porsche 914 (1970-1976)
Fits:
Porsche 914 1970-76
Porsche 968 1992-95
Porsche 924 1977-82
Porsche 924 1987-88
Porsche 944 1983-91
Diagram ref no 2
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91461123310
The product you are viewing cross references to these numbers
OEMatch Batteries & Chargers — Fit, Function, Confidence
OEMatch Batteries & Chargers for Porsche models provide power management and charging solutions tailored to modern Porsche electrical systems. Choose batteries and smart chargers matched to battery chemistry and usage patterns to maintain starting reliability, protect onboard electronics and reduce the risk of unexpected discharge during storage.
Available Types- AGM batteries for vehicles fitted with absorbent glass mat technology
- Lithium batteries suitable for compatible Porsche models where specified
- Conventional lead-acid batteries for classic and entry-level applications
- Smart chargers and maintainers with multi-stage charging profiles
OEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original batteries & chargers. OE (Original Equipment) refers to parts matching original specifications for the batteries & chargers and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM batteries & chargers engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Batteries store and supply electrical energy for engine starting and all onboard systems; chargers restore and maintain that energy, especially during storage. Selecting the correct battery chemistry and a compatible charger helps protect high-current start cycles, sensitive electronics and the vehicle’s charging system.
Benefits Include- Improved starting reliability and stable voltage under load
- Protection against deep discharge and parasitic electrical faults
- Maintained state of charge during long-term storage with smart charging
- Age-related capacity loss reducing available charge
- Parasitic drain from modern electronics and aftermarket devices
- Temperature extremes and inadequate charging accelerating deterioration
- Cost-effective alternatives engineered to original-spec dimensions and tolerances
- Selection across battery chemistries and charging options for Porsche models
- Catalogued part numbers and cross-references to aid correct identification and fitment
