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Good news!
We've found batteries that fit your
Your vehicle requires both a primary battery and an auxiliary battery.
These batteries are designed to run as a backup to the starting battery and provide power to some essential equipment like engine start/stop and other systems that require power while the engine is off to put less strain on the main battery and alternator.
If you can't find or no longer have your car's owner's manual to look up the location of the batteries, you could also get your hands a little dirty and look in the car. Auxiliary batteries are not always as easy to find as your main starting battery. It could certainly be under the hood but it could also be under a seat, behind the glovebox or somewhere in the trunk.
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Showing 8 of 8
Longer Lasting
What Our Experts Are Saying
Get powerful 760 CCA starts and superior recharge performance—this AGM battery handles extreme temps and heavy electronics with long-lasting reliability.
Fits Your 2003 Land Rover Range Rover
Fits as Auxiliary Battery
What Our Experts Are Saying
Get strong 750CCA starting power for reliable performance in any weather—built for longer life and dependable everyday driving.
Fits Your 2003 Land Rover Range Rover
Fits as Auxiliary Battery
What Our Experts Are Saying
Get dependable 680 CCA starting power for everyday driving—built for reliable performance and consistent starts in any condition.
Fits Your 2003 Land Rover Range Rover
Fits as Auxiliary Battery
High Performance
What Our Experts Are Saying
Power through the first 5 seconds. Modern high electrical load vehicles put the highest demand on a battery at ignition. X2Power Ultimate AGM delivers with industry-leading Peak Cranking Amps (PCA)—the ultimate high-end force for reliable starts.
Fits Your 2003 Land Rover Range Rover
Fits as Auxiliary Battery
What Our Experts Are Saying
Get maximum performance with the Duracell Ultra Platinum AGM Group 95R car battery. With 950 CCA, this premium AGM battery delivers reliable starts, long life, and power for advanced vehicle systems.
Fits Your 2003 Land Rover Range Rover
Fits as Primary Battery
High Performance
What Our Experts Are Saying
Designed for today’s electronics-heavy vehicles, the ODYSSEY AGM 48 battery delivers exceptional starting power, fast recharge capability, and long-lasting durability you can count on for daily driving or emergency situations.
Fits Your 2003 Land Rover Range Rover
Fits as Auxiliary Battery
Value for the Money
What Our Experts Are Saying
Trust us, the high cold cranking amps make all the difference. Trust the Duracell Ultra Group 95R flooded car battery for powerful starts in every season. With 850 CCA, this battery is engineered for durability, reliability, and long-lasting performance.
Fits Your 2003 Land Rover Range Rover
Fits as Primary Battery
What Our Experts Are Saying
800CCA AGM battery—perfect for group 48 with power and long-lasting durability.
Fits Your 2003 Land Rover Range Rover
Fits as Auxiliary Battery