2013–2021 Land Rover Range Rover
By Ray Delgado ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
Save $175 by doing it yourself! Shop cost: $315
Quick answer: Battery Replacement on a 2013–2021 Land Rover Range Rover is rated Moderate and takes about 30–45 minutes. You'll need 4 tools for this job, and parts cost about $140. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| Correct group-size battery | — | $140.00 | |
| Terminal cleaner Optional | — | $8.00 | |
| Terminal protectant Optional | — | $7.00 |
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Follow these steps carefully
Per the owner's manual you then remove two bolts, lift the left side of the compressor mounting plate to vertical, and take off the insulation panel — only then are the terminals accessible.
Undo the negative clamp nut and lift the cable and clamp clear of the terminal. Then undo the positive clamp nut and lift that cable clear. Keep both cable ends well away from the posts and from each other while you work in the confined well.
Pull the breather/vent pipe off its fitting — the L405 battery is vented to the outside of the vehicle and the pipe must come off before the battery moves. Unbolt the hold-down bracket securing the battery. Note the routing of the vent pipe and any wiring clipped nearby so everything goes back exactly as it was.
Set it upright on the ground, never tilted. Brush the battery well clean and check the insulation panel for damage before the new battery goes in.
Twenty years in the bay taught me: Set it upright on the ground, never tilted. I check twice on these.
Lower the new battery into the well in the same orientation, reconnect the breather pipe to its vent port, and reinstall the hold-down bracket snugly. Connect the positive cable first and tighten, then the negative last.
Start the Range Rover and confirm strong cranking with no battery warnings. Cycle the air suspension, tailgate, and windows — these are heavy electrical loads that quickly reveal a weak connection. Recycle the old battery properly.
The L405 runs a battery monitoring system that should be recalibrated with a diagnostic tool after a battery swap — check the owner's manual for your model year's requirement than assuming it self-learns.
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
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