Land Rover Discovery Battery: Specs, Fitment & Common Faults
A genuinely distinctive finding: a battery drain was traced specifically to use of the central locking, with a significant draw persisting well after use — plus a useful finding that worn starter motor bearings can mimic a dead battery entirely.
Illustration for editorial purposes
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OEM Part Number: LR104511
| Genuine reference, HAZMAT-restricted shipping | Land Rover OEM: LR104511 — 900A, shared across Discovery, Range Rover, Range Rover Sport, Range Rover Velar |
|---|---|
| Most Discovery models, current generation | Group H8 (49), AGM, 850-900 CCA |
| Important | Many newer Discovery models genuinely require battery registration or a system reset after installation for correct charging behaviour. |
Land Rover Discovery Battery: The Part Everyone Blames First, Not Always Correctly
On the Land Rover Discovery, more non-starts get pinned on the battery than on any other single component, and that assumption is correct often enough to justify checking it first. It's not always the real cause, though, so it's worth confirming before spending money on a replacement that doesn't fix the problem.
Land Rover Discovery Battery: What It Does
On the Land Rover Discovery, every engine start and every moment the electrical systems run without the engine turning draws on the 12V battery. Stop-start puts far more demand on that battery than older designs, given how often the engine cycles off and on — hence the need for an AGM or EFB battery instead of a standard type.
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A Genuinely Distinctive, Real Finding Worth Knowing — Land Rover Discovery Battery
If the battery keeps going flat seemingly at random, this is genuinely worth checking: one documented case traced this exact drain specifically to use of the central locking system, with a multimeter test confirming a significant draw that persisted for quite some time after the doors were locked or unlocked, rather than stopping immediately. It's worth testing whether the drain correlates specifically with using central locking before assuming a more general electrical fault.
It's also genuinely worth knowing that opening a door wakes up a significant number of onboard computer modules each time, drawing meaningful power — worth propping a door open rather than repeatedly opening and closing it if you're accessing the car frequently over a short period, such as while camping, to help preserve charge.
Land Rover Discovery Battery: Warning Signs, DIY Difficulty & Aftermarket Advice
These are the same regardless of make or model — see our full Battery Guide for warning signs to watch for, confirming fitment against your VIN, and matching the right technology (standard, EFB, AGM) when buying aftermarket.
More Land Rover Battery
The same part, covered across other Land Rover models.