Range Rover EVOQUE 2018 Emergency Battery LR089861 3.7V 2600mAh
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Range Rover EVOQUE 2018 Emergency Battery LR089861 3.7V 2600mAh - is backordered and will ship as soon as it is back in stock.
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Battery Care Tips
🔹 Getting Started
Charge your new battery fully before you use it for the first time. Over the next few charge cycles, run your device down to around 20% before you recharge—this helps the battery perform its best. After that, charge whenever you need to.
🔹 Keep It Healthy
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Delivery and Shipping
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Disclaimer
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Range Rover EVOQUE 2018 Emergency Battery LR089861 3.7V 2600mAh - is backordered and will ship as soon as it is back in stock.
Voltage
3.7V
Amp
2600mAh
Range Rover EVOQUE 2018–2020 — 3.7V Li-ion Replacement Battery (LR089861)
This 3.7V, 2600mAh Li-ion cell replaces the OEM battery (LR089861) inside the Range Rover EVOQUE emergency communication and safety supply unit. It fits the 2018, 2019, and 2020 EVOQUE as well as the SPORT 2014 and additional model years sharing the same cell format. When the main vehicle electrical system goes down, this battery keeps the emergency communication hardware operational.
- EVOQUE and SPORT platform compatibility: These models share the same emergency supply module housing, connector pinout, and BMS handshake protocol — the cell slot accepts the same 66.00 × 20.80 × 18.70mm cylindrical format across all listed years.
- Bench tested on actual hardware: We ran this cell through the emergency supply module's charge acceptance and BMS recognition sequence. The management system acknowledged the battery within the expected window and cleared the pending battery-check flag without manual intervention.
- Post-installation charge cycle: After fitting this cell, plug the vehicle into mains power for at least two hours before relying on the emergency unit. The module's management firmware will not accept a runtime estimate from the battery until it completes one full charge cycle from the new cell.
Why the EVOQUE emergency unit shows a battery error immediately after installation
The emergency supply module runs a battery-check sequence the moment a new cell is detected. Until the firmware sees a complete charge cycle from the replacement cell, it flags the battery state as unverified and displays an error on the module or in the vehicle's telematics readout. This is not a fault with the cell itself — it is the management system withholding trust until charge data is established. Allow the unit to charge fully at 4.2V before the error clears. Most modules resolve the flag within two hours on charge.
Emergency supply self-test failure after battery swap
The EVOQUE emergency module performs a periodic self-test that checks whether the battery can sustain a short load pulse above a threshold voltage. A freshly installed cell that has not completed a full charge cycle will sag below the threshold during this pulse and trigger a self-test failure. The fix is straightforward: charge the unit fully, then allow the module to run one complete charge-discharge calibration cycle before the next scheduled self-test. If the test still fails after a full cycle, verify the cell voltage at the connector — it should read at or above 3.7V under no load.
Compatible Models
Replaces Part Numbers
Technical Specifications
Product Highlights
- Brand: Range Rover
- Manufacturer: CS
- Series: Standard
- Color: Black
- Product Type: Li-ion
- Battery Type: Li-ion
- Warranty: 12 Months
- Bulk Orders: sales@batteryweb.com
Frequently Asked Questions
The emergency unit in my EVOQUE shows a battery warning light straight after I fitted the new cell — is the battery faulty?
The module's management firmware runs a battery-check sequence on every new cell it detects. Until the unit completes one full charge cycle from the replacement battery, it withholds a clean status and logs a warning. Plug the vehicle in or leave the ignition in accessory mode for at least two hours. Once the cell reaches 4.2V and the charge cycle completes, the warning should clear on its own.
My EVOQUE emergency supply unit is depleting the new battery faster than expected — what's drawing it down?
The actual load during an emergency event pulls more current than the module's rated average — connected devices, radio transmission bursts, and the module's own controller all add up. If the unit is stored in a warm location (engine bay temperatures above 25°C), self-discharge accelerates further and reduces available capacity before any load is applied. Relocate the module away from direct heat sources where possible, and ensure the cell starts each standby period at a full 4.2V charge.
The EVOQUE emergency module passed installation but now fails its periodic self-test — what causes that?
The self-test fires a short load pulse and checks whether the cell holds above a minimum voltage threshold during the draw. A cell that has not completed a proper charge-discharge calibration cycle will sag below that threshold and log a failure even if it reads full at rest. Run one complete charge-discharge cycle through the module before the next scheduled test. If it still fails, measure the cell voltage at the connector pins under no load — a healthy cell should read at or above 3.7V.
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