Bowland Autotech Ltd

Land Rover Range Rover 48V Mild Hybrid Battery Repair Reset Unlock Service BMS

Repair, reset and unlock service for Land Rover / Range Rover 48V mild hybrid battery BMS modules.
Suitable for batteries with low-voltage lockout, crash shutdown, BMS fault, charging fault, safe mode, or batteries that stopped working after the vehicle was left standing, generator failure, DCDC converter fault, or accident damage.

What this service is for

This service is for Land Rover and Range Rover 48V mild hybrid battery BMS repair, reset and unlock.

It is typically required when the 48V battery has gone into protection mode, crash shutdown, deep discharge lock, or will not recover after a charging system fault, faulty generator, faulty DCDC converter, long storage, or accident event.

What we do

  • Diagnose Land Rover / Range Rover 48V mild hybrid battery BMS faults
  • Reset and unlock BMS protection / shutdown conditions where possible
  • Help recover batteries locked after low voltage, crash event or charging system failure
  • Controlled 48V battery charging and recovery where required
  • Check the battery condition before return
  • Specialist service for Land Rover / Range Rover 48V mild hybrid battery systems

Common reasons for failure

  • Vehicle left standing for a long period
  • Low 12V battery causing the 48V system to shut down
  • Faulty belt starter generator / 48V generator
  • Faulty DCDC converter
  • Vehicle involved in a crash or accident
  • Charging system fault not repaired in time
  • 48V battery discharged below the safe operating limit

Before sending

Please contact us first and send:

  • Clear photo of the battery label
  • Vehicle model and year
  • Diagnostic report
  • 48V battery voltage
  • SOC if available
  • Fault codes
  • Short description of what happened before the fault appeared

This helps us confirm compatibility and advise whether the battery is likely to be recoverable before anything is sent.

Common Land Rover / Range Rover models

Common applications may include selected Land Rover and Range Rover models fitted with 48V mild hybrid systems, including:

  • Range Rover Evoque MHEV
  • Land Rover Discovery Sport MHEV
  • Range Rover Velar MHEV
  • Range Rover Sport MHEV
  • Range Rover MHEV
  • Defender MHEV

Please contact us first with a clear battery label photo and diagnostic report so we can confirm compatibility before you send anything.

Common fault symptoms

  • 48V battery will not charge
  • 48V battery locked after low voltage
  • Crash shutdown active
  • Mild hybrid system unavailable
  • Stop/start system not working
  • Charging system warning on the dashboard
  • Vehicle stuck in safe mode or restricted performance
  • BMS faults remain after generator or DCDC converter replacement
  • Battery not working after the vehicle was left standing

How to proceed

Please contact us first with your battery photo, vehicle details, fault symptoms, voltage, SOC, and diagnostic report. Once compatibility is confirmed, we will advise you on sending the battery or BMS module to us.

Important

If the original problem was caused by a faulty generator, faulty DCDC converter, wiring issue, or accident damage, the root cause must be repaired before refitting the battery. Otherwise the battery may lock again or the same fault may return.

Where to send your module

Bowland Autotech Ltd
11 Penny Stone Road
Halton, Lancaster
LA2 6QE
United Kingdom
Mobile: +44 7342658764

Please note

  • This is a repair / reset service for your own 48V battery or BMS module
  • No battery is supplied
  • Please contact us first before sending anything
  • Severely damaged, water-damaged, burnt, or previously tampered units may not be recoverable