LR3/Disco 3
 
 
Specifications
Battery  
 
 
 
Battery Disconnect/Connect  
 
 
 
Procedure 1  
 
 
 
Procedure 2  
 
Published : Feb 4, 2005
Item
Specifications
All Gasoline (Petrol) Models:
Type
Maintenance free lead-calcium
Capacity
690 amps - 75 amp/hour
Reserve capacity
150 minutes @ 25 amps
Diesel Models:
Type
Maintenance free lead-calcium
Capacity
825 amps - 90 amp/hour
Reserve capacity
190 minutes @ 25 amps
CAUTION: The vehicle status and battery condition must be established before attempting battery
disconnect/connect. Reference must be then made to the following table to establish the relevant procedure to 
be followed. 
Vehicle status
Battery charged Battery discharged
Procedure
Procedure
Engine running
1
Vehicle powered down, locked and alarmed 2
3
Vehicle unlocked
4
5
Disconnect battery
Connect battery
1. If possible, apply parking brake or 
alternatively, chock wheels 
1. Ensure that all electrical loads are switched OFF
2. Switch off ignition
2. Connect battery leads - GROUND lead last
3. Wait 2 minutes for engine management 
system to 'power down' 
3. Switch on ignition
4. Open the hood
4. Operate parking brake switch several times until parking brake 
warning lamp is extinguished 
5. Disconnect battery - GROUND lead first
Disconnect battery
Connect battery
1. Unlock the vehicle and disarm the alarm using the 'plip' button
1. Ensure that all electrical loads are 
switched OFF 
2. Enter the vehicle, turn the ignition key to position II, apply the parking 
brake or chock the wheels and then turn the ignition key to position 0. 
Remove the key to 'power down' the ICE system 
2. Connect battery leads - GROUND lead 
last 
3. Wait 2 minutes for engine management system to 'power down'
3. Switch on ignition
