Skoda Octavia Tour Owner's Manual page 140

– Switch the ignition and all electrical components off.
– Only for "quick-charging": Disconnect both battery cables (first of all "negative",
then "positive").
– Carefully attach the terminal clamps of the charger to the battery terminals (red
= "positive", black = "negative").
– You can now plug the mains cable of the charger into the power socket and
switch on the charger.
– When charging is completed: switch the charger off and unplug the mains cable
from the power socket.
– Only then should you disconnect the terminal clamps of the charger.
– Reconnect the cables to the battery (first of all "positive", then "negative").
It is not normally necessary to disconnect the cables of the battery if you recharge
the battery using low amperages (as for example from a mini-charger). Please also
refer to the instructions from the charger manufacturer.
A charging current of 0.1 of the total battery capacity (or lower) is that which should
be used until full charging is achieved.
It is, however, necessary to disconnect both cables before charging the battery with
high amperages, so-called "quick-charging".
"Quick-charging" a battery is dangerous 
page 136. It requires a special charger and appropriate knowledge. We therefore
recommend that you have your battery quick-charged only by your Škoda Service
Partner.
A discharged battery may already freeze at temperatures just below 0 °C 
recommend that you no longer use a battery which has thawed out because the
casing of the battery may be cracked through the formation of ice and this would
allow battery electrolyte to flow out.
The vent plugs of the battery should not be opened for charging.
WARNING
•
Never charge a frozen or thawed battery - risk of explosion and caustic
burns. Replace a frozen battery.
•
Never charge a battery which has a too low electrolyte level - risk of explo-
sion and caustic burns.
Using the system Safety
in "Working on the battery" on
. We
Driving Tips
Disconnecting and reconnecting the battery
On disconnecting and reconnecting the battery the following functions are initially
deactivated or are no longer able to operate fault-free.
Operation
Electrical power window (operational faults)
Enter radio code number
Set hours
Data in the multi-functional indicator* are
deleted.
We recommend having the vehicle checked by a Škoda Service Partner to ensure
full functionality of all electrical systems.
Replacing the battery
You should only replace a battery with a new battery of the same capacity, voltage
(12 V), amperage and of the same size. Škoda Service Partners have a range of suit-
able batteries available.
We recommend that you only have an old battery disposed of by your Škoda Service
Partner since it does require special disposal.
For the sake of the environment
Batteries contain poisonous substances such as sulphuric acid and lead. They must
be disposed of in accordance with local environmental protection regulations and
on no account as domestic waste.
•
In view of the problems involved with its proper disposal, we recommend having
the battery replaced by a specialist garage.
General Maintenance Breakdown assistance
Inspecting and replenishing
Operating measure
 page 39
see Radio Operating Instructions
 page 17
 page 18
Technical Data
139