Charging Using The 12V Adaptor; Operation - Clarke JS900 Operating & Maintenance Instructions

cause the needle on the voltmeter to indicate the state of charge
of the battery.
• Once the charger is disconnected, it will be noted that the voltage
will slowly settle back. This is quite normal and should not cause
alarm. When the LED extinguishes, charging will automatically stop,
indicating that the battery is at maximum capacity.
IMPORTANT: DO NOT allow the needle to enter the RED zone as this could
damage the battery.

CHARGING USING THE 12V ADAPTOR

1. Plug the jack plug into the charging socket at the rear of the unit, then into
the cigar lighter socket on the vehicle and start the engine. The red LED on
the jump-start will indicate that charging is in progress.
2. Continue to charge until the "Internal Battery Status" gauge registers 'OK'
when the 'TEST' button is pressed, WITH THE CHARGING CURRENT
DISCONNECTED. i.e. disconnect the cigar lighter adapter from the socket
on the vehicle before pressing the TEST switch.
NOTE: We recommend that you use this system only when necessary, as
prolonged use will reduce the life expectancy of the battery, due
to the fact that this method can only charge the battery to
approx. 50% of its capacity.
NOTE: For maximum battery life, we strongly recommend that you
maintain the battery in a fully charged state at all times.
NOTE: If charging does not take place, check the green LED on the
adapter. Ensure all connections are clean and free of grease etc.

OPERATION

WARNING: FAILURE TO FOLLOW THE INSTRUCTIONS BELOW AND THE
SAFETY INSTRUCTIONS ON PAGES 3/4, MAY RESULT IN PERSONAL INJURY,
DAMAGE TO THE VEHICLE, OR THE POSSIBILITY OF AN EXPLOSION
Always carry out the following preliminary checks before connecting the
jump-start to the car battery:
• Ensure the vehicle ignition and ALL ancillary equipment - lighting,
radio etc, is switched off.
• Ensure the vehicle battery is rated at 12V and is not damaged in any
way.
Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com
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