6 • EN
SAFETY
• The charger is designed for charging 12V Lithium-ion batteries with LiFePO
4
technol-
ogy
. Do not use the charger for any other purpose.
• Never try to charge non rechargeable batteries.
• Check the charger cables prior to use. Ensure that no cracks have occurred in the
cables or in the bend protection. A charger with damaged cables must not be used.
A damage cable must be replaced by a CTEK representative.
• Never charge a damaged battery.
• Never charge a battery with temperature below 0°C if not specified by the
battery manufacturer.
• Never place the charger on top of the battery when charging.
• Always provide for proper ventilation during charging.
• Avoid covering the charger.
• All batteries fail sooner or later. A battery that fails during charging is normally taken
care of by the chargers advanced control, but some rare errors in the battery could
still exist. Don’t leave any battery during charging unattended for a longer period of
time.
• Ensure that the cabling does not jam or comes into contact with hot surfaces or sharp
edges.
• Always check that the charger has switched to STEP 7 before leaving the charger
unattended and connected for long periods. If the charger has not switched to STEP 7
within 24 hours, this is an indication of an error. Manually disconnect the charger.
• This appliance is not designed for use by young children or people who cannot read
or understand the manual unless they are under the supervision of a responsible
person to ensure that they can use the battery charger safely. Store and use the bat-
tery charger out of the reach of children, and ensure that children cannot play with the
charger.
• Connection to the mains supply must be in accordance with the national regulations
for electrical installations.
TECHNICAL SPECIFICATIONS
Model number
1081
Rated Voltage AC
220–240VAC, 50–60Hz
Charging voltage
13.8/14.4 VDC
Charging current
5A max
Current, mains
0.65A
rms
(at full charging current)
Back current drain*
<1Ah/month
Ripple**
<4%
A mb i en t ***
temperature
-20°C to +50°C, output power is reduced
automatically at high temperatures
Charger type
8 step, fully automatic charging cycle
Battery types
12V LiFePO
4
batteries
Battery capacity
5–60Ah up to 120Ah for maintenance
Dimensions
168 x 65 x 40mm (L x W x H)
Insulation class
IP65
Weight
0.6kg
*) Back current drain is the current that drains the battery if the charger is not connected to
the mains. CTEK chargers have a very low back current.
**) The quality of the charging voltage and charging current is very important. A high cur-
rent ripple heats up the battery which has an aging effect on the positive electrode. High
voltage ripple could harm other equipment that is connected to the battery. CTEK battery
chargers produce very clean voltage and current with low ripple.
***) The battery charger is designed to operate from -20°C to +50°C. However battery
manufacturers may recommend other temperature ranges for charging their batteries.
Please check battery specifications.
20018043B
(6 pages)
(48 pages)
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