TECHNICAL SPECIFICATION
Model number
Input
Output
Start voltage
Back current drain*
Ripple**
Ambient temperature
Battery types
Battery capacity
Dimensions
Insulation class
Weight
Warranty
*) Back current drain is the current that drains the battery if the charger is not connected to the mains. CTEK chargers has a very low back current.
**) The quality of the charging voltage and charging current is very important. A high current 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.
LIMITED WARRANTY
CTEK issues this limited warranty to the original purchaser of this product. This limited warranty
is not transferable. The warranty applies to manufacturing faults and material defects. The
customer must return the product together with the receipt of purchase to the point of purchase.
This warranty is void if the product has been opened, handled carelessly or repaired by anyone
other than CTEK or its authorised representatives. CTEK makes no warranty other than this
limited warranty and is not liable for any other costs other than those mentioned above, i.e.
no consequential damages. Moreover, CTEK is not obligated to any warranty other than this
warranty.
I2420
1320
220–240VAC, 50–60Hz, max 3A
24V, 20A
0.5V
Less than 1Ah/month
Less than 4%
-20°C to +50°C (-4°F to +122°F)
All types of 24V lead-acid batteries (WET, MF, Ca/Ca, AGM, GEL) and Lithium-ion (LiFePO₄, LFP)
40–300Ah
1,4 kg
SUPPORT
For support, FAQ, latest revised manual and more information about CTEK products:
www.ctek.com.
220–240VAC, 50–60Hz, max 7A
24V, 40A
Less than 7Ah/month
Less than 4%
100–1500Ah
See DIMENSIONS
IP64
2 year
I2440
1340
0.5V
3,0 kg
EN • 7
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