TECHNICAL SPECIFICATION
MODEL NUMBER
2009
INPUT
220–240 VAC, 50-60 Hz, 1.2 A
OUTPUT
12V, 8.0 A
START VOLTAGE
1.8V Lead-acid battery types, 1.8V Lithium battery types: LiFePO
BACK CURRENT DRAIN*
Corresponding to less than 1.5 Ah/month
RIPPLE**
Less than 4 %
AMBIENT OPERATING TEMPERATURE
-30°C to +50°C (-22°F to +122°F)
12V Lead-acid battery types: WET, MF, Ca/Ca, AGM, EFB, GEL,
BATTERY TYPES
12V Lithium battery types: LiFePO
BATTERY CAPACITY
3–180 Ah
INGRESS PROTECTION
IP65
TEMPERATURE COMPENSATION
Built in charge voltage compensation according to ambient temperature
NET WEIGHT (UNIT WITH CABLES)
0.675 Kg (1.5 lbs)
DIMENSIONS (L X W X H)
235 x 88 x 52 mm (9.25 x 3.4 x 2 in)
MAINS CABLE LENGTH (INPUT)
1.4m (55 in)
2402 - 2480 MHz
FREQUENCY BAND
+20 dBm
MAX. RF OUTPUT POWER (EIRP), Wi-Fi
MAX. RF OUTPUT POWER (EIRP),
+10 dBm
BLUETOOTH® LOW ENERGY
*) 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 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.
REVISIONS
The descriptions, information and specifications contained in this manual were in effect at printing. To make
sure that the maintenance instructions are complete and up to date, always read the manual published on our
website.
© CTEK SWEDEN AB
LIMITED WARRANTY
CTEK SWEDEN AB, 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 for 5 years from the date of purchase. The
customer must return the product together with the receipt of purchase to the point of purchase. This warranty is void if the
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battery charger has been opened, handled carelessly or repaired by anyone other than CTEK SWEDEN AB or its authorised
representatives. CTEK SWEDEN AB 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 SWEDEN AB is not obligated to any other warranty other than this warranty.
EU DECLARATION OF CONFORMITY
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Hereby, CTEK SWEDEN AB, declares that the radio equipment type, CS ONE (Model 2009) is in compliance with Directive
2014/53/EU.
The full text of the EU declaration of conformity is available at the following Internet address:
https://www.ctek.com/uk/quality/doc
BLUETOOTH
The Bluetooth
by CTEK is under license. Other trademarks and trade names are those of their respective owners.
SUPPORT
CTEK offers a professional customer support. Get in touch using the following:
Compatible accessories for the CS ONE can be found on the CTEK website - ctek.com
COPYRIGHT
These instructions are delivered "as is" and contain content that can change without prior notice. CTEK Sweden AB does
not guarantee that everything is correct in the instructions. CTEK Sweden AB is not responsible for faults or incidents or
damage that is caused by not following the instructions in this manual.
© Copyright CTEK Sweden AB 2025. All rights restricted. Copying, adaption or translation of these instructions are
strictly forbidden without written approval by CTEK Sweden AB, except what is regulated by copyright laws.
WWW.CTEK.COM
®
®
word mark and logos are registered trademarks owned by the Bluetooth
ctek.com/support
EN
®
SIG, Inc. and any use of such marks
CS ONE (GEN 2) | USER MANUAL | 9