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CHARGING CYCLE
CTEK XS 800 has a three step fully automatic charging cycle IUoUp. At the start of charging the battery
charger delivers maximum current to the battery and the battery voltage increases constantly to a set level
of 14.4 V. At this point the voltage will be regulated and kept constant while the charging current is succes-
sively lowered. Once the charging current has dropped below 0.4 A the charger switches to maintenance
charging.
If the battery is loaded and the battery’s terminal voltage drops to 12.9 V the charger automatically switches
back to the beginning of the three step cycle. The charger requires a reverse voltage from the battery of at
least 6 V to start the charging cycle, this means that if the battery is so deeply discharged that the terminal
voltage is lower than 6 V the charger cannot charge the battery in question. A normal discharged battery has
a terminal voltage of 10.5 V.
Charging phases:
Bulk - Main charge when 80 % of charging takes place. The charger delivers a constant current until the
terminal voltage has risen to the set level.
Absorption - Complete charge up to virtually 100%. The terminal voltage is maintained at the set level.
During this phase the current drops successively so the terminal voltage does not become too high. If the
absorption phase has been in progress for more than 18 hours the charger switches to maintenance charg-
ing. This function prevents damage if the battery is faulty.
Pulse - Maintenance charging. Charging varies between 95% and 100%. The battery receives a pulse when
the voltage drops. Keeps the battery in perfect condition when it is not used. The charger can be connected
for months at a time.
BULK CHARGING TIME
The table shows times for bulk charging.
THERMAL PROTECTION
CTEK XS 800 is protected from overheating. In the event of increased ambient temperature the output is
reduced.
MAINTENANCE
The charger is maintenance free. Note that dismantling the charger is not permitted and invalidates the
warranty. If the power cord becomes damaged the charger must be returned to the dealer for repair. The
case can be cleaned using a soft, damp cloth and a mild detergent. The charger should be disconnected
before cleaning.
EQUIPMENT
CTEK XS 800 is supplied with one battery lead with a battery clip and one battery lead with a ring cable lug.
Battery capacity
(Ah)
Time to ~80% charge
(h)
2 1.5
8 6
20 20
32 36
WARRANTY
CTEK SWEDEN AB, Rostugnsvägen 3, SE-776 70 VIKMANSHYTTAN, SWEDEN provides a limited
warranty to the original Purchaser of this product. The warranty is non-transferable. The warranty covers
manufacturing faults and material defects for two years from the date of purchase. The customer must
return the product together with the receipt to the place of purchase or directly to CTEK SWEDEN AB. The
warranty ceases to be valid if the battery charger has been subject to improper use, opened or repaired by
anyone other than CTEK SWEDEN AB or its authorized representative. CTEK SWEDEN AB provides no
other warranty than this and bears no responsibility for other costs than those set out above, i.e. no possible
consequential costs. This is the only expressed warranty made by CTEK SWEDEN AB.
TECHNICAL SPECIFICATION
Voltage AC 220-240 VAC, 50-60 Hz.
Current 130 mA rms (at full charging current)
Back current drain* <1 mA
Charge voltage 14.4 V, Nominal: 12 V
Ripple** Max 50 mV rms, max 0.05 A rms.
Charging current 0.8 A max.
Ambient temperature - 20°C to + 50°C. (- 4°F to +122°F) The output is reduced automatically
with increased temperature.
Cooling Natural convection.
Charger type Three step, fully automatic IUoUp, with pulse maintenance.
Battery types All types of 12 V lead-acid batteries (Open, MF, VRLA, AGM and GEL).
Battery capacity 1.2 to 32 Ah, up to 60 Ah for maintenance.
Dimensions 142 x 51 x 36 mm (L x W x H)
Enclosure class IP 65
Weight 0.3 kg
*) Back current drain is the current that the charger drains the battery with, if the wall socket is disconnected.
**) The quality of the charge voltage and charging current are very important. High current ripple heats the
battery and ages the positive electrode. High voltage ripple can damage other equipment connected to
batteries. CTEK XS 800 produces very high quality voltage and current with low ripple.
DECLARATION OF CONFORMITY
CTEK SWEDEN AB declares under sole responsibility that the battery charger CTEK XS 800, to which this
declaration relates, is in conformity with the following standards: EN60335-1, EN60335-2-29 following the
provisions of directive 73/23/EEC amended by 93/68/EEC and EN55022, EN 61000-3-3, EN 61000-3-2,
EN55014-2 following the provisions of directive 89/336/EEC amended by 92/31/EEC and 93/68/EEC.
Vikmanshyttan Sweden, 2003-04-28
Börje Maléus, Managing Director, CTEK SWEDEN AB
CTEK SWEDEN AB
Rostugnsvägen 3
SE-776 70 VIKMANSHYTTAN
SWEDEN
Fax: 0225-307 93
www.ctek.se
Bulk
Absorption
Pulse
Time
Voltage/Current
Current
Voltage