CTEK MXS 5.0 Faq

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Can I charge a lithium battery using my MXS 5.0, MUS
4.3 Test & Charge or the MUS 4.3 Polar charger?
No, your charger does not have the lithium mode, we have chargers designed for Lithium batteries
including the Lithium US, the CT5 Powersport, the Pro25S and the CS Free).
Does my MXS 5.0 charger have a temperature sensor?
If the charger is an MXS5.0 then the charger has automatic temperature compensation.
If your charger is the MUS 4.3 or any variants of the 4.3, the charger does not have temperature
compensation.
Can I use the MUS4.3 charger for long term
maintenance?
Yes, you can. The charger switches automatically to maintenance charging when the battery
is fully charged.
Why is half-battery lamp flashing rapidly and the full-
battery lamp is solid on my MUS 3300 charger?
Most likely a bad connection to the battery. Move the clamps or cig plug accessory and make
sure there is no loose connection in the quick connector. The charger could also be working
in the Desulphation phase.
Why is my MUS 7002 (MXS7.0 240V) charger “clicking”
while charging?
This is normal for our 7-amp chargers including the Multi US 7002 chargers. Relay clicks are a
confirmation of the communication between the charger and your battery to ensure the
best possible charging result combined with a low power consumption.
After connecting, my MUS 4.3 charger immediately goes
to step 3, is it faulty?
No. The charger will very quickly go past the first 2 steps if the battery is healthy.
Can I charge a dead battery with a CTEK charger?
Most CTEK charger require a minimum battery voltage of 2V. If the battery voltage is below
2V you will need one of our chargers with a” Supply mode” to accomplish this. The Supply
Mode function is currently available on our Multi US 7002, Pro25 series as well as our MXS
25EC chargers in North America.

CTEK MXS 5.0 Specifications

General

Input voltage	220-240 V
Input frequency	50/60 Hz
Battery voltage	2 V
Cable color	Black
Operating temperature (T-T)	-20 - 50 °C
Number of batteries supported	-
Product color	Black, Silver

Weight and Dimensions

Depth	168 mm
Width	65 mm
Height	38 mm
Weight	600 g