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CTEK Assist helps you with everyday questions for your 12v/24v or EV Chargers and includes product information, a product selector tool, troubleshooting, user manuals, compatible accessories and much more.
It draws on CTEK’s knowledge and documentation to point you in the right direction—fast.
CTEK Assist for MXT 4.0
Charger is connected to a battery, but it’s stuck in power saving mode
The power indicator flashes during energy saving mode = no battery is connected, or the battery is too discharged (less than 2V).
Check that the clamps are connected properly to the recommended charging points.
Check the quick connector by disconnecting it and make sure the pins look good. Connect again and confirm proper contact.
If you have additional accessories, switch between them and compare results.
If possible, try the charger on a different known battery in good condition.