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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 Lithium US
Can I use the Lithium mode to charge a lead-acid battery, or use a lead-acid mode to charge a lithium battery?
No. You should never mix charging modes or battery types.
Always use the correct mode for the specific battery chemistry.
Using the wrong mode can lead to:
Incorrect charging voltage
Poor battery performance
Risk of battery damage
Reduced safety
For the best results and battery health, always select the appropriate mode for your battery type.