
Power your CTEK CS FREE from a separate 12V service battery with the CTEK USB-C Charge Cable Clamps (MFG PN 40-465). Red and black battery clamps connect to the service battery terminals while the USB-C plug connects to the CS FREE charging input, letting you use the CS FREE away from a wall outlet. The strong, tangle-resistant cable is designed for straightforward field connection when you need portable battery charging and maintenance capability.
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