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CTEK SmartPass 120S w/Installation Kit — part 40-678, product view 1
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CTEK SmartPass 120S w/Installation Kit

CTEK
CTEK40-678
7340103406785
Battery Chargers
Out of stock
$ 599.99 $ 569.99

The CTEK SMARTPASS 120S power-management kit, part number 40-678, provides a purpose-built connection, charging, testing, protection, or mounting solution for compatible 12-volt service-battery systems and D250SE installations. Match the exact electrical interface and product compatibility before ordering.

Key Features

  • Smartpass 120S 12V all types WET,EFB, Ca/Ca, MF, AGM, GEL and Lithium.

Fitment

Fitment Type Universal by exact battery, charger, connector, or dimensional compatibility
Compatible Application compatible 12-volt service-battery systems and D250SE installations
Vehicle YMM Not assigned because compatibility is determined by the electrical or equipment interface

Specifications

Manufacturer CTEK
Manufacturer Part Number 40-678
Product Type Battery Chargers
Compatibility Basis compatible 12-volt service-battery systems and D250SE installations

What's Included

  • One new CTEK SMARTPASS 120S power-management kit identified by part number 40-678
  • Only the cables, connectors, mounting pieces, and accessories expressly listed for this exact part number

About CTEK

CTEK develops battery chargers, maintainers, onboard charging equipment, power-management products, and compatible connection accessories. Correct selection depends on battery chemistry and capacity, electrical ratings, connector type, charger family, and exact manufacturer part number.

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Frequently Asked Questions

How do I confirm this charger is suitable for my battery?
Confirm the battery voltage, chemistry, capacity range, required charging program, connection method, and the exact CTEK part number. This product is intended for compatible 12-volt service-battery systems and D250SE installations.

Can the charger remain connected for maintenance?
Use only the maintenance function and connection method stated in the CTEK manual for this exact model. Confirm ventilation, temperature, battery condition, and terminal polarity before unattended maintenance.

What should I check before charging?
Inspect the battery for damage or freezing, verify polarity and terminal condition, confirm the selected program matches the battery chemistry, and follow the exact CTEK operating manual.

Installation Instructions

Read the CTEK instructions for the exact part number before installation. Disconnect power where required, verify polarity and electrical ratings, secure every terminal and connector, route cables away from heat and moving parts, and confirm correct charger operation before leaving the system unattended.

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