Smartpass 120S charges and supplies the service battery and equipment with 120A, separates critical equipment from non-critical equipment ensuring that radio, emergency lights and navigation systems always have power.


Smartpass 120S is a 120A Power Management Solution which distributes, controls and maximises the available energy from your alternator to power service batteries and consumers.

SMARTPASS 120S handles all 12V batteries between 28-800Ah.

The Smartpass 120Ss Battery Guard function ensures that critical equipment such as radio, emergency lights and navigation systems always have power and take priority when the voltage on the service battery is low disconnecting non-critical consumers.

The unit’s Battery Guard will protect your service battery from total discharge and built in over temperature protection reduces charge current before the battery temperature gets too high.

SMARTPASS 120S is compatible with the D250SA and D250SE 20A on board chargers.



Battery separation eliminates diodes and VSR relays

Fully automatic

Maximizes battery life

Battery Guard to protect your secondary battery from total discharge

Dynamic over current protection to handle temporary inputs and outputs of up to 350A for fast charging

Battery temperature protection for added safety

Splash and dust proof (IP65)

2-year Manufacturer Warranty

Model # CTSMARTPASS120S (40-289)
Brand CTEK
Shipping Weight 1.1000kg
Shipping Width 8.000m
Shipping Height 27.000m
Shipping Length 14.000m
Type Automotive Electrical
Product Type Battery Chargers
Brand CTEK

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