Skip to product information
1 of 6


CTEK Smartpass 120S 120A Power Management System for 12V Starter Service Battery

CTEK Smartpass 120S 120A Power Management System for 12V Starter Service Battery

Regular price $485.00 AUD
Regular price $999.00 AUD Sale price $485.00 AUD
Sale Sold out
Tax included. Shipping calculated at checkout.
  • 100% Secured Data & Payment
  • Aussie Based Customer Support
  • 30-Day Free Returns

A complete power system to take you the distance

Your starter battery, service batteries, and onboard equipment are your lifelines when you’re heading on a remote off-road adventure and the new SMARTPASS 120 is a fully automatic, 120A on-board power management system that gives you full control over that power.

The SMARTPASS 120 safely distributes power between the starter and service batteries as well as on-board devices, without the need for traditional diodes or VSR relays, and it’s just one of a number of smart features.

Power management system for starter and service batteries

Smartpass 120S is a 120A Power Management Solution that distributes, controls, and maximizes 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 warranty


Weight 2.5 kg

Dimensions 270 × 145 × 80 cm

Amps: 120A


Brand: CTEK


  • Free Delivery On Almost All Of Our Products
  • 30-Day Free Returns
  • Australian Warranty

Got any questions or want to know more about our products? Live Chat with us now or call us on (02) 5761 0297 for quick assistance.

View full details