CTEK Smartpass 120S Power Manager



£232.50 ex VAT

  In Stock


Smartpass 120S charges and supplies the battery and service equipment with 120A, separates critical equipment from non-critical to ensuring radio, emergency lights and navigation systems always have power. Smartpass 120S is a 120A power management solution that distributes, controls and maximizes the available power of your alternator to power batteries and service consumers. SMARTPASS 120S handles all 12V batteries between 28-800Ah. The Smartpass 120Ss Battery Guard feature ensures critical equipment such as radio, emergency lights and navigation systems always have power and take priority when the voltage in the service battery is low, disconnecting non-critical consumers. The battery protector of the unit will protect your service battery from total discharge and the built-in overtemperature protection reduces the charging current before the battery temperature is too high. SMARTPASS 120S is compatible with D250SA and D250SE 20A on-board chargers.

More Information


Manufacturer's product code:40-289
Suitable for use with smart alternators?:Yes
Input Voltage - Volts:11.5 to 23V, Max 120A (350A temporarily for 10 seconds.)
Max. charging current - Amps:120
Charging Ports:1
Battery guard cut-in:11.5V
Battery guard cut-out:12.0V
Temperature protection cut-in:60 degrees C (140 degrees F)
Start assistance activation:Starter battery 6V
Trickle charge starter battery:Starter battery 11.5V to12.6V.
Suitable for battery types:All 12V lead-acid batteries including: Wet, A.G.M, gel, calcium and maintenance free + LiFePO4 lithium batteries
Operating temperature range - ?C:minus 20 degrees C to plus 50 degrees C Automatic reduction of power at high ambient temperature.
Enclosure class:IP65 (splash and dust proof)
Protections:Temperature compensated charging, Reverse Polarity protection
Certification:Fully certified for use in vehicles
Dimensions (L x W x H) - mm: 192 x 110 x 65mm
Item in Kg:1.047
Warranty - years:2

What's in the box

  • 1 x unit
  • 2 x connection plates to connect to D250SE
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