CTEK SMARTPASS 120S DCDC 12V 12V charger | Advanced energy management for starter and service batteries
The Smartpass 120S is a 120 A energy management device designed to distribute, control and maximise the efficiency of the energy generated by your alternator. It powers your auxiliary battery and connected appliances. Compatible with all 12 V batteries from 28 to 800 Ah, it ensures a reliable power supply.
Thanks to its Battery Guard function, the Smartpass 120S ensures that essential equipment, such as the radio, signal lights and navigation devices, remains operational even when battery voltage is low. It prioritises these devices by disconnecting non-essential items, thus protecting your auxiliary battery against complete discharge. Its integrated thermal protection system adjusts the charging current to prevent overheating.
The SMARTPASS 120S is compatible with the 20 A D250SA and D250SE on-board chargers. It offers several key features: battery separation without diodes or VSR relays, fully automatic operation, optimised battery life and dynamic overvoltage protection to manage peaks of up to 350 A. It is also resistant to splashes and dust (IP65).
Technical data:
- Input: 11,5–23 V, 120 A (350 A temporarily for 10 seconds)
- Output: 120 A (350 A temporarily for 10 seconds)
- Battery capacity: 28–800 Ah
- Charging category: DC charging
- Leakage current: Less than 7 Ah/month
- Battery voltage: 12 V
- Compatible battery types: Lead-acid, lithium-ion
- Operating temperature: -20 °C to +50 °C (-4 °F to +122 °F)
- Protection rating: IP65
- Gross weight: 0,9 kg
- Dimensions (L x W x H): 192 x 110 x 65 mm
- Net weight: 0,7 kg
The Smartpass 120S is the perfect tool for ensuring efficient and safe energy management in your battery systems.
