Power management system for starter batteries and secondary batteries Smartpass 120S is a 120 A energy management system that distributes, controls and maximizes the energy provided by the alternator to supply the service batteries and end devices. SMARTPASS 120S is suitable for all 12 V batteries between 28 Ah and 800 Ah. The battery monitor function of the Smartpass 120S prioritizes important devices such as radio, emergency lighting and navigation systems by supplying them with priority power, while non-critical consumers are switched off when the service battery voltage is low. The device's battery monitor protects your service battery from deep discharge, and the integrated overtemperature protection reduces the charging current before the battery temperature rises too high. SMARTPASS 120S is compatible with the D250SA and D250SE on-board chargers. Functions Battery disconnect function eliminates the need for diodes and VSR relays Fully automatic Maximizes the service life of the battery Battery monitor to protect the secondary battery from deep discharge Dynamic overcurrent protection enables short-term currents of up to 350 A for fast charging Battery temperature protection for additional safety Splash-proof and dust-proof (IP65)

For heavy-duty vehicles The D250TS is a fast, fully automatic 4-stage DC/DC battery charger with disconnect function for vehicles with dual 24 V battery banks. The D250TS is ideal for buses, commercial vehicles, motorhomes and boats. It delivers 10 A for 24 V batteries between 28 Ah and 200 Ah and has a 12 V output for supplying the starter battery and connected 12 V consumers. The D250TS complies with protection class IP65 for outdoor use and is suitable for all types of lead-acid batteries, including maintenance-free, liquid, EFB, Ca/Ca, AGM and gel batteries. With the D250TS, you can rest assured that your batteries will always receive the optimum charging voltage. Features Quick installation at lower cost Automatically adapts to any connected power source Automatic battery equalization of 24 V systems Input voltage: 14-30 V DC Output: 28.8 V/10 A, 14.4 V/10 A

Charger 20 A with dual input and selectable charging voltage The DS250SE is a fully automatic charger with a five-stage charging process that provides up to 20 A for any lead-acid battery with a working voltage of 12 V or any lithium* type service battery from 40 to 300 Ah. It has selectable charging algorithms for AGM and lithium* batteries and can be operated via solar or alternators in parallel as well as wind power thanks to its dual input. When the service battery is fully charged, the D250SE automatically switches to trickle charging for the starter battery. The D250SE delivers a stable current of up to 20 A even in vehicles with a smart alternator and has a temperature sensor for an optimized charging process under all weather conditions. *) 12 V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP) Functions Battery disconnect function no diodes and VSR relays required Adjustable AGM mode: 14.4 V or 14.7 V maximized charging efficiency to increase battery performance and battery life Temperature sensor to optimize the charging process in cold environments Splash-proof and dust-proof (IP65) compatible with SMARTPASS 120, SMARTPASS 120S for the ultimate 140 A energy management solution

120 A DC/DC energy management system Smartpass 120 is a 120 A energy management system that distributes, controls and maximizes the energy provided by the alternator to supply the service batteries and end devices. SMARTPASS 120 is suitable for all 12 V batteries between 28 Ah and 800 Ah. The battery monitor function of the Smartpass 120 prioritizes important devices such as radio, emergency lighting and navigation systems by supplying them with priority power, while non-critical consumers are switched off when the service battery voltage is low. The device's battery monitor protects your service battery from deep discharge, and the integrated overtemperature protection reduces the charging current before the battery temperature rises too high. SMARTPASS 120 is compatible with the D250SA 20A onboard charger. Functions Fully automatic Maximizes the service life of the battery Battery monitor to protect the secondary battery from deep discharge dynamic overcurrent protection enables short-term currents of up to 350 A for fast charging Battery temperature protection for additional safety splash-proof and dust-proof (IP65)