New CTEK DC-DC Lithium Battery Charger

With Smart Alternator capability, and dedicated programs for all 12V lead-acid and lithium (12V LiFePO4) battery types

Get off-grid with more power. Powering your fridge, lights, devices, and other entertainment devices can take some serious power! That’s why you’ll need to keep your auxiliary battery charged, and ready to go once you’re set up at camp.

Compatible with smart alternators, the D250SE DC DC lithium battery charger delivers a powerful 20A of power to charge, condition and maintain any 12V service battery whilst you’re on the move. While using the advanced in-built Maximum Power Point Tracker (MPPT), users can utilise solar to keep the batteries charged when set up at camp.

The NEW CTEK D250SE, 5-step charger, supplies up to 20A of power to any 12V lead-acid or ­lithium* service battery from 40–300Ah, giving 4WDers the flexibility and ease of quickly charging up your service batteries from either traditional or smart alternators, or from solar power. With the growing popularity of Lithium batteries in 4WD and Caravans, the D250SE has ­selectable charge algorithms for AGM and lithium* batteries and can use power through its dual input from alternator, solar panel and wind power. It will even give your starter battery a maintenance charge when your service batteries are fully charged.

The D250SE can maintain a stable output up to 20A to vehicles fitted with smart ECU controlled ­alternators and has a temperature sensor for ­optimised charging, regardless of weather conditions. *) 12V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)

New CTEK DC-DC Lithium (12V LiFEPO4) Charger

Direct connection for solar power

An advanced in-built Maximum Power Point Tracker (MPPT) will maximise the power from your solar panels and save you time and money since there’s no need for a separate solar regulator.

Smart alternator compatibility

Smart alternators deliver a variable output and are shut off when they’re not needed. The D250SE will still operate even when there is low alternator output and maintain a stable output of up to 20A to fully charge your battery in the shortest time.


Compatible with SMARTPASS 120, SMARTPASS 120S for the ultimate 140A power management solution for starter and service batteries.

Separate, prioritize and boost batteries and equipment

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.

View the CTEK DC DC 250SE lithium battery charger here

For more information, contact our friendly team of power system experts.

1300 224 683

Latest post
Share Post