• An empty cart

    You have no item in your shopping cart

CTEK D250SA Smart Charger

CTEK D250SA Smart Charger


In stock 3 lbs , , , ,


With award-winning Swedish technology, the dual input D250SA can draw its power from smart alternators and other DC sources, making it the ideal charger for vehicles that don’t have access to the main power supply. Its dual input capability means it can draw power from solar and wind sources, in parallel to the alternator. The D250SA is a fully automatic, 5-step charger that supplies up to 20A of power to charge, condition, and maintain any 12V lead-acid service battery from 40-300Ah, including Wet, MF, Gel, AGM, EFB, and Ca/Ca. The D250SA uses patented technology so it’s safe for you and your vehicle’s electronics.


  • Continuous, fully automatic charging while you’re on the move for maximum performance, battery life, and convenience
  • Compatible with smart alterations
  • Protects, charges, and maintains your starter battery – even if the engine is not running – and charges service batteries from your starter battery without the risk of starting problems
  • Fast charging from the alternator and other DC sources – even on short journeys
  • Automatic energy management in a single, easy to use unit – no need for traditional diodes or VSR relays
  • Environmentally-friendly charging with solar or wind
  • Works great in combination with CTEK Smartpass 120 Power Management System


Technical Specifications:

  • Input: 11.5–23V, 25A
  • Output: Max 14.4V (14.7V in AGM), 20A
  • Back Current Drain: Less than 1Ah/month
  • Ambient Temperature: -20°C to +50°C (-4°F to +122°F)
  • Battery Types: All types of 12V lead-acid batteries (WET, EFB, Ca/Ca, MF, AGM, and GEL)
  • Battery Capacity: 40–300Ah
  • Dimensions: 192 x 110 x 65mm (L x W x H)
  • Insulation Class: IP65 (splash and dust proof)


MPN: 40-186


Please email info@agileoffroad.com for all product inquiries. 

Additional information

Weight3 lbs
Dimensions11 × 6 × 3 in


There are no reviews yet.

Be the first to review “CTEK D250SA Smart Charger”

Your email address will not be published. Required fields are marked *