Buy now, pay later with Learn More

Need Help?

We've got you covered!

Sales & Service Hours

Sales & Service Hours

Customer Service

  • Monday to Friday: 8am - 6pm EST
  • Saturday/Sunday: Closed


  • Monday to Saturday: 8am - 11pm EST
  • Sunday: 9am - 10pm EST

CTEK Multi US 25000 Battery Charger 56-674

Product Information
Our Price:
Part #:
Product Type:
Multi US 25000 Battery Charger
Multi US 25000 Battery Charger


  • Input voltage AC 100-120VAC, 50-60Hz
  • Output voltage Nominal: 12V
  • Efficiency HIGH 85%
  • Charging voltage 14.4V, temperature compensated
  • Charging current 25A max
  • Back current drain* <2Ah per month
  • Ripple** 4%
  • Ambient temperature 0°F to 120°F, output power is reduced automatically at higher temperatures
  • Cooling Fan
  • Type of charger 8 step, fully automatic switch mode with pulse maintenance
  • Type of batteries 12V lead-acid batteries (Wet, MF, AGM, GEL and Ca)
  • Battery capacity 50-500Ah
  • Insulation IP44 (outdoor use)
  • Many accessories for charging all kinds of batteries

Multi US 25000 is an 8-step, fully automatic primary switch mode battery charger. The Smarter Charger with maximum power to rapidly charge. A powerful charger for 12V batteries that require rapid charging such as in garages, RV's, boats and of course trucks and cars. Simplicity, safety and flexibility is what you get with this smart charger.

The patented desulfation fuction extends life and the weather-resistant design makes for use in any weather or road condition. The rapid charging comes in handy when you are in a hurry and the supply and recondition mode also increases battery life. Plus all CTEK chargers are safe to use and are protected from reverse polarity connections for spark free operation.

View Available Part Numbers For This Product Line


Watch This Video
Put a CTEK Smarter Battery Charger In Your Corner
Watch This Video
The Voice of your Battery: the CTEK Comfort Indicator


5 Year Warranty

5 Year Limited Warranty from CTEK Power, Inc.