The CTEK NXT 5 is a fully automatic 12V charger and maintainer that delivers 4.3A for both lead-acid and lithium batteries. It charges and maintains batteries from 1.2 to 160Ah at 14.4/14.7/15.8V, covering everything from motorcycles to cars and boats, and supports WET, MF, Ca/Ca, AGM, EFB, GEL, and LiFePO4 types. It includes patented desulphation and reconditioning modes, an AGM optimization mode for Start/Stop vehicle batteries, and automatic temperature compensation for extreme weather. The charger is spark-free and reverse-polarity protected, rated IP65, and ships with a permanent Connect U-terminal for quick reconnection. CTEK backs it with a 5-year warranty.
- Type: fully automatic 4.3A charger and maintainer
- Output: 4.3A at 14.4/14.7/15.8V, 12V
- Charges and maintains 1.2-160Ah
- Battery types: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4
- Patented desulphation and reconditioning modes
- AGM optimization mode for Start/Stop batteries
- Temperature compensation, spark-free, reverse-polarity protected, IP65
- Includes permanent Connect U-terminal; warranty 5 years
- Part number: CTEK40-658
FAQ
What batteries does the CTEK NXT 5 charge?
12V lead-acid and LiFePO4 lithium batteries from 1.2 to 160Ah, including WET, MF, Ca/Ca, AGM, EFB, and GEL types.
Does it work with Start/Stop batteries?
Yes. It has an AGM optimization mode tuned for Start/Stop vehicle batteries, plus desulphation and reconditioning.
Can it charge in cold weather?
Yes. It uses automatic temperature compensation for extreme weather and is rated IP65.
What is in the box?
It includes a permanent Connect U-terminal for quick reconnection and is spark-free and reverse-polarity protected.
