CTEK D250SE 20A 12V Charger for RVs, Trucks, and Overlanding – Compatible with Lithium Ion and Smart Alternators
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Category: ctek lithium

About this item
- Battery Support On the Go: The D250SE is a fully automatic, 5 step charger that supplies up to 20A of power to any 12V lead-acid or lithium* service battery from 40–300Ah. It has selectable charge algorithms for AGM and 12V lithium batteries (*12V LiFePO4).
- Smart Alternator Compatible: Full functionality with all types of alternators.
- Safe and Easy to Use: Splash and dustproof, designed to protect vehicle electronics and non-sparking, reverse polarity protected, and short-circuit proof. Clean voltage and current delivery ensures no surges or spikes.
- 2-year warranty.
- Built-In Temperature Sensor: Allows you to achieve maximum charge levels no matter what the temperature.
- Safeguards Delicate Devices: In contrast to simpler chargers, there’s no requirement to unplug the battery; the D250SE is uniquely engineered to ensure electronic systems remain unharmed. It prevents both overcharging and undercharging at all times.
- Charge Service and Starter Batteries: When the service battery is fully charged, the D250SE will automatically redirect maintenance charge power to the starter battery.
- Achieve Nominal Power from Your Solar Output: Solar Panel Regulator with Maximum Power Point Tracking (MPPT) optimizes available power.





















































