CTEK D250SE Lithium DC/DC Converter 12V
20A charger with dual input and selectable charging voltage
Enjoy more and relax
Equipped with award-winning Swedish technology and featuring dual input, the D250SE maximizes your vehicle's battery capacity and is the ideal charger for vehicles without mains power access.
The DS250SE is a fully automatic charger with a five-stage charging process that delivers up to 20 A to any 12 V lead-acid battery or any 40 to 300 Ah lithium-type auxiliary battery*. It features selectable charging algorithms for AGM and lithium-type batteries* and, thanks to its dual input, can be powered by solar or alternators in parallel, as well as wind power. When the auxiliary battery is fully charged, the DS250SE automatically switches to trickle charging for the starter battery. The DS250SE also delivers a stable current of up to 20 A in vehicles with a smart generator and has a temperature sensor for optimized charging in all weather conditions. *) 12 V lithium batteries (LiFePO4, LiFe, Li-iron, LFP)
- Fully automatic, temperature-compensated charging while driving at 20 A for batteries between 40 Ah and 300 Ah
- Dual input (solar module and alternator in parallel)
- Compatible with smart generators
- Selectable lithium* and lead-acid mode
- Solar module charge controller with MPPT (Maximum Power Point Tracking)
- *) 12 V lithium batteries (LiFePO4, Li-Fe, Li-iron, LFP)
- Battery disconnect function requires no diodes or VSR relays
- Adjustable AGM mode: 14.4 V or 14.7 V
- Maximized charging efficiency to increase battery performance and battery life
- Temperature sensor for optimizing the charging process in cold environments
- Splashproof and dustproof (IP65)
- Compatible with SMARTPASS 120S for the ultimate 140A power management solution
- 2-year warranty
- Positioning Permanent installation / On-board
- Back discharge current: Less than 1 Ah/month
- MPPT Yes
- Net weight (device with cables) 0.7 kg
- Gross weight (devices with packaging) 0.9 kg
- Ripple less than 4%
- Dimensions in mm (LxWxH) 192x110x65
Technical data
| name | Value |
|---|---|
| % SALE % | No |
| Output voltage (V) | 14.4/14.7, 20 A lead battery, 14.2, 20 A LiFePO4 |
| Battery capacity (Ah) | 40-300 |
| Battery type | 12V: WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO4 |
| Description | CTEK D250SE Lithium DC/DC Converter 12V |
| Width (mm) | 110 |
| Input voltage (V) | 11.4-23, 25 A |
| Maintenance charge | 40-300 Ah |
| Warranty (J) | 2 |
| Weight (kg) | 0.7 |
| Charger type | Five-stage charging program |
| Length (mm) | 192 |
| brand | CTEK |
| Protection class | IP65 |
| Current (A) | 20 |
| Depth (mm) | 65 |
| type | 40-315 |
| Ambient temperature °C | -20 °C to +50 °C |
| volt | 12 |
