DC charging systems
Direct Current (DC) That's what a battery provides - DC Power. DC chargers use battery power to recharge other batteries. Examples of this would be using a start battery to charge a house/service battery. Or more specifically the vehicle's alternator which charges the start battery, but then the DC charger amplifies the voltage to provide the correct voltage to the house battery which might also be a different type of battery to the start battery. For instance, a start battery that a wet cell can happily charge at 13.5 volts but a much larger house battery that's an AGM technology might require 14.7v for a much longer period than what an alternator will maintain a steady 13.5 volts for.
That is why we need DC charging systems or DC to DC chargers these days with modern vehicles because a vehicle's alternator doesn't operate as it used to 20 years ago and it's even more important with Euro 5 & Euro 6 vehicles.
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NEW DC CHARGING WITH PARALLEL SOLAR INPUT - IN STOCK NOW
The latest from CTEK the D250SE leverages on the good foundation of the D250SA Dual but raises the stakes again by including a Lithium Charge profile to feature alongside its ignition feed and MPPT solar controller. A wider input voltage range on the alternator side for Euro 5+ engine for ECU controlled systems.
MPPT Solar input, alternator input with service battery charging from the solar or engine with a preference on the sun's free energy. Not to mention the ability to add the SmartPass 120S or SmartPass 120 for an additional 120A charging output.
- 20A fully automatic temperature compensated charging for batteries from 40-300Ah while you’re on the move
- Dual input (solar and alternator in parallel)
- Smart alternator compatible
- Selectable lithium* and lead-acid mode
- Solar panel regulator with Maximum Power Point Tracking (MPPT)
- Battery separation replacing diodes and VSR relays
- Selectable AGM option – 14.4V or 14.7V
- Maximised charging for better battery life and performance
- Temperature sensor to compensate for hot or cold conditions
- Compatible with SMARTPASS 120 for the ultimate 140A power management solution
*Lithium Battery Bank must utilise it's own battery monitoring system which will work in conjuction with this devices output voltages.
Technical information
Ambient temperature; -20˚C to +50˚C (- 4°F to +122°F)
Positioning; Permanent installation/on board
Warranty; 2 years
Input; 11.5-23V, 25A
Output; 14.4V/14.7V, 20A max, lead-acid battery types. 14.2V, 20A max, LiFePO4.
Back current drain*; Corresponding to less than 1Ah/month
Battery types; 12V:, WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO₄
Battery capacity; 40-300Ah
MPPT; Yes
Net weight (unit with cables); 0.7
Gross weight (unit in box); 0.9
Insulation class; IP65 (splash and dustproof)
Ripple**; Less than 4%
Model Number; 40-315