DC to DC

DC CHARGING WITH MPPT SOLAR INPUT AND LITHIUM CHARGE PROFILE

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 suns 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

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 dust proof)
Ripple**; Less than 4%
Model Number; 40-315

CLEARANCE SPECIAL PRICE

More Power while you drive

Fully automated control

SMARTPASS controls and optimises energy and has a built in low voltage disconnect to make sure critical equipment such as radio, emergency lights and navigation systems always function. It’s suitable for boats, service vehicles, camper vans, caravans, RVs and heavy vehicles.

SMARTPASS is a fully automatic power management system for controlling and optimising energy produced by alternators or conventional AC/DC chargers, which is then distributed to battery banks and consumers. It can handle up to 80A for batteries between 28-800Ah and is suitable for all types of 12V battery. It will only charge the house batteries when the DC circuit is being powered from a charging source so you never have to worry about a flat starting battery. When used with the D250S DUAL, SMARTPASS provides optimal charging through CTEK’s unique staged charging cycle to protect your battery.

• Battery separation eliminates diodes and VSR relays
• Delivers 80A for quick recharge of batteries 28-500Ah
• Compatible with DUAL D250S and D250SA and delivers up to 100A charge when matched with either of these two units.
• Prioritizing critical consumers and supplies consumers directly from the alternator

• Fully automatic
• Simple to install and use
• Maximizes battery life
• Reduced charging times and costs
• Separates consumers from service batteries for more effective charging
• Temperature protection for service batteries
• Safe spark free operation
• Short circuit proof

Automatic DC Switching System with Low Voltage Disconnect

High power DC charging is still an issue above 60A, so this Smartpass was designed to bridge the requirements for higher current to large battery banks. It can be used as a digital relay with the added functionality of emergency jump-starting abilities. Charging voltages are still controlled via the alternator (which is increased to their optimal voltage figures matching AGM or Wet cell if used in conjunction with the D250SE unit). With an isolated low voltage disconnect circuit, you can ensure essential communication or navigation lights are left running while non-essential equipment is turned off to save the batteries' power.

PICTURED WITH D250SE WHICH IS PURCHASED SEPARATELY.

• Smart alternator compatible
• Compatible with D250SA and D250SE for the ultimate 140A power management solution
• Start assistance function
• Battery separation eliminates diodes and VSR relays
• Fully automatic
• Maximizes battery life
• Battery Guard to protect your secondary battery from total discharge
• Dynamic over current protection to handle temporary inputs and outputs of up to 350A for fast charging
• Battery temperature protection for added safety

Technical information
Ambient temperature; -20˚C to +50˚C (- 4°F to +122°F)
Positioning; Permanent installation/onboard
Warranty; 2 years
Input; 11.5–23V, 120A max (350A temporarily for 10 seconds)
Output; Max. 120A (350A temporarily for 10 seconds)
Back current drain*; Corresponding to less than 7Ah/month
Battery types; 12V:, WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePO₄
Battery capacity; 28-800Ah
Net weight (unit with cables); 0.7
Gross weight (unit in box); 0.9
Insulation class; IP65 (splash and dust proof)
Model Number; 40-289

This input cable set allows you to charge up your CS Free from a DC 12V battery or to use the CS Free as a DC to DC charger.

Use a separate 12V service battery to power your CS FREE without being connected to a power outlet.