Just looking at buying the ctek d250s dual from ebay some come with a wiring kit like the one in the link below is it really necessary. 1 what size fuse am i running between the battery and d250s.
Design Guide For 12v Systems Dual Battery Systems Solar
Ctek d250s wiring diagram. Alternator is a standard non electronic type. Ctek dcdc battery charger d250s dual and 12v power management system smartpass for all types of lead acid wet mf agm and gel. Open circuit voltage of solar panel in full sun is 22 volts dc max. The diagram is great shows cable sizes all connections including earths fuses etc and placement. Back current drain is the current that drains the battery if the charger is not connected to the mains. The ctek d250s dual does the same job as the redarc bcdc1225 has a low voltage start up.
Cabling in the engine compartment must be temperature rated at 700c 1580f. Standard wiring for ctek d250s dual. Ive read many places 50a so thats what i am leaning towards. The cabling must be run through pipe ducting separately from 230v110v wiring mains power or secured by clips at every 30 cm1 ft. Total power rating of the solar panel. No external regulator is to be fitted on solar panel.
Battery voltage 12 v battery chemistry lead acid agm gel efb mf caca ambient operating temperature 20 c to 50 c 4 f to 122 f input 11523 v 25 a output 144147 v 20 a. 5 en smartpass lamp indication during normal operation lamp steady flashing power lamp unit ready to use 2. Ctek chargers have a very low back current. Most the wiring diagrams i see have the wiring pretty straight forward but 2 places i saw commentary saying that with newer vehicles should use a relay between the d250s and alternator. Service battery can be agm or flooded type as per user manual. The ctek smartpass is designed to work together with 1 2 ctek d250s dual but can also be used alone.
Wiring is simplified if the units are installed according to the.