CTEK 20A Off Grid Solar Charging System - FREE SHIPPING

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  • Regular price $430.00
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The CTEK 20A OFF GRID CHARGING SYSTEM charges your battery bank while you’re driving to stop it going completely flat so you can spend more time off grid. You can charge it from smart alternator, solar or wind power and, for complete peace of mind, you can see at a glance how much charge you’ve got left and the length of time till your batteries are discharged.


Off grid charging from alternators and solar panels

The D250SA charger can get its energy from smart alternators, solar panels and wind power. It separates starter and service battery and maximizes the use of the both without risking that the starter battery is unable to start the engine. The CTEK MONITOR constantly monitors the voltage and current (charge and discharge) to show you exactly how much charge you have and how many hours you’ve got left before your battery bank is empty.


Input voltage 11,5 – 23 V DC; 14,4/14,7 V charge voltage.
Maintenance charing of starter battery
Solar panel regulator with Maximum Power Point Tracking
Simplifies installation and improves performance on extra batteries for bow thruster and anchor
Maximized battery capacity by fully charging the battery
Shortened charge time
Decreased costs by reduced idling and by efficient use of alternator and solar power
Splash and dust proof (IP65)

Technical data

Battery capacity:  40–300 Ah
Charging category:  DC charging
Back Current Drain, details:  *) Back current drain is the current that drains the battery if the charger is not connected to the mains. CTEK chargers have a very low back current.
Battery voltage:  12 V  
Battery chemistry:  Lead acid (AGM, GEL, EFB, MF, CaCa)
Input:  11.5–23 V, 25 A
Output:  14.4/14.7 V, 20 A
Back current drain*:  Corresponding to less than 1 Ah/month
Battery types:  12 V:; WET; MF; Ca/Ca; AGM; EFB; GEL
Ambient operating temperature:  -20 ˚C to +50 ˚C (- 4 °F to +122 °F)
Ingress protection:  IP65
Warranty:  2 years
Warranty, info:  Limited Warranty
Warranty, details:  CTEK issues a limited warranty to the original purchaser of the product. Depending on the product, the limited warranty period will vary. The limited warranty is not transferable. The warranty applies to manufacturing faults and material defects. The warranty is void if the product has been handled carelessly or repaired by anyone other than CTEK or its authorized representatives. CTEK makes no warranty other than this limited warranty and is not liable for any other costs other than those mentioned above, i.e. no consequential damages. Moreover, CTEK is not obligated to any other warranty other than this warranty.