SKU: 91631569956

CTEK 140A Off Road DC/DC Bundle: D250SA + Smartpass 120S + Battery Monitor

Sale price$392.85 Regular price$436.50
Save 10%

Pay in installments of $109.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

CTEK 140A Off Road DC/DC Bundle: D250SA + Smartpass 120S + Battery MonitorThe Ultimate 140A Off Road Charging System comprises the CTEK D250SA, Battery Monitor and Smartpass 120 pack, and offers a powerful solution that is safe and flexible. The D250SA delivers 20A of power to charge, condition and maintain any 12V lead acid service battery while on the move. It is compatible with smart alternators, which means that the D250SA will still operate even if the alternator is shut off. The D250SA also has a built in temperature

The Ultimate 140A Off Road Charging System comprises the CTEK D250SA, Battery Monitor and Smartpass 120 pack, and offers a powerful solution that is safe and flexible.

The D250SA delivers 20A of power to charge, condition and maintain any 12V lead acid service battery while on the move. It is compatible with smart alternators, which means that the D250SA will still operate even if the alternator is shut off.

The D250SA also has a built-in temperature sensor that compensates for hot or cold conditions. This ensures that your batteries are fully charged in the shortest possible time without the risk of over or under charging. In addition, it allows for direct connection to solar power sources without the need for a regulator. It features a Maximum Power Point Tracker (MPPT) to get the maximum power out of the solar panels.

The separate CTEK Digital Battery Monitor Display 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.

To complement the D250SA, the Smartpass 120 is a fully automatic 120A power management system that distributes power between the starter battery, the service battery, and your on-board equipment with the need for traditional diodes or VSR relays.

The Smartpass 120 features Dynamic Over Current Protection, providing outputs of up to 350A for up to 10 seconds when powering equipment that require more than 120A. It also has Current Source priority function, wherein it will supply power to critical equipment directly from the alternator when the engine is running. This ensures that critical functions like starters, radios, emergency lights, and communication systems will always have the power needed.

The Smartpass 120 can also assist in starting up your engine if the starter battery is flat by drawing power from the service battery. And with battery temperature protection, it switches off charging when the service battery gets too hot.

This pack has a 2 year Australian Warranty and is without doubt the ideal system for anybody who has serious power requirements when travelling.

Specification


  • D250SA Charger
  • Ambient operating temperature: -20 ˚C to +50 ˚C (- 4 °F to +122 °F)
  • Positioning: Permanent installation / on board
  • Warranty: 2 years
  • 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
  • Battery capacity: 40–300 Ah
  • Ingress protection: IP65
  • Smartpass 120S Power Management System
  • Ambient operating temperature: -20 ˚C to +50 ˚C (- 4 °F to +122 °F)
  • Positioning: Permanent installation / on board
  • Warranty: 2 years
  • Input: 11.5–23 V, 120 A (350 A temporarily for 10 seconds)
  • Output: 120 A (350 A temporarily for 10 seconds)
  • Back current drain*: Corresponding to less than 7 Ah/month
  • Battery types: 12 V:, WET, MF, Ca/Ca, AGM, EFB, GEL
  • Battery capacity: 28–800 Ah
  • Ingress protection: IP65
  • Digital Battery Monitor
  • Supply voltage: 8 - 16 Volts DC
  • Supply current: 1.5 milliamps
  • Battery capacities: 5 - 600 AMP Hour
  • Load current: 199 A Maximum
  • Charge current: 199 A Maximum
  • Shunt Standard: 50 millivolt @ 100 AMP

IN THE BOX

  • 1x CTEK D250SA
  • 1x CTEK Smartpass 120S
  • 1x CTEK Digital Battery Monitor

SKU: CTEK-40-256-289


We accept Change of Mind returns for 14 days after you have received the item in cases where you have changed your mind or made an incorrect purchase and wish to return the product. This also applies to orders canceled when the item has already been dispatched from our warehouse. The item must be in a re-saleable condition to qualify for a change of mind refund. Deductions may apply including Initial and Return Shipping, as well as restocking fee of 10% of the product price

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91631569956

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 27 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jason K.
Lexington, US
★★★★★ 5
Very Straightforward and Easy to Use
Reload type: One Time Reload
I have used this several times, and it has always been a smooth and convenient experience. The biggest advantage is how intuitive the process is. Reloading the balance is simple, quick, and easy to understand without unnecessary steps or confusion. It is especially useful for managing spending, setting a shopping budget, or keeping funds ready for future purchases. Instead of entering payment details every time, having balance available makes checkout faster and more convenient. I also appreciate how quickly the funds are applied, allowing immediate use once the reload is completed. This is one of those simple Amazon features that works exactly the way it should. Overall, easy, efficient, and user-friendly. I have been very satisfied with it. Five stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
M
Verified Purchase
Martini81
Draper, US
★★★★★ 5
Easy and simple: Exact Step-by-Step Guide to Reloading Your Balance
Reload type: One Time Reload
I found reloading my Amazon gift card balance much easier than expected. The process was simple and took about 5 minutes at most. Here are the exact steps to do it: ​Login: In the Amazon app or on Amazon.com, log in to your account. ​ Menu: Tap the 3 lines on the bottom right corner of your screen (next to Rufus, Amazon's AI). ​ Find Category: In the section highlighted "Shop by category," tap on Gifting & Registry (3rd option down in that section) and a drop-down menu will appear. ​ Select Gift Cards: On the drop-down menu, tap Gift Cards (first option). ​ Choose Your Action: "The Gift Card Shop" will appear. There you will have three options: "Redeem a gift card," "View your balance," and "Reload." ​ Start Reload: To add funds, tap Reload. ​ Select Type: Scroll down to "Add funds directly to your Amazon Gift Card balance" and tap which reload type you want (one-time, low balance auto-reload, or scheduled auto-reload). ​ Enter Amount: Choose your reload amount. The default is $25, but you can type in your own amount as well (the minimum amount is $5.00). ​ Finish: Tap the orange "Buy Now" tab. ***I used the Amazon app using the u i OneUI version 8.0 these Amazon app on Android version 16 (Baklava) on a Samsung Galaxy S25 Ultra. Others may have a slight variation of the menu setup on the Amazon app.***
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
K
Verified Purchase
Kenneth Lucas
San Leandro, US
★★★★★ 5
Easy way to add balance
Reload type: One Time Reload
Reloading my Amazon gift card balance has been easy and convenient. I like using it when I want to keep a little money set aside for Amazon orders or make checkout quicker without thinking about which card I want to use. The process is straightforward, the balance shows up fast, and it has been reliable every time I have used it. It is also helpful for budgeting because I can add a set amount and then use that balance for regular purchases. Nothing complicated about it, which is exactly why I like it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
L
Verified Purchase
Laura Sinkler
Chelsea, US
★★★★★ 5
Monthly reload for Subscribe & Save Orders
Reload type: One Time Reload
Not a glamorous review, but a genuinely useful tip for Subscribe & Save users. I reload about $100 to my gift card balance once a month, a week or two before my S&S order processes. Amazon pulls each Subscribe & Save item as a separate transaction, which means 10+ individual charges hitting your bank account on before or on ship day. A headache for budgeting and a minor anxiety trigger if you're watching your account for unauthorized activity. Loading the balance first consolidates everything into one clean transaction. Your S&S order then pulls from the gift card balance rather than your card directly, and your bank statement stays tidy. The side benefit is built-in budget discipline. I set about $100 as my monthly Amazon ceiling - if my cart runs over, something gets pushed to next month. It's a simple system that keeps spending intentional without any extra effort. If you're a regular S&S user who wants cleaner finances and less ""wait, who charged this and what was that charge?"" moments, this is worth making a habit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
T
Verified Purchase
The Bee’s Knees. 🌸🐝
Cuba, US
★★★★★ 5
Great! 💳✨
Reload type: One Time Reload
I love using my Amazon balance! It’s always so quick and easy to use, it’s convenient and posts quickly without issues, I’ve always had good experiences with reloading my balance.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 8, 2026

recommand products