SKU: 23378096831

CTEK Smartpass 120S 120A Power Management System for 12V Starter Service Battery

Sale price$239.85 Regular price$266.50
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17

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Description

CTEK Smartpass 120S 120A Power Management System for 12V Starter Service BatterySmartpass 120S charges and supplies the service battery and equipment with 120A, separates critical equipment from non critical equipment ensuring that radio, emergency lights and navigation systems always have power. Smartpass 120S is a 120A Power Management Solution which distributes, controls and maximises the available energy from your alternator to power service batteries and consumers. SMARTPASS 120S handles all 12V batteries between 28 800Ah.

Smartpass 120S charges and supplies the service battery and equipment with 120A, separates critical equipment from non-critical equipment ensuring that radio, emergency lights and navigation systems always have power.

Smartpass 120S is a 120A Power Management Solution which distributes, controls and maximises the available energy from your alternator to power service batteries and consumers. SMARTPASS 120S handles all 12V batteries between 28-800Ah

The Smartpass 120S’s Battery Guard function ensures that critical equipment such as radio, emergency lights and navigation systems always have power and take priority when the voltage on the service battery is low disconnecting non-critical consumers. The unit’s Battery Guard will protect your service battery from total discharge and built in over temperature protection reduces charge current before the battery temperature gets too high. Smartpass 120S is compatible with the D250SA and D250SE 20A on board chargers.

Specification


  • Brand: CTEK
  • Model: Smartpass 120S
  • Input: 11.5–23V, 120A max (350A temporarily for 10 seconds)
  • Output: Max. 14.4V, 120A (350A temporarily for 10 seconds)
  • Back Current Drain: Corresponding to less than 7Ah/month
  • Ambient Temperature: -20ËšC to +50ËšC (- 4°F to +122°F)
  • Battery Types: All types of lead-acid batteries, 12V, WET, MF, Ca/Ca, AGM, EFB, GEL, LiFePOâ‚„   
  • Battery Capacity: 28-800Ah
  • Warranty: 2 years
  • Insulation Class: IP65

IN THE BOX

  • 1 x CTEK Smartpass 120S

SIZE & WEIGHT

  • Carton Weight: 0.9kg
  • Product Dimensions (W x ? x H): 11 x 19 x 6.5cm
  • Product Weight: 0.7kg

SKU: CTEK-40-289


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 cancelled 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: 23378096831

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4.3 ★★★★★
Based on 26 reviews
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Product Reviews
C
Verified Purchase
Countleo
Alexandria, US
★★★★★ 5
great specialty socket
Size: 36 mm, Color: Red
well made, nice to have for my Ford 6.0L
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 28, 2026
B
Verified Purchase
Bob Bob
Lowell, US
★★★★★ 5
Makes oil changes easy!
Size: 32 mm, Color: Red
Fits perfectly for oil filters used on an 8th Gen Honda Accord and a 2005 scion XA. It's easy to use and saved a lot of time. I used to have to struggle getting the oily filter out and using this tool speeds things up! Great buy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2025
M
Verified Purchase
Mountain Man
Houston, US
★★★★★ 5
Works great on 36mm filters
Size: 36 mm, Color: Red
Works great on gmc 3.0 diesel fuel filter
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 7, 2026
J
Verified Purchase
Joe Baumgartner
San Leandro, US
★★★★★ 5
Must need socket for doing oil changes
Size: 32 mm, Color: Red
This is exactly what i was looking for. Now it makes doing my oil changes much quicker to do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
R
Verified Purchase
Ryan
Port Orchard, US
★★★★★ 5
Works great, do the double drain for best results
My 06 Altima (185k miles) had been burning massive amounts of oil (like 4 quarts every 800 miles) due to a leaking PCV valve hose that took forever for me to narrow down (months). So after getting that under control I figured I needed to decontaminate the poor engine. When using this I idled my car to operating temp (about 8 minutes). Poured the bottle in, idled it for another 15 minutes. Drained the oil (black and thick). Put the plug back in, poured about 2.5qts of new oil in. Idled it for 10 minutes. Drained that (black but much thinner). Took the old filter off. Let both areas drain for 10 minutes. Put the plug back in, put the new filter on and filled with the 4.6qts of new oil my car calls for. Ran for a few minutes (like 2 with a few revs) and then let sit for 10 mins before checking the level. When I checked my dipstick it was so clean I thought I had a leak because I couldn't see it on any of the crosshatch. I ended up having to go by touch to get the reading. This stuff is amazing.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025

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