CTEK CT5 TIME TO GO NA 12 V charger kit review

The CT5 TIME TO GO BATTERY CHARGER KIT NA is a separate North American retail configuration, item 40-687, built around the same CT5 TIME TO GO charger sold as item 40-255. The kit is not a higher-output or multi-bank version: the included charger remains a portable one-output 12 V lead-acid unit, with the same conservative 4.3 A rating and 20–160 Ah range. The point of this package is the connection/protection accessories and the staged countdown display, not a different charging circuit. This is a source-based package assessment, not a physical box inspection.

What changes from the standalone charger

The exact U.S. kit page names the CT5 TIME TO GO, a quick-connect accessory, a silicone protective cover and battery clamps. The product-sheet file linked from that page itemizes the bundle in more detail: an INDICATOR EYELET M8, CONNECT CLAMP, BUMPER 60 and CS STORAGE CASE, alongside the charger. The exact page and older 2024 sheet do not reconcile every component description or current-box contents. The pictured original kit package likewise shows the charger, eyelet and Connect Clamp, bumper and case, but a marketing image cannot prove that every seller's current box is complete. Confirm the item 40-687's actual accessory list and connector type before ordering.

For a buyer who intends to keep a quick-connect eyelet on the car battery, a compatible clip-on connection can make repeated maintenance less fiddly than attaching loose clamps each time. A bumper can protect the charger body from contact with the surrounding work area, and a storage case is useful for keeping a portable kit together. These are package conveniences, not evidence that the charger can be used in wet weather, left in a hot engine bay or permanently wired into a vehicle. The included charger remains portable and requires a household AC outlet.

Same countdown, same capacity and current limits

The kit page and its linked sheet repeat a 20–160 Ah 12 V lead-acid rating and a 4.3 A output for the CT5. Its display moves through TRY, GO and CARE states: TRY allows one start attempt; GO marks the manufacturer-described ready-to-use stage around 80 percent; CARE marks full charge and maintenance. The time-to-go LEDs are estimates, not a reservation that the car will be ready at an exact minute. CTEK's model-family FAQ says the remaining-time estimate is less accurate below 20 Ah. This kit does not add a new battery-size range or charging mode compared with the base charger.

The base page's headline copy briefly calls the charger “5A,” but its detailed table, linked North American manual, U.S. sheet and kit sheet identify 4.3 A. Use 4.3 A for comparison and follow the battery maker's allowed rate. Supported chemistries are lead-acid types—WET/flooded, EFB, maintenance-free, Ca/Ca, AGM and GEL—not lithium. Its dedicated Recond procedure applies to the manual's specified WET/EFB/Ca-Ca types within the stated Recond range; it should not be casually selected for AGM or GEL. CARE maintenance after full charge is a different task from recovery charging.

Questions the bundle does not solve

Extra accessories do not create an independent charging bank, another 4.3 A output, an onboard charger arrangement, a jump-start function or general-purpose 12 V device power. The manual's 2.0 V minimum start threshold also means a profoundly discharged or damaged battery may not be recognized; do not buy the kit on an assumption that it will revive any dead battery. Nor should the TIME TO GO estimate be treated as a battery-health report. CTEK's other MUS 4.3 TEST&CHARGE has separate battery, starting-power and alternator test modes; the kit's differentiator is packaging, not those test functions.

The exact charger instructions still govern setup: connect using the vehicle maker's specified ground point, ventilate the charging area and do not charge a frozen or damaged battery. The North American manual says not to expose the charger to rain or snow and not to extend the charge cable. IP65 does not override those instructions. These constraints matter even if the bundle includes a storage case or rubber bumper; those accessories protect the device during handling, not during outdoor charging.

Who should pay attention to item 40-687?

This configuration merits consideration when the CT5's countdown display fits a 12 V lead-acid battery within 20–160 Ah and the exact kit's permanent eyelet/quick-connect, cover or carry/storage extras are useful. If those accessories are already owned, compare item 40-255 instead and do not assume the kit changes battery performance. If a long cable, a different connector or guaranteed replacement parts matter, compare the current seller's box list with the official sheet and ask which edition is being supplied. The article makes no claim about current retail stock or price.

Primary evidence: CTEK's exact U.S. item 40-687 kit page and its linked U.S. product sheet, checked against the base item 40-255 page and North American manual. Read the answer guide for the same-condition choice and open the 12 V lead-acid finder for every currently reviewed model.