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CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power

CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power

Item # CTEK56353
Our Price: $177.49
Battery Charger
This item qualifies for Free Shipping
Shipping Weight: 3 lbs
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This powerful, all-weather eight-step charger uses a patented, pulse-maintenance system to charge, maintain and help recondition 12V batteries. Backup power supply allows you to change vehicle batteries without losing complicated program settings. 1-636-306-4830 to order CTEK Power Inc battery charger part number CTEK56353 or order online at etrailer.com. Free expert support on all CTEK Power Inc products. Great prices and Fastest Shipping for CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power. Battery Charger reviews from real customers.
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CTEK Power Inc Battery Charger - CTEK56353

  • Car/Truck/SUV
  • Motorcycle
  • Trailer
  • Lawn Mower
  • Jet Ski
  • Battery Charger
  • 12V
  • CTEK Power Inc
  • Wall Outlet to Vehicle Battery
  • 150 Ah
  • Charges/Maintains

This powerful, all-weather eight-step charger uses a patented, pulse-maintenance system to charge, maintain and help recondition 12V batteries. Backup power supply allows you to change vehicle batteries without losing complicated program settings.


Features:

  • Reliable, maintenance-free, 8-step system constantly monitors and maintains 12V battery charge
    • Won't overcharge or undercharge like common trickle chargers
    • Switches automatically to pulse-maintenance phase when full charge has been reached
    • Reduces risk of overheating, sulfation and premature battery failure
    • Makes use of an internal power supply during battery changes to preserve your vehicle settings
    • Restores the power capacity of stratified batteries w/ special Reconditioning Mode
  • Easy-to-use, quick-disconnect system
    • Includes 2 battery-cable attachment systems w/ Comfort Connect end plugs - charger plugs right in
      • Eyelet-terminal cable permanently attaches to battery terminals
      • Clamp-terminal cable temporarily clamps to battery terminals
  • Safe, versatile design
    • Approved for indoor and outdoor use
    • Prevents reverse-polarity mistakes
  • Convenient accessories (sold separately) provide additional security and convenience
    • Know your battery's charge level at a glance w/ optional LED-indicator battery cable
    • Reduce the hassle of charging multiple vehicles w/ additional battery-hookup cables


Specs:

  • Application: most starter and deep-cycle, 12V, lead-acid batteries - including wet, MF, AGM and most gel batteries
    • Charges batteries w/ capacities from 14 Ah - 150 Ah
    • Maintains batteries w/ capacities up to 225 Ah
  • Charge cycle: 8-step, fully automatic charger w/ pulse maintenance and Reconditioning Mode
  • Dimensions: 8-1/2" long x 3-1/2" wide x 1-7/8" tall
  • Includes:
    • 12V Battery charger (w/ 5' battery-connection cable and 6' power cord attached)
    • 1 Set of 16" battery cables w/ battery-terminal clips
    • 1 Set of 16" battery cables w/ M10 (10.5-mm) eyelet terminals
    • Owner's manual
    • Protective case
  • 5-Year warranty


CTEK MULTI US 7002 bulk charging time chart

This CTEK charger comes w/ two battery cables: one w/ clamp terminals and one w/ eyelet terminals. The 16" eyelet-terminal cable can be left attached to the battery, and the clamp-terminal cable is great for temporary connections.



CTEK MULTI US 7002 wiring cable w/ clamp and eyelet cables

Whenever you want to charge the battery, just plug CTEK's patented Comfort Connect attachment terminal into the receiving end on either of the provided battery cables.

CTEK MULTI US 7002 wiring cable w/ clamp terminals

CTEK MULTI US 7002 Charging Process

Superior and safe, this eight-step process (plus Supply Mode) uses switch-mode, pulse-maintenance technology.

  1. Desulfation stage is the initial charging phase. This stage uses electronic pulses to desulfate batteries by converting lead sulfate crystals back to usable sulfuric acid.
  2. Soft-start stage tests the battery to see whether it can be charged. If the battery is unable to hold the initial charge, the unit goes into Error Mode, alerting you that your battery must be replaced.
  3. Bulk stage is the main charging phase. This stage accounts for 80 percent of the charging process and uses a constant charge level.
  4. Absorption stage completes the charge (to virtually 100 percent) using diminishing current to prevent battery damage.
  5. Analysis stage kicks in if the pre-set maximum time needed for absorption is exceeded. The unit measures the battery voltage and stops the charging process, automatically lighting an error indicator if the battery is faulty.
  6. Recond mode is used to recondition a battery that has been severely discharged. After the battery has been charged in Normal Mode and analysis has been completed, the charger reconditions the battery w/ a constant current of 1.5A and a maximum voltage of 15.7V for up to 4 hours.
  7. Float-maintenance stage maintains a constant voltage of 13.6V during the first 10 days.
  8. Pulse-maintenance stage begins after the 10 days of float maintenance. This long-term stage maintains the battery at the optimum charge level of 95 to 100 percent by recognizing any drop in voltage and sending a corresponding pulse of current to keep the battery properly charged. Pulse maintenance can be continued for months at a time.

Supply mode - available only on this CTEK model - provides backup power to your vehicle while the battery is being changed. No more tiresome system resetting after battery changes.

CTEK US 7002 charging process chart

A goof-proof design distinguishes CTEK's new-generation chargers from the competition - you don't have to be a mechanical guru to keep your battery working at top efficiency. CTEK's patented charging system monitors your battery, providing exactly the charge it needs during each unique charging stage!

Protects the User

Your personal safety is paramount, and CTEK's spark-free, short-circuit-proof design incorporates a feature that prevents reverse polarity, keeping you safe. You simply cannot make a polarity mistake: The charger will not operate if it is attached incorrectly. In addition, the red alarm light on the charger alerts you if there is a reverse-polarity problem.



Protects the Battery

CTEK's patented, switch-mode, pulse-maintenance charging system is scientifically engineered to safely charge your battery by employing the most up-to-date technology. Using carefully monitored, low-grid voltage, CTEK's patented process differs from competitors' chargers in its ability to provide the precise final voltage that your battery needs to maintain optimum charge level. This sophisticated, interactive device will never overcharge or undercharge your battery. You may leave it attached to the battery for months, making it perfect for seasonal vehicle storage.

Won't cause overcharging or overheating. These together can cause gassing and excessive acid concentration that shortens the life of the battery by corroding the lead plates. When overcharged, the battery cells become dried out. Electrolytes "boil dry," generating excessive heat that can cause a fire.

Won't cause undercharging or sulfation. Undercharging can be just as damaging to your battery as overcharging because chronic undercharging leads to sulfation. Sulfation occurs when the lead and lead dioxide of the battery's plates react w/ sulfuric battery acid to produce lead sulfate. This in turn is converted back to lead, lead oxide and sulfuric acid. A small, unavoidable amount of sulfation and gassing naturally takes place as a result of the chemical processes occurring in lead-acid batteries. However, extensive undercharging causes extra lead sulfate to accumulate on the lead plates of the battery. Because the crystalline form of the sulfate cannot hold an electrical charge, excessive sulfation greatly diminishes the charging ability of the battery, eventually rendering it unusable.

Provides desulfation w/ a patented process. Desulfation is the reversal of sulfation damage. The CTEK charger's unique process not only prevents the undercharging that produces excess sulfation, it also includes a desulfating step that can often "revive" a lightly sulfated battery. It accomplishes this w/ carefully monitored electronic pulses of energy that help to break down the lead sulfate crystals, allowing the battery to accept charge once again.

Ensures consistent charging w/ low ripple-wave percentage rate. Ripple-wave percentage is the quantity of disturbances exhibited in current and voltage. Even minor variations in household current can cause undercharging or overcharging, but CTEK's low-ripple design regulates the incoming current before passing it on to your battery. This process can cause the charger to be a little slower than linear chargers but results in a healthier, more productive, longer-lasting battery.



Protects the Vehicle and Its Electronics

The charger is also safe for your vehicle. Its sophisticated circuitry is designed to be compatible w/ today's sensitive electronics and audio equipment. You can confidently charge your battery while it is still in the vehicle: no more hefting heavy batteries! CTEK's low ripple rate eliminates the danger of damaging electronic devices connected to the battery, and it prolongs the battery's service life. If you must replace your battery, the Supply Mode provides backup power to your vehicle's systems when you remove or replace the battery, sparing you the hassle of resetting your controls.

Closeup of indicator panel w/ descriptions

Indicator lights on the face of the charger light up to show the current charging stage.

Additional Specs:

  • Model: 56-353 (MULTI US 7002)
  • Input voltage: 100 VAC - 120 VAC, 50 Hz - 60 Hz
    • Output power is reduced at lower input voltage; a perfect charge will still be achieved
  • Maximum current demand 2.0A rms (at full charging current)
  • Charging current: 7A max
  • Back current drain: less than 3 mAh per month
  • Charging voltage: 15.7V
    • Nominal charging voltage: 12V
  • Ripple wave: less than 2 percent variance (max 150 mV rms, max 0.3A)
  • Battery cable fuse: 15A
  • Ambient temperature: -4 degrees F to +122 degrees F
    • Automatic reduction of power at increased ambient temperature
  • Cooling: natural convection
    • Do not cover the charger


56-353 CTEK MULTI US 7002 12V 8-Step, Pulse-Maintenance, Universal, Lead-Acid Battery Charger

Installation Details CTEK56353 Installation instructions



Customer Satisfaction Score:


Customer Reviews

CTEK MULTI US 7002 12-Volt Universal Battery Charger w/ Pulse Maintenance and Backup Power - CTEK56353

Average Customer Rating:  4.9 out of 5 stars   (85 Customer Reviews)

This powerful, all-weather eight-step charger uses a patented, pulse-maintenance system to charge, maintain and help recondition 12V batteries. Backup power supply allows you to change vehicle batteries without losing complicated program settings.

by:

Excellent product, keeps my deep cycle battery up to charge.


Comments
Still works great, no issues.
Mike N - 04/03/2016


by:

This charger has worked flawlessly on a set of 4 golf cart batteries paired in series for a 12 volt system used on my RV. It is easy to operate and durable. Instructions are easy to understand. The easy clip exchange between battery clips vs. screw down rings makes it easy to switch over to other batteries, such as for my boat, for a quick charge.




by:

I purchased a C Tek battery charger and it is much more advanced than the
Battery Tenders that I have used for years. While the Battery Tenders do a
good job of keeping a battery up, the C Tek can in some cases restore a battery
that is sulphated. I like it as it is also a power supply if you want to change
your battery and not loose the settings in your car.




by:

I purchased this same unit about 10 years ago and have had good experience with it. It is still in good working order so when I developed the need for an additional unit I opted for the same mfg.
My only concern is ordering from an authorized distributor in order to maintain the mfg warranty.
Ordering from etrailer web site was a little confusing at the point of placing the order and I wasn’t sure if the order was actually submitted until I received a confirmation later that day.
Delivery time was out the door same day. I would order from this distributor again in the future.




by:

We have used the C-Tek chargers for many years for vehicle prototype development, and it is the only brand and model that we use.
Our normal supplier did not have this item in stock.
I searched online for someone who could supply our needs as we were behind on a project.
Etrailer had this item in stock. They offered great customer service and fast shipping. We ordered 4 chargers.
We will start using Etrailer.com in the future for the C-Tek and other items.


Comments
Great
Scott - 02/28/2019


by:

Without a doubt the best charger I have ever owned. I use this charger on all three of my vehicles. Plus my motorcycle and garden tractor.
Note:
Just wish there was an accessory that allowed me to charge both batteries on my diesel truck at the same time.




by:

Great charger...works perfectly




by:

Excellent product does as advertised. I read a comment from one of the eTrailer experts that this battery charger can provide 12VDC as a power supply. Hooked it up and it does exactly what I need - providing shore power a few lights and fans in my cargo (motorcycle) trailer.




by:

This is my second purchase for etrailer. The service has been excellent each time, and the quality of the products is also excellent.
The CTEK battery charger is easy to use. I have used it on Optima batteries, which don't charge as well on conventional chargers. It works great. Just hook it up, and it stops when it is finished.




by:

Works well & the display provides a good status of progress being made in charging. I used on my RV with 3 12V batteries




by:

After destroying several batteries with other brands, I only use CTEK .




by:

Like that it has connections to charge various types of batteries. First use was a camper battery and it charged quickly. etrailer has always provided good service also.




by:

Great chargers. Seems like the plastic used in the proprietary connectors could be better quality. Otherwise doing a great job keeping batteries in good shape.




by:

I have had great luck with Ctek chargers.

E-trailer is always a great vendor tobpurchase from.




by:

Product is as advertised and customer service/delivery is great. I would recommend this company to anyone




by:

Excellent product - replaced a CTEK 3300. I will likely replace 3 more CTEK 3300 with the CTEK 7002. Great service by Shaun on the phone who enabled shipping overnight when I really needed it. Very courteous and professional. Thank You !!!




by:

Been using this charger for a year now, and it has worked like a charm. money well spent




by:

This little device has been a game changer.....easy to install, easy to use - recommend!




by:

Great charger at a great price. Delivery was as scheduled complimenting the great service.




by:




by:

Good product




by:

Have not had the chance to use it but I like the advance technology. Better than the rest.




by:

Excellent product but Made In China. r>




by:

Works well




by:

Very good product at very good price



25
85
Show More Reviews

See what our Experts say about this CTEK Power Inc Battery Charger

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    The great thing about CTEK chargers like the CTEK MULTI US 12-Volt Universal Battery Charger w/ Pulse Maintenance # CTEK56353 is that you can basically leave them on all the time and not worry about anything bad happening to the battery or the charger. The charger is smart enough that it can be left on a battery for an indefinite amount of time and it will always make the right choice on whether to "float" or "pulse" to keep the battery in it's best shape. In steps 7 and 8 the charger...
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    The auxiliary battery in your trailer should be connected to the 12V accessory circuit which is in the one o'clock position as you can see by the diagram I added. That will only provide a maintenance charge to that battery, however; your auxiliary battery will need to use a charger such as the CTEK MULTI US 7002 12-Volt Universal Battery Charger with Pulse Maintenance and Backup Power # CTEK56353 to keep your auxiliary battery charged.
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  • Troubleshooting CTEK Charger Stuck on Stage 2
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