Battery Maintainer: Powerful High-Tech Battery Tender Charger

When it comes to car battery chargers or other vehicle battery chargers, what most people think is that they areBattery Maintainer CTEK MULTI US-7002 8-Step Chart View going to hook up the charger to the car battery or motorcycle battery and simply charge it until the battery has enough juice to start.  What they don’t think of is that there is a reason that the battery is low in the first place and usually it’s because the battery was not maintained properly using a battery maintainer or battery tender.

A battery charger is good for getting a battery back up to charge, but in the long run, if you leave your battery unattended for long periods you will want to buy a battery charger that is also a battery maintainer or tender.

Battery maintainers typically run a smart program via a microprocessor that controls the whole charge process and automatically stops charging and goes into a maintenance mode when the battery is fully charged.

There are many great battery tenders around and we’ve got the articles for just about all of them.  Be sure and see our articles:

Regular battery chargers typically don’t do this and so once the battery is charged, the charger may detect and stop charging, but in any event, you should disconnect the charger to prevent damage to the battery or charger.

A battery maintainer will often have a series of steps to its charge process that may include desulphation which can prolong the life of your battery.

Some of the battery charging steps that are common in a good battery maintainer or battery tender are:

  • Desulphation – Possible reconditioning of batteries that have lost power due to non-use
  • Soft Start – Charges until the battery’s terminal voltage has risen to a preset level
  • Bulk – Primary charging step charges battery to a preset charge percentage below full charge
  • Absorption – The final charging state keeps voltage at a preset level
  • Analysis – Charging is suspended and voltage is measured
  • Recondition – Charger feeds a constant current to the battery and maximum voltage
  • Float – Constant voltage is maintained
  • Pulse/Maintenance – Charger sends a pulse of electricity to the battery when its charge falls below a preset limit to keep the battery in perfect condition for prolonged periods


There is one high-tech battery charger and maintainer that has the power to quickly charge your 12V battery while also being capable of maintaining your battery for maximum life and performance.  It’s a great battery charger and tender for car, truck, RV, ATV, marine, and motorcycle batteries.

Battery Maintainer CTEK MULTI US-7002 Front ViewConsidering one of the new Lithium jump starters?  Be sure and check out our posts about some of the best:

Take a look at the CTEK MULTI US 7002 and see if it’s the perfect battery charger and battery maintainer for your needs!

Battery Maintainer: Powerful High-Tech Battery Tender Charger

CTEK (56-353) MULTI US 7002 12-Volt Battery Charger

Battery Maintainer MULTI US-7002 Kit ViewCTEK is a Swedish company known for their high-tech battery chargers including the very capable CTEK (56-353) Multi US 7002 12-Volt Battery Charger.  It’s worth noting that CTEK is also the OEM charger of choice for many of the world’s finest automobile manufacturers.  Its smart microprocessor controls an 8-Step charging process with multiple charging modes that does everything from charge your battery, to telling you if your battery can hold a charge, to making sure it’s healthy and charged when you need it.  Capable of charging and maintaining multiple battery types including lead acid Wet, MF, Gel, and AGM, this may be the last battery charger you need to buy.  Here’s what you need to know.

Features

  • State-of-the-art primary switch mode 12V battery charger with pulse maintenance
  • Multiple charging modes and 8-step charging curve are microprocessor controlled and insure your battery gets the best care possible
  • Preferred mode means you don’t have to know anything about your battery or charging it because the Multi US 7002 takes care of all of that for you automatically without monitoring
  • 8 Steps include Desulphation, Soft start, Bulk, Absorption, Analysis, Recondition, and Pulse/Maintenance Charging
  • Maintenance pulse charging increases battery life and improves performance
  • Recondition Mode is used to recondition batteries that have been severely discharged
  • Multiple modes gives you the flexibility to charge multiple battery types including Wet, MF, Gel, Ca, and AGM
  • All-weather charging thanks to IP65 water and dust resistance as well as a certified temperature use between -4 degrees F and +122 degrees F
  • Low back current drain, low rippled, and input voltage independent
  • Charger can be left for months connection which is ideal for use with seasonal vehicles such as a motorcycles, ATV, boats, and RVs
  • Permanent mounting possible thanks to the charger’s compact size and built-in mounting holes
  • Safe design is spark-free, reverse-polarity, and short-circuit proof
  • 5-Year limited warranty

Accessories

  • 1 – Alligator clamp connection lead
  • 1 – Eyelet terminals connection lead

Pros

  • Can handle tough weather
  • Quality construction and materials
  • Compact size
  • Automatic operation without monitoring

Cons

  • Charge program doesn’t compensate for temperature
  • Relatively slow charging rate
  • Only lights without voltage reading
  • Poor instructions

Battery Maintainer CTEK MULTI US-7002 Review

CTEK Battery Chargers Information Video

Battery Maintainer Comparison Chart

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TitleCTEK 93-56-864 MUS 4.3 Black 12V Battery ChargerCTEK Multi US 3300 12-Volt Smart Battery ChargerCTEK Multi US 7002 12V Battery ChargerCTEK 56-674 Battery ChargerCTEK US 800 12V Smart Battery ChargerCTEK 56-677 Battery Charger
FeatureGreat for multiple vehicles
Patented reconditioning function
Fully automatic
Easy to read display
All Vega products are backed by our 1 year manufacturer defect warranty, the warranty excludes wear and tear, any end-user modification, improper use or abuse, and/or crash damage
Includes two interchangeable connection leads, one with clamps, and one with eyelet terminals
Four step, automatic switch charging and three separate charge modes that together allow for easy, convenient, no-watch battery charging
Charges 12-volt lead-acid batteries (Wet, MF, Gel, AGM and Ca) from 12Ah to 75Ah (charging) or 12-120Ah (maintenance)
Maintenance pulse charging increases battery life and gives superb performance, and patented desulphation functionality allows for the recovery of slightly sulphated batteries
Compact design with mounting holes allows for permanent assembly, making this charger ideal for motorcycles, cars, lawn mowers, jet skis and other vehicle with batteries up to 120Ah
A Great All-Around Charger
Fully automatic - for charging and maintenance
Flexible for different battery needs
Patented desulphation function
Made for all weather conditions and situations
Includes two interchangeable connection leads, one with clamps, and one with eyelet terminals
Eight step, automatic switch charging and four separate charge modes that together allow for easy, convenient, no-watch battery charging
Charges 12-volt lead-acid batteries (Wet, MF, Gel, AGM and Ca) from 14Ah to 150Ah (charging) or 14Ah to 225Ah (maintenance)
Maintenance pulse charging increases battery life and gives superb performance, and patented desulphation functionality allows for the recovery of slightly sulphated batteries
Compact design with mounting holes allows for permanent assembly, making this charger ideal for virtually any vehicle batteries up to 150Ah
Includes two interchangeable connection leads, one with clamps, and one with eyelet terminals
Eight step, automatic switch charging and four separate charge modes that together allow for easy, convenient, no-watch battery charging
Charges 12-volt lead-acid batteries (Wet, MF, Gel, AGM and Ca) from 14Ah to 150Ah (charging) or 14Ah to 225Ah (maintenance)
Maintenance pulse charging increases battery life and gives superb performance, and patented desulphation functionality allows for the recovery of slightly sulphated batteries
Compact design with mounting holes allows for permanent assembly, making this charger ideal for virtually any vehicle batteries up to 150Ah
CTEK BATTERY CHARGER 56-674 BATTERY CHARGER
Brand New in the Box
Installation Instructions Included
Includes two interchangeable connection leads, one with clamps, and one with eyelet terminals; 5 year limited warranty
Four step, automatic switch charging, that allows for easy, convenient, no-watch battery charging
Charges 12-volt lead-acid batteries (Wet, MF, Gel and AGM) from 12Ah to 32Ah (charging), 12-100Ah (maintenance)
Maintenance pulse charging increases battery life and gives superb performance, and patented desulphation functionality allows for the recovery of slightly sulphated batteries
Compact design with mounting holes allows for permanent assembly, and the charger to be connected for months, makes this charger ideal for motorcycles, cars, lawn mowers, jet skis and any other vehicle with batteries up to 100Ah
CTEK BATTERY CHARGER 56-677 BATTERY CHARGER
Brand New in the Box
Installation Instructions Included
Model93-56-864CTEK3300CTEK700256-67456-21356-677
Warranty5 years5 years5 years
Price$66.85$52.15$95.99$187.00$34.31$169.99
Height1.5 inch11 inch6 inch
Weight1 pound2 pound0.1 pound0.1 pound2.16 pound
Width2 inch3 inch2.5 inch
Length6.5 inch7 inch10 inch
Rating0 out of 5 stars0 out of 5 stars0 out of 5 stars0 out of 5 stars0 out of 5 stars0 out of 5 stars
ReviewsRead ReviewsRead ReviewsRead ReviewsRead ReviewsRead ReviewsRead Reviews
LinkMore InfoMore InfoMore InfoMore InfoMore InfoMore Info

Product prices and availability are accurate as of Jul 31 3:12:48 UTC but are subject to change. Any price and availability information displayed on the merchant site at the time of purchase will apply to the purchase of this product.

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Comments
  1. Chris Ridgeway

    Awesome site, awesome reviews, great product comparisons! 5 Stars.

    • Mark Ridgeway

      We’re glad you like the site and hope it’s giving you valauble information!

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