Battery Tender Junior
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Battery Tender Junior
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Deltran Battery Tender Junior

Part No. 021-0123 Warranty Details  
Battery Tender junior’s lightweight, compact size makes it ideal for those hard to fit spots. Batteries are constantly maintained and ready to go!

Complete 4-Step, constant Current - Constant Voltage Charging Program
  1. Qualification (Ensures safety by verifying acceptable batter status prior to beginning bulk charge)
  2. Bulk Charge (Constant Current safely raises battery voltage to
  3. recommend absorption level)
  4. Absorption Charge (Holds Constant Voltage to ensure that current continues to fully charge the battery)
  5. Float Charge (Maintains fully charged battery at a safe constant voltage for maximum battery life)

Product Features:
  • Reverse polarity protection ensures safety
  • Spark Proof
  • 12ft foot output cord
  • Weight 1lb.
  • Plastic Enclosure
  • Input: 115 VAC @ 60Hz
  • Output: 12 Vdc @ 750mA
  • 5 year warranty
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REVIEW SNAPSHOT®

by PowerReviews
DeltranBattery Tender Junior
 
4.8

(based on 16 reviews)

Ratings Distribution

  • 5 Stars

     

    (13)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Versatile (5)
  • Can withstand use (4)
  • Improves performance (4)

Cons

No Cons

Best Uses

  • RV (7)
  • Garage (6)
  • Truck (6)
  • Car (5)
  • Motorcycle (3)
    • Reviewer Profile:
    • Auto enthusiast (9), Mechanic (6), Truck enthusiast (3)

Reviewed by 16 customers

Displaying reviews 1-10

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5.0

Reliable

By 

from New York

About Me Midrange Shopper

Pros

  • Accessible
  • Easy To Use
  • Handy
  • Portable

Cons

    Best Uses

    • Jeep

    Comments about Deltran Battery Tender Junior:

    When I heard the weather was to be down towards -30 degrees Fahrenheit, I rushed out to buy this.It helps me to be reliable getting to work each day, no matter what the weather.It gives me peace of mind.

    • I Am A:
    • Family Older Kids

    Comment on this reviewHelp Icon(earn points)

    (2 of 4 customers found this review helpful)

     
    5.0

    Excellent product, recommended

    By 

    from NJ

    About Me Auto Enthusiast, Mechanic

    Pros

      Cons

        Best Uses

        • Car
        • Garage
        • Keep In The Trunk
        • RV
        • Truck

        Comments about Deltran Battery Tender Junior:

        I have a long term storage vehicle sparingly used. The battery was getting drained down so I decided to purchase this product after reading the reviews. The charger is easy to use and is well made. There is a quick disconnect for the wire leads. The 12' cord length is a nice touch and makes it a snap to use. The directions are clear and simple to follow. It brought the battery up to snuff overnight. Highly recommended.

        Comment on this reviewHelp Icon(earn points)

        (5 of 9 customers found this review helpful)

         
        5.0

        I GOT ALL CHARGED UP

        By 

        from COLUMBUS, OHIO

        About Me Auto Enthusiast

        Ask me a question

        Verified Buyer
        Level 2

        Pros

        • Exactly as described

        Cons

          Best Uses

          • Car
          • Garage
          • RV
          • Truck

          Comments about Deltran Battery Tender Junior:

          THIS PRODUCT IS SIMPLY TO USE AND HIGH QUALITY.

          Comment on this reviewHelp Icon(earn points)

          (2 of 4 customers found this review helpful)

           
          5.0

          I will buy this product again

          By 

          from Sarasota Fl

          About Me Auto Enthusiast, Competitive Driver, Mechanic, Truck Enthusiast

          Verified Buyer
          Level 1

          Pros

          • Improves Performance

          Cons

            Best Uses

            • Car

            Comments about Deltran Battery Tender Junior:

            Keeps my batteries charged

            Comment on this reviewHelp Icon(earn points)

            (2 of 4 customers found this review helpful)

             
            5.0

            Great Little Charger

            By 

            from Covington

            About Me Auto Enthusiast

            Verified Buyer
            Level 1

            Pros

            • Versatile

            Cons

              Best Uses

              • Car
              • Garage
              • Truck

              Comments about Deltran Battery Tender Junior:

              Great Little Charger. Keeps my truck Battery charged and ready to go.

              Comment on this reviewHelp Icon(earn points)

              (2 of 6 customers found this review helpful)

               
              5.0

              Very good product!

              By 

              from Newport NH

              About Me Motorcycle Enthusiast

              Verified Buyer
              Level 1

              Pros

              • Can Withstand Use
              • Charge All Winter
              • Don't Have To Worry About
              • Versatile

              Cons

                Best Uses

                • motorcycle

                Comments about Deltran Battery Tender Junior:

                put 2 motorcycle batteries in the basement hooked up chargers to both and forget about them will be maintained all winter

                Comment on this reviewHelp Icon(earn points)

                (8 of 13 customers found this review helpful)

                 
                4.0

                Works OK

                By 

                from Oakville, MO

                About Me Auto Enthusiast

                Ask me a question

                Verified Buyer
                3 or more reviews submitted

                Pros

                  Cons

                    Best Uses

                    • Car

                    Comments about Deltran Battery Tender Junior:

                    Becase I don't use my Boxster much, I need some way to keep the battery fresh, clocks set, radio set.... and this bad boy does the job!

                    Comment on this reviewHelp Icon(earn points)

                    (3 of 8 customers found this review helpful)

                     
                    5.0

                    Works great.

                    By 

                    from New Smyrna Beach, Florida

                    Verified Buyer
                    Helpful Reviewer

                    Pros

                    • Easy to use

                    Cons

                      Best Uses

                      • motorcycle

                      Comments about Deltran Battery Tender Junior:

                      Took it out of the package, chose the correct adapter and plugged it right it. Only took seconds.

                      Comment on this reviewHelp Icon(earn points)

                      (10 of 15 customers found this review helpful)

                       
                      5.0

                      all ways works great

                      By 

                      from middletown,ct

                      About Me Auto Enthusiast, Mechanic

                      Verified Buyer
                      Level 2

                      Pros

                      • Can Withstand Use
                      • Improves Performance
                      • Versatile

                      Cons

                        Best Uses

                        • Garage

                        Comments about Deltran Battery Tender Junior:

                        always working when i need them

                        Comment on this reviewHelp Icon(earn points)

                        (8 of 14 customers found this review helpful)

                         
                        5.0

                        Great Tool

                        By 

                        from Louisville Ky.

                        About Me Auto Enthusiast, Mechanic

                        Verified Buyer
                        Level 3

                        Pros

                        • Handy Easy To Use

                        Cons

                        • None

                        Best Uses

                        • Motorcycle Off Season

                        Comments about Deltran Battery Tender Junior:

                        Connect and forget, keeps batteries at peak performance.

                        Comment on this reviewHelp Icon(earn points)

                        Displaying reviews 1-10

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                        Do you have questions about this product?(earn points for answers!)

                         

                        Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                        13 Questions | 14 Answers
                        Displaying questions 1-10Previous | Next »
                        • Q:

                          does the super smart battery tender junior desulfate batteries
                          Asked on 4/24/2016 by Glen from Maine

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Glen, glad to assist you! I have searched online, but unable to find this information in the manufacturer listing. For further assistance, I would suggest that you contact the Deltran Battery Tender directly at 877.456.7901 and they would be in a better position to help you.

                            Answered on 4/26/2016 by Steve from AAP
                        • Q:

                          will this charger charge a dead battery on my lawn tractor
                          Asked on 2/16/2016 by john from louisa va

                          1 answer

                          • CUSTOMER CARE

                            A:

                            No, John, this Deltran Battery Tender Junior (Part No. 021-0123) does not have the feature to charge a dead battery.

                            Answered on 2/17/2016 by Steve from AAP
                        • Q:

                          I have purchased your AC15 CR. BATTERY GHARGER MAINTAINER. Question: Should I use this product or the BATTERY TENDER BY DELTRAN?

                          I will use this to maintain my 12 volt battery in the car for about 6 months inside my garage. II will not be there to check the operation of the charger, so I need a reliable product with the float feature that will not damage the battery. My Battery is in new fully charged condition.

                          Thank you.
                          Asked on 2/7/2016 by peter from North reading MA (sum). Estero, FL (win)

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hello Peter. Happy to help. Between these 2 charger/maintainers there is very little difference between them. Both are low amperage chargers that have mechanisms inside that will stop the flow when the battery is fully charged then fire back up when it drops.

                            Answered on 2/10/2016 by Panda from AAP
                        • Q:

                          what if my truck has 2 batteries do I need two tenders
                          Asked on 2/4/2015 by colin from naples FL

                          1 answer

                          • CUSTOMER CARE

                            A:

                            I'm happy to help, Colin! The number of Deltran Battery Tender Junior (Part No. 021-0123) battery chargers that are required for a dual battery truck will depend upon your desired usage. If you are choosing to charge the batteries separately out of the vehicle, two could be a better option. If the batteries are intended to be left in the vehicle, only one charger will be required.

                            This product may not produce enough power to properly charge a dual battery setup. The rated output of this device is 750mA. To charge both batteries, even in a trickle charge, more amperage will likely be required. AutoCraft 1.5 Amp Mounted Battery Charger/Maintainer (Part No. SE-1-12S) or a more powerful charger may be a better option for this vehicle. I suggest looking for a microprocessor controlled charger to prevent overcharging.

                            Answered on 2/4/2015 by Heath, ASE Parts Specialist from AAP
                        • Q:

                          Can this charger/tender be used with Lithium Iron batteries?
                          Asked on 10/15/2014 by Aubrey from Texas City, TX

                          2 answers

                          • CUSTOMER CARE

                            A:

                            I'm glad to assist, Aubrey! The Deltran Battery Tender Junior's (Part No. 021-0123) programming is more specifically designed for charging lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell) and is not recommended for use with lithium iron batteries.

                            I spoke with Deltran and was informed that it is recommended to use a battery charger that is the same brand as the battery when charging lithium iron batteries. If you are speaking of one of our Autocraft Lithium Iron batteries, I suggest the AutoCraft 1.5 Amp Mounted Battery Charger/Maintainer (Part No. SE-1-12S). It is designed for use with AGM, lithium and 12V batteries and is microprocessor controlled with float monitoring.

                            Answered on 10/31/2014 by Heath, ASE Parts Specialist from AAP
                          • CUSTOMER CARE

                            A:

                            Good morning, Aubrey! No, the Deltron 021-0123 will not charge Lithium Ion batteries. I do not see any other compatible part available. Per Deltron there is one Battery Tender® Lithium Junior (P/N 022-0198LI) available for this application. You may search for this part in webstore or any Bricks & Mortar stores.

                            Answered on 10/31/2014 by John the Car-Doc from AAP
                        • Q:

                          Is this unit Made In USA?
                          Asked on 3/7/2014 by Tom from Mattawan MI

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Tom, glad to assist you! Advance Auto Parts does sell Made in the USA products as well as products manufactured from many other countries in order to keep our pricing competitive. Please also keep in mind that many suppliers have multiple manufacturing plants that could result in different countries of origin for the same part.

                            Answered on 3/9/2014 by Vincent from AAP
                        • Q:

                          Where exactly do I regitar my product
                          Asked on 1/9/2014 by Dan O

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Good question Dan! There is no need to register for your product. If at all there is an issue you can always contact us at our store or toll free service at: 1-877-ADVANCE (238-2623) and one of our representatives would be glad to assist you further. The order confirmation email would be sufficient for a return or warranty request.

                            Answered on 1/14/2014 by John the Car-Doc from AAP
                        • Q:

                          Can this be used on gel or AGM batteries?
                          Asked on 12/5/2013 by Bike Rider from Morgantown, WV

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Bike Rider, that's a good question too! This Deltran Battery Tender Junior will charge all 12-volt lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell).

                            Answered on 12/6/2013 by Max from AAP
                        • Q:

                          can this be used on riding mower batteries?
                          Asked on 10/4/2013 by jrv

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Jrv, you can use this Deltran Battery Tender Junior - Part No. 021-0123 on riding mower batteries. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                            Answered on 10/7/2013 by Max from AAP
                        • Q:

                          Can this be mounted permanently in the motor compartment ?
                          Asked on 7/14/2013 by brian from ohio

                          1 answer

                          • CUSTOMER CARE

                            A:

                            This Deltran Battery Tender Junior - Part No. 021-0123 is completely automatic and may be connected permanently to both AC power and to the battery that it is charging for long periods of time with your motor compartment. However, it is prudent to periodically check both the battery and the charger for normal operation during these extended charging periods. This part automatically switches to float / maintenance voltage after fully charging the battery. It is spark proof and reverse polarity protected. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

                            Answered on 7/14/2013 by Morgan from AAP
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