Battery Tender Junior automatic battery charger and maintainer with cables and alligator clips.
Close-up of Battery Tender Junior automatic battery charger and maintainer, 12V 750mA.
Close-up of Battery Tender Junior charger cables with red and black alligator clips.
Battery Tender Junior automatic battery charger and maintainer, 12V 750mA.
Battery Tender Junior charger cables with alligator clips and ring terminals.
Side view of Battery Tender Junior charger showing indicator light function and plug.
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Battery Tender 12V Battery Charger 021-0123 - Automatic Maintainer

In stock
Batteries & Jump Boxes

Battery Tender 12V Battery Charger 021-0123 - Automatic Maintainer
Brand Battery Tender
Color Black/Green
Product Dimensions 1.3"D x 2.4"W x 3.3"H
Item Weight 1.8 Pounds
Output Voltage 12 Volts


  • Battery Tender 12V Battery Charger 021-0123

    Stay Charged:

    Battery Tender chargers and maintainers provide a full charge to your vehicle's battery before switching to float mode, maintaining proper voltage levels for safe, long-term storage.

    Extend Battery Life:

    Compatible with all 12V lead-acid, flooded, AGM, and gel cell batteries. The complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode) optimizes battery power without overcharging or damaging the battery.


    • 12V, 750mA battery charger and maintainer
    • 12-foot output cord
    • Fused-ring terminal harness for hard-to-reach batteries
    • Alligator clip accessory cables
    • 5-year warranty and lifetime customer support

    Simple & Safe:

    • Low maintenance and easy to use
    • Compact size: 3.3 x 1.3 x 2.4 inches, 1 lb (charger only)
    • Spark-proof circuitry ensures no-spark connections
    • Automatic reversed hook-up detection verifies the correct connection

    Monitor Power Levels:

    • Two-color charge status LED light indicates the state of the charge
    • Adaptive charging resumes full charger output power if the battery voltage drops too far under load
    • Automatic charge cycle switches to float mode after fully charging the battery

    Keep your battery fully charged and extend its life with the reliable Battery Tender 12V Battery Charger 021-0123. Order now for hassle-free battery maintenance!

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When you buy from AFA Motors, you can rest assured that you'll get the right part for your vehicle, or we'll make it right.

Free Return Shipping on Exchanges

We'll pay for the return shipping on exchanges for all orders (even gifts with proof of purchase).

Plus every purchase comes with our 1-year lower price guarantee and expert service from our team of Gearheads.

It's our commitment to you, exclusively from

Some restrictions apply. See terms below.

How to Return an Item

Step 1: Start a Return from Your Online Account

Please log in to your account. Locate and click on your order under Order History. Find the item you wish to return or exchange and click on Return Item to submit your request.

Step 2: Receive a Return Authorization Number (RMA#)

One of our customer care specialists will provide you with:

  • An RMA#
  • An email with detailed return shipping instructions

Step 3: Pack & Ship

Pack everything that came with the product using its original packaging.

  • Affix the return shipping label that we provided to the package. If we didn't provide you with a return shipping label, make sure to include the RMA# on the package.
  • Ship the package to the address specified in the email you received from Step 2.

Step 4: Receive Your Refund or Exchange

After we receive your package, we'll process your refund or exchange immediately. You can expect to see the refund, less any applicable restocking fees, credited within 5-7 business days, to the payment method that you used when you originally placed your order. If you selected an exchange, we will ship you replacement item out immediately.

Restocking Fees

All returns are subject to a 20% restocking fee.

We'll waive the restocking fees if we made a mistake or if the product was delivered defective.

We'll also waive the restocking fee if you decide to exchange your product with another purchase.

Frequently Asked Questions

Which products can be returned or exchanged?

Most products can be returned within 30 days of purchase, provided it is returned in original packaging and the items are in new and unused condition. We reserve the right to charge up to the full value of the product for items not received in this condition.

Products that cannot be returned or exchanged:

  • Some products, including, but not limited to, custom patterned and custom, and painted items are not returnable
  • Products that shipped via freight, typically oversized and heavy items.
  • Products that have been installed on your vehicle
  • Products that have been modified (drilled or altered in any way)

Under what conditions may I return an item?

Defective Product

While we pride ourselves in our partnerships with leading vendors, accidents happen. Call us at (800) 874-8888 option #2 once you've discovered the defect, and we'll straighten it out.

Damaged Product

Occasionally packages in transit can become damaged. Call us right away so we can set it straight.

Incorrect Product

If you've received an incorrect product, or if we've guaranteed fitment on your order, and the product does not fit your vehicle, give us a call at (800) 874-8888 and select option #2, and we'll start the return process for you.

Lost Package

If your tracking information says delivered, but you haven't received your package yet, let us know. We will work with the carrier to get to the bottom of it.

Do I have to pay for return shipping?

Returns happen, and we're here to make the experience easy! In most cases, you are responsible for return shipping, but we can offer you a discounted return shipping label. If your item arrived defective or we made a mistake, we will happily take care of the return shipping.

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