Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123
Condition: New
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Apr 2 – Apr 10
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Features
- Stay Charged: Battery Tender battery chargers and maintainers provide a full charge to your powersport vehicles battery before switching to float mode to maintain proper voltage levels for safe, long-term storage
- Extend Battery Life: Compatible with all 12V lead-acid, flooded, AGM, and gel cell batteries. Complete 4-step charging program (Initialization, Bulk Charge, Absorption Mode, Float Mode) allows for optimization of battery power, without overcharging or battery damage. Smarter than a trickle charger.
- Includes: 12V, 750mA battery charger and battery maintainer with 12-foot output cord, fused-ring terminal harness for hard-to-reach batteries and alligator clip accessory cables, 5-year warranty, and lifetime customer support
- Simple & Safe: Low maintenance, easy-to-use, universal battery charger is just 3.3 x 1.3 x 2.4 inches, 1 lb (charger only). Spark-proof circuitry ensures no-spark connections, and automatic reversed hook-up detection verifies correct connection
- Monitor Power Levels: Two-color charge status LED light indicates the state of the charge and if the battery voltage drops too far under load, adaptive charging will resume full charger output power. Automatic charge cycle functionality switches to float mode after fully charging the battery
Brand: Battery Tender
Color: Black/Green
Product Dimensions: 2.9"D x 2.15"W x 4.4"H
Output Voltage: 12 Volts
Specification Met: CSA, ETL, FCC
Output Voltage: 12 Volts
Input Voltage: 12 Volts
Current Rating: 750 Milliamps
Amperage: 0.75 Amps
Connector Type Used on Cable: Alligator Clips, Ring Terminals
Number of Ports: 1
Item Dimensions D x W x H: 2.9"D x 2.15"W x 4.4"H
Specification Met: CSA, ETL, FCC
Color: Black/Green
Brand: Battery Tender
Mfr Part Number: 021-0123-CA
Global Trade Identification Number: 78
Manufacturer: Deltran
Model Number: 021-0123
External Testing Certification: Não Aplicável
Item Type Name: BATTERY_CHARGER
Warranty Description: Manufacturer Warranty
Built-In Media: Battery Tender 021-0123
Unit Count: 1.00 Count
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Apr 2 – Apr 10
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
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Top Amazon Reviews
I have had this tender for over 2 years now and of course it works great. The brand is great, it keeps my motorcycle battery alive during the cold season. Easy to use and great value.
Reviewed in the United States on January 1, 2026 by Kolby
HIgh end quality product. Works really well, and saved me from getting stranded because of a dead battery. My OEM battery was about 4 1/2 years old and after using this tender I saw that my battery wasn't holding a charge and was weak. I don't know about others, but trying to start my car and finding out the battery has permanently expired is not a happy experience. I also plan to use it the next time I go on vacation and leave my car in garage. Batteries are always losing their charge, even when there is no drain on them.
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Reviewed in the United States on March 12, 2026 by Joe Black
This product has worked for me. Charges up great.
Reviewed in the United States on March 10, 2026 by Heather Pahlman
A great way to make mower and Ranger batteries last for years. Mower would only last a year before I started using these. It’s lasted almost 3 years now and still works great. Keep batteries water topped off and charged with these trickle chargers. I’ve never had one to fail. A real money saver.
Reviewed in the United States on February 18, 2026 by Nighthauler
These are the best! I have four of them on my, Polaris Ranger, Polaris Sportsman, John Deer Gator and John Deer mower. They work flawlessly! I never worry about them when they're hooked up. I use them all year round without incident. They are small lightweight and super reliable. They are either charging or maintaining the batteries all the time. The are especially useful in the winter. The cold drains a battery and this little guy keeps them charged. The new version comes with alligator clamps (I don't like) and they say you can use the loop holes on the clamp to connect to the battery terminal. Unfortunately those loop holes are too small to go onto a battery terminal. However you can buy Battery Tender "the quick connect ring terminals" with larger loop holes to attach to your battery terminals. I gave it 4 stars due to the newer product not having large loop holes.
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Reviewed in the United States on February 12, 2026 by Otdrsman
top quality and works great .. they large clamps and long cord a big plus ..has a replaceable 7.5 fuse build in ..very safe to keep plugged in too..
Reviewed in the United States on February 26, 2026 by sandysherman
Must have item! This has kept our 12v car battery fully charged and functioning like a champ even in single digit freezing weather. Had to buy one because without it the battery kept dying even after replacing with a new one. No more dead battery issues after several weeks and so relieved that this was all we needed to resolve the issue. Love this charger!!
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Reviewed in the United States on January 31, 2026 by UH
An absolute necessity for motorcycle owners. When it comes time to winterize your bike you gotta keep the battery healthy. This little device was made for that. It has great functionality in that it recognizes the varies charge states and applies the level you need. It’s small and works with most motorcycles. It’s been a great addition to the garage.
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Reviewed in the United States on February 12, 2026 by Steve Blair