Product Specifications for Battery Tender Jr 12 Volt 0.75 Amp Charger and Maintainer with Rings and Clips - 021-0123
| BM Part #: | 021-0123 |
|---|---|
| Brand: | Battery Tender |
| Voltage: | 12 Volt |
| Charging Rate: | 0.75 Amp |
| Length: | 4.45" |
| Width: | 2.15" |
| Height: | 2.9" |
| Shipping Weight: | 2.25Lbs |
| Warranty: | 5 Year |
| Product Manual: | Download |
| Datasheet: | Download |
What's in the box:
- 12V, 750mA battery charger and maintainer with LED status light to show battery status
- Alligator clip combo cable provides quick and easy clip connection to batteries or clips can be removed for ring terminal application
- 5-year warranty and lifetime customer support
- "Set It and Forget It" Technology: Smart 4-step charging (Initialization, Bulk, Absorption, and Float) automatically switches from full charge to maintenance mode to prevent overcharging.
- Optimized for Seasonal Storage: The perfect solution for motorcycles, UTVs, ATVs, and generators that sit idle, keeping the battery at 100% and preventing power-robbing sulfation.
- Ultra-Safe Operation: Features a spark-proof design and reverse polarity protection, ensuring the charger won't activate unless it is correctly connected to the battery.
- Compact & Convenient: Includes a 12-foot output cord, quick-disconnect ring terminals for hard-to-reach batteries, and classic alligator clips for temporary charging.
- At-a-Glance Status: High-visibility LED indicator lights provide instant feedback on your battery’s health and charging status, even from across the garage.
COMPLETE 4-STEP CHARGING
Smart charger technology assures the correct level of power is sent to the battery at all times.
- 1. Initialization determines if the battery is connected correctly and battery's charge level, composition
- 2. Bulk Charge brings the charge up with full charge and constant current
- 3. Absorption Mode slows the charging down until the battery reaches full charge
- 4. Float/Maintenance Mode keeps the battery charged without overcharging or discharging
Product Description
Save Your Battery with the Original Battery Tender Junior
Don't let a dead battery ruin your first ride of the season. The Battery Tender Junior (Part #021-0123) is more than just a 1.55V charger; it is a sophisticated battery maintainer designed to double the life of your lead-acid, AGM, and gel cell batteries. Its compact 750mA output provides a steady, safe charge that is perfect for smaller batteries found in motorcycles, dirt bikes, and portable generators.
The "Junior" is famous for its ISM (Infinite Sequential Monitoring) technology. This system constantly monitors the battery’s voltage and adjusts its output automatically. Once your battery reaches a full charge, the unit seamlessly transitions to "float mode," keeping the battery at its peak without the risk of boiling or drying it out.
Understanding the LED Status Lights:
- Solid Red: The charger is connected and currently in the Bulk charging stage.
- Flashing Green: The battery is greater than 80% charged and is in the Absorption stage.
- Solid Green: Your battery is fully charged and the unit is in Maintenance (Float) mode.
- Flashing Red: This indicates a safety fault (typically reverse polarity or a bad connection).
Why It’s a Garage Essential:
- Generator Ready: Essential for home backup generators that need a 12V "trickle" to ensure they start during the next power outage.
- Power Sports Favorite: Lightweight and small enough to fit in a saddlebag or tool chest, making it the #1 choice for UTV and motorcycle enthusiasts.
- Safety First: The spark-proof circuitry and automatic shut-off mean you can leave it plugged in for months with total peace of mind.
Technical Specifications:
- Brand: Deltran / Battery Tender
- Model Number: 021-0123
- Output: 12 Volts @ 750mA
- Cord Length: 12 Feet
- Warranty: 5-Year Manufacturer Warranty
Invest in the Battery Tender Junior 021-0123 today and stop the cycle of buying new batteries every spring. It’s the simplest, most cost-effective way to keep your vehicles ready for action.
How low of a battery voltage can this charger see and charge?
Deltran's 021-0123 Battery Tender charger can sense voltages as low as 3 volts and go into the recharging mode. It has an 80 hour safety protection feature that will stop the charge if the charge time is longer than 80 hours.
If the battery has been sitting in a dead or extremely discharged state for an extended period of time, the battery may not take a charge due to sulfation built-up on the plates.
Cross Reference & Compatibility
Customer Reviews
This is a great product that I have used for years. I would recommend this for anyone with lawnmower to atv for maintaining battery during non use season.
This product appears very robustly manufactured and is simple to use. The system of charge indication via one light was very much appreciated when I found my battery was still 80% charged and not as bad off as I expected . Small ,simple , affective and stout. Very happy with battery mart and my purchase
Great Product And Fast Serevice
It's exactly what I have been looking for, for a great price .
Great
I am very pleased with this product. I use it to keep my motorcycle charged up so that i can run my mouse blocker running to keep the mice from eating all of my wiring up again.
great product to keep your battery alive and well for many years...
