---
product_id: 764139
title: "Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123"
brand: "battery tender"
price: "€ 96.41"
currency: EUR
in_stock: true
category: "Battery Tender"
url: https://www.desertcart.gr/products/764139-battery-tender-junior-12v-750ma-charger-and-maintainer-automatic-12v
store_origin: GR
region: Greece
---

# 750mA smart charging current 12V output for versatile battery types 5-year warranty + lifetime support Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123

**Brand:** battery tender
**Price:** € 96.41
**Availability:** ✅ In Stock

## Summary

> 🔌 Never get stranded—keep your ride ready with Battery Tender Junior!

## Quick Answers

- **What is this?** Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123 by battery tender
- **How much does it cost?** € 96.41 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/764139-battery-tender-junior-12v-750ma-charger-and-maintainer-automatic-12v)

## Best For

- battery tender enthusiasts

## Why This Product

- Trusted battery tender brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Safety First:** Spark-proof circuitry and reverse polarity detection keep you and your battery safe every time.
- • **Compact & Portable:** Lightweight 1 lb design (3.3 x 1.3 x 2.4 inches) fits anywhere—garage, workshop, or on the go.
- • **Smart 4-Stage Charging:** Optimizes battery health with Initialization, Bulk, Absorption & Float modes—no overcharging, just peak power.
- • **Universal Compatibility:** Works flawlessly with all 12V lead-acid, AGM, flooded, and gel cell batteries—one charger for all your rides.
- • **Intelligent Maintenance Mode:** Automatically switches to float mode to maintain optimal voltage, preventing battery sulfation and extending lifespan.

## Overview

The Battery Tender Junior 12V, 750mA charger is a compact, smart battery maintainer designed for motorcycles, ATVs, and powersports vehicles. Featuring a 4-step charging process and automatic float mode, it safely charges and maintains all 12V lead-acid battery types, extending battery life and preventing sulfation. With spark-proof safety, reverse polarity protection, and a 5-year warranty backed by lifetime support, it’s the trusted choice for hassle-free battery care.

## Description

Buy Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123: Battery Chargers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Stay Charged: Battery Tender battery chargers and maintainers provide a full charge to your powersport vehicle’s 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000CITK8S |
| Amperage | 0.75 A |
| Best Sellers Rank | #360 in Automotive ( See Top 100 in Automotive ) #5 in Battery Chargers |
| Brand | Battery Tender |
| Built-In Media | Battery Tender 021-0123 |
| Color | Black/Green |
| Connector Type Used on Cable | Alligator Clips, Ring Terminals |
| Current Rating | 750 milliamps |
| Customer Reviews | 4.8 out of 5 stars 49,919 Reviews |
| External Testing Certification | Não Aplicável |
| Global Trade Identification Number | 00734357000078 |
| Input Voltage | 12 volts |
| Item Dimensions D x W x H | 2.9"D x 2.15"W x 4.4"H |
| Item Type Name | BATTERY_CHARGER |
| Manufacturer | Deltran |
| Mfr Part Number | 021-0123 |
| Model Number | 021-0123 |
| Number of Items | 1 |
| Number of Ports | 1 |
| Output Voltage | 12 volts |
| Product Dimensions | 2.9"D x 2.15"W x 4.4"H |
| Specification Met | CSA, ETL, FCC |
| Unit Count | 1 Count |
| Warranty Description | Manufacturer Warranty |

## Product Details

- **Brand:** Battery Tender
- **Color:** Black/Green
- **Output Voltage:** 12 volts
- **Product Dimensions:** 2.9"D x 2.15"W x 4.4"H
- **Specification Met:** CSA, ETL, FCC

## Images

![Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123 - Image 1](https://m.media-amazon.com/images/I/61nddgtbkaL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Can I leave this connected to my motorcycle all winter without damaging the battery?**
A: Yes! Battery Tender Junior switches to float/maintenance mode at full charge, offsetting self-discharge to keep at 100% without overcharging or damage. Unlike trickle chargers, it adjusts output to battery needs for safe long-term storage.

**Q: What size batteries can this charge? Is it good for small motorcycle batteries?**
A: Battery Tender Junior 750mA is ideal for 3–30Ah batteries in motorcycles, ATVs, UTVs, scooters, PWCs, and snowmobiles. Safely charges small 3–5Ah batteries overnight and larger 14–20Ah motorcycle batteries in ~14–22 hrs.

**Q: Will the Battery Tender Junior work on my Harley-Davidson?**
A: Yes, Battery Tender Junior works with all Harley-Davidson 12V models, including Sportster, Softail, Dyna, Touring, CVO, and Pan America. The 750mA output is ideal for Harley batteries, and the included harness allows easy plug-in charging.

**Q: What is the difference between this and a trickle charger?**
A: A trickle charger delivers constant current and can overcharge a battery during storage. The Battery Tender Junior is a smart charger that automatically switches to float mode, charging only when needed for safe long-term maintenance.

**Q: Will this charge a completely dead battery?**
A: Battery Tender Junior can recover most deeply discharged batteries using low-voltage recovery during startup. Batteries below 2V or left discharged too long may be permanently damaged. Red LED = charging; flashing red may indicate a bad battery.

## Frequently Bought Together

- Battery Tender Junior 12V, 750mA Charger and Maintainer: Automatic 12V Powersports for Motorcycle, ATVs, and More - Smarter Than a Trickle Charger - 021-0123
- Battery Tender Ring Terminal Harness Accessory Cable - 18 inch Cord Adapter with SAE Quick Disconnect - Easy Quick Convenient for Motorcycles, Cars, ATVs and More - 081-0069-6
- Battery Tender Quick Disconnect USB Charger Adapter - Easily Charge Mobile Devices with 12V Vehicle Battery on The Go - Perfect for Camping Our Outdoor Adventures - 081-0158

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.gr/products/764139-battery-tender-junior-12v-750ma-charger-and-maintainer-automatic-12v](https://www.desertcart.gr/products/764139-battery-tender-junior-12v-750ma-charger-and-maintainer-automatic-12v)

---

*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-14*