---
product_id: 263648631
title: "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: "¥29070"
currency: JPY
in_stock: true
category: "Battery Tender"
url: https://www.desertcart.jp/products/263648631-junior-12v-750ma-charger-and-maintainer-automatic-12v-powersports-motorcycle
store_origin: JP
region: Japan
---

# 750mA smart charging power Compact 3.3x1.3x2.4 inch design 4-step optimized battery care 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:** ¥29070
**Availability:** ✅ In Stock

## Summary

> 🔌 Stay Powered, Stay Ahead: The Smarter Charger Every Pro Needs

## Quick Answers

- **What is this?** 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?** ¥29070 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/263648631-junior-12v-750ma-charger-and-maintainer-automatic-12v-powersports-motorcycle)

## 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 Design:** Spark-proof circuitry and reverse polarity detection ensure hassle-free, safe connections.
- • **Compact & Lightweight:** Sleek 1 lb charger fits easily in tight spaces—perfect for on-the-go pros.
- • **Smart 4-Step Charging:** Microprocessor-controlled charging optimizes battery health without overcharging.
- • **Universal Compatibility:** Works seamlessly with all 12V lead-acid, AGM, flooded, and gel cell batteries.
- • **Always Ready, Always Charged:** Automatic float mode maintains battery voltage for long-term storage—never get stranded.

## Overview

The Battery Tender Junior 12V, 750mA Charger and Maintainer is a compact, fully automatic smart charger designed for 12V lead-acid batteries. Featuring a 4-step charging process, spark-proof safety, and adaptive float mode, it extends battery life and ensures your powersport vehicles and equipment are always ready to go. Lightweight and easy to use, it’s the essential tool for professionals who demand reliable battery maintenance without the hassle.

## Description

Battery Tender Junior 12V Battery Charger is much more than a trickle charger. It has a brain, is lightweight, compact, fully automatic and very easy to use especially in small spaces. This battery charger will keep the battery fully charged so that it is ready to go always. It has a microprocessor controlled fully automatic charger and maintainer and is designed to extend the life of any lead acid battery commonly used in automobiles, motorcycles, ATVs, personal watercraft, RVs, boats, airplanes, golf carts, back-up generator systems, etc. Any vehicle or battery-operated piece of equipment not used on a daily or regular basis is a candidate for a Battery Tender charger. The advanced technology will bring the battery back to a full charge without overcharging and then float or maintain the battery for an indefinite period of time. The Battery Tender Junior comes equipped with alligator clips and ring terminals for easy hook up. An optional 25 feet extension cord (part number 081-0148-25) is sold separately.

## 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 Amps |
| Battery Charge Time | 1 hours |
| Best Sellers Rank | #31,498 in Automotive ( See Top 100 in Automotive ) #4 in Boat Battery Chargers #131 in Battery Chargers |
| Brand | Battery Tender |
| Built-In Media | Battery Tender 021-0123 |
| Color | Black/Green |
| Compatible Devices | Vehicles and equipment with 12V lead-acid, flooded, AGM, and gel cell batteries |
| Connector Type Used on Cable | crocodile and ring clamps |
| Current Rating | 750 Milliamps |
| Customer Reviews | 4.8 4.8 out of 5 stars (48,182) |
| EU Spare Part Availability Duration | 5 Years |
| External Testing Certification | Não Aplicável |
| Global Trade Identification Number | 00734357000078 |
| Input Voltage | 12 Volts |
| Item Dimensions D x W x H | 7.4D x 5.5W x 11.2H centimeters |
| Item Type Name | BATTERY_CHARGER |
| Manufacturer | Deltran |
| Mfr Part Number | 021-0123 |
| Model Number | 021-0123 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Ports | 1 |
| Specification Met | CSA, ETL, FCC |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Battery Tender
- **Colour:** Black/Green
- **Input voltage:** 12 Volts
- **Product dimensions:** 7.4D x 5.5W x 11.2H centimeters
- **Specification met:** CSA, ETL, FCC

## Images

![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 **Color, Size, Style** options.

## Questions & Answers

**Q: What's the Input Ratings of this device??This is designed for USA use that utilizes 110V for household. What about us using 220~240V?**
A: I haven’t used in our household socket I use it only in 110v caravan

**Q: hi, what is the input voltage 110 or 220?**
A: Hello!
According to the manufacturer specifications, the following information is given:

Input: 100-240 VAC @ 50/60 Hz.
Output: 12 Volts DC @ 5 Amps.
Basically, the input works everywhere in the world. Output is only for 12 V lead acid battery.

Reference:
http://www.batterytender.com/Chargers/Battery-Tender-Plus-High-Efficiency.html

I hope this answers your question. Kind regards.

**Q: Can I use in uae?**
A: Have no idea I haven’t try but you can check the label voltage

## 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
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- 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

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-26*