---
product_id: 144341349
title: "Battery Tender 021-0123 12-Volt Battery Tender(R) Junior"
brand: "battery tender"
price: "S$201"
currency: SGD
in_stock: true
category: "Battery Tender"
url: https://www.desertcart.sg/products/144341349-battery-tender-021-0123-12-volt-battery-tender-r-junior
store_origin: SG
region: Singapore
---

# 0.75 Amps steady charge 12V optimized output Proudly made in USA Battery Tender 021-0123 12-Volt Battery Tender(R) Junior

**Brand:** battery tender
**Price:** S$201
**Availability:** ✅ In Stock

## Summary

> 🔌 Stay charged, stay ahead – never miss a beat with Battery Tender Junior!

## Quick Answers

- **What is this?** Battery Tender 021-0123 12-Volt Battery Tender(R) Junior by battery tender
- **How much does it cost?** S$201 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/144341349-battery-tender-021-0123-12-volt-battery-tender-r-junior)

## 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

- • **Reliable Power Boost:** Delivers a consistent 0.75 Amp charge to keep your battery healthy and ready.
- • **Compact & User-Friendly:** Sleek black design with a single port for hassle-free, plug-and-play operation.
- • **Highly Rated by Thousands:** Join over 48,000 satisfied users who trust this charger with a stellar 4.8-star rating.
- • **Perfect 12V Compatibility:** Engineered specifically for 12-volt batteries, ensuring optimal performance every time.
- • **Trusted American Craftsmanship:** Manufactured in the USA, combining quality and durability you can count on.

## Overview

The Battery Tender 021-0123 Junior is a compact, 12-volt battery charger delivering a steady 0.75 Amp output. Made in the USA and highly rated by over 48,000 users, it offers reliable, efficient charging for vehicle batteries with a simple, single-port design.

## Description

BATTERY TENDER 021-0123 12-Volt Battery Tender(R) Junior

## Features

- Best Quality
- Battery Tender

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000CITK8S |
| Amperage | 0.75 Amps |
| Brand Name | Battery Tender |
| Colour | Black |
| Country of Origin | USA |
| Customer Reviews | 4.8 4.8 out of 5 stars (48,123) |
| External Testing Certification | Não Aplicável |
| Global Trade Identification Number | 00734357000078 |
| Input Voltage | 12 Volts |
| Manufacturer | BATTERY TENDER |
| Manufacturer Part Number | 021-0123 |
| Model Number | 021-0123 |
| Number of Ports | 1 |
| Output Voltage | 12 Volts |

## Product Details

- **Amperage:** 0.75 Amps
- **Brand:** Battery Tender
- **Colour:** Black
- **Input Voltage:** 12 Volts
- **Output Voltage:** 12 Volts

## Images

![Battery Tender 021-0123 12-Volt Battery Tender(R) Junior - Image 1](https://m.media-amazon.com/images/I/41tpi0a2-pL.jpg)
![Battery Tender 021-0123 12-Volt Battery Tender(R) Junior - Image 2](https://m.media-amazon.com/images/I/41ymSXphhNL.jpg)
![Battery Tender 021-0123 12-Volt Battery Tender(R) Junior - Image 3](https://m.media-amazon.com/images/I/51iQiaPwbfL.jpg)
![Battery Tender 021-0123 12-Volt Battery Tender(R) Junior - Image 4](https://m.media-amazon.com/images/I/41EjR5IspjL.jpg)
![Battery Tender 021-0123 12-Volt Battery Tender(R) Junior - Image 5](https://m.media-amazon.com/images/I/41EgLuU8frL.jpg)

## 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.sg/products/144341349-battery-tender-021-0123-12-volt-battery-tender-r-junior](https://www.desertcart.sg/products/144341349-battery-tender-021-0123-12-volt-battery-tender-r-junior)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-09-23*