---
product_id: 21017525
title: "Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Automatic for Cars SUVs and Trucks - Lead Acid, AGM, Gel, & Lithium Battery Charger - 022-0202-COS"
brand: "battery tender"
price: "€ 174.82"
currency: EUR
in_stock: true
reviews_count: 8
category: "Battery Tender"
url: https://www.desertcart.sk/products/21017525-battery-tender-3-amp-battery-charger-and-maintainer-automotive-switchable
store_origin: SK
region: Slovakia
---

# 3 Amp smart charge power Auto float mode for maintenance Switchable 6V/12V compatibility Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Automatic for Cars SUVs and Trucks - Lead Acid, AGM, Gel, & Lithium Battery Charger - 022-0202-COS

**Brand:** battery tender
**Price:** € 174.82
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay powered, stay ahead — never get caught with a dead battery again!

## Quick Answers

- **What is this?** Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Automatic for Cars SUVs and Trucks - Lead Acid, AGM, Gel, & Lithium Battery Charger - 022-0202-COS by battery tender
- **How much does it cost?** € 174.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/21017525-battery-tender-3-amp-battery-charger-and-maintainer-automotive-switchable)

## 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 connection with reverse polarity detection ensures worry-free charging.
- • **Smart 3 Amp Charging:** Delivers optimal power without overcharging, preserving battery life.
- • **Auto Float Maintenance:** Automatically switches to float mode to keep your battery perfectly topped off.
- • **Extended Reach & Compact:** 11 feet of combined cord length fits tight spaces while staying lightweight and portable.
- • **Universal Voltage Switch:** Easily toggle between 6V and 12V for versatile battery support.

## Overview

The Battery Tender 3 AMP Charger is a compact, smart automatic charger and maintainer designed for 6V and 12V lead-acid, AGM, gel, and lithium batteries. It delivers a steady 3 amp charge, automatically switches to float mode to prevent overcharging, and features safety mechanisms like spark-proof connection and reverse polarity detection. With 11 feet of combined cord length and a 5-year warranty, it’s the trusted choice for keeping your car, SUV, or truck battery in peak condition.

## Description

Buy Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Automatic for Cars SUVs and Trucks - Lead Acid, AGM, Gel, & Lithium Battery Charger - 022-0202-COS: Battery Chargers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Excellent Quality, Heavy Duty Battery Tender - Buy this knowing you'll be quite happy - Well if you know Battery Tender then you already know what this review will say. If you do not know this brand please read. The size is what you would expect from this item, there are smaller foot print battery tenders available but the charge rate does drop. This particular model work amazingly well The charge rate is exactly what one would hope for in a tender - it is not a "fast" charge as it is not meant to be; However, it does get the battery full quickly The indicator lights are bright and easy to read/understand at a quick glance Battery Tender durability is excellent I have a few actually one is over 10 years old and going strong
Review: Dead battery no more - Finally was smart enough to get this for any battery that won't be used for winter time or long storage of your vehicle or tractors or motorcycles. Wish purchased sooner. But better late then never. It works extremely well charging my battery and keeping it charged with trickle charging. Also the cord is long enough to reach hard to reach places. Easy to set up and use self explanatory. Highly recommend 5 stars

## Features

- Stay Charged: The powerful 3 amp charger provides a full charge to your automotive vehicle’s battery before automatically going into float mode to maintain proper voltage levels without overcharging. 5 amps 12 volt charger and maintainer
- Connect and Forget: With a low maintenance design, our universal vehicle charger and maintainer is compact, lightweight, and easy to operate even in small storage space for your convenience. Features 11 total feet of combined reach including 6 ft. AC cord and 5 ft. DC output charging cord
- Includes: 3 AMP battery charger, ring terminal and alligator clip combo cable, 5 year manufacturer's warranty, instruction manual, and lifetime customer service
- Monitor Power Levels: A solid state two-color LED light indicates the charging status and if the battery voltage drops too far under load, ISM adaptive charging will resume full charger output power. It is UL/CSA, CE and BC approved
- Safe and Secure: Spark-proof during lead connection and automatically detects reverse polarity to ensure a correct, locked-in connection before providing power.
- Versatility: Compatible with lead-acid, flooded or sealed maintenance free batteries (AGM and gel cell), this charger works with 6 volt and 12 volt batteries with the push of a button

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B016S7NHWQ |
| Best Sellers Rank | #4,903 in Automotive ( See Top 100 in Automotive ) #45 in Battery Chargers |
| Brand | Battery Tender |
| Built-In Media | Funnel |
| Color | Black |
| Current Rating | 3 Amps |
| Customer Reviews | 4.8 out of 5 stars 2,175 Reviews |
| Global Trade Identification Number | 00734357220209 |
| Input Voltage | 120 Volts (AC) |
| Item Dimensions D x W x H | 3.4"D x 11.1"W x 9.4"H |
| Item Type Name | Battery Chargers |
| Item Weight | 1.44 Pounds |
| Manufacturer | Deltran |
| Mfr Part Number | 022-0202-COS |
| Output Voltage | 12 Volts (DC) |
| Product Dimensions | 3.4"D x 11.1"W x 9.4"H |
| Specification Met | DOE, ETL, FCC |
| UPC | 734357220209 713002505359 |
| Unit Count | 1.0 Count |
| Warranty Description | 5 Year Manufacturer Warranty |

## Product Details

- **Brand:** Battery Tender
- **Color:** Black
- **Item Weight:** 1.44 Pounds
- **Output Voltage:** 12 Volts (DC)
- **Product Dimensions:** 3.4"D x 11.1"W x 9.4"H

## Images

![Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Automatic for Cars SUVs and Trucks - Lead Acid, AGM, Gel, & Lithium Battery Charger - 022-0202-COS - Image 1](https://m.media-amazon.com/images/I/51ug4zbSnSL.jpg)

## Available Options

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

## Questions & Answers

**Q: How does Axtra 3.6-amp battery charger compare to Battery Tender 3-amp battery charger?**
A: The Axtra acts as both a 6-volt and a 12-volt charger. However, it can also provide a constant 3-amp battery tender witch, when set, will provide a continuous charge over a long period of time. The 3-amp battery tender only provides a continuous charge but cannot provide a 6 or 12-volt charge. If you do not have a charger, I would recommend the Axtra as is it can provide both aspects.

**Q: I'm using Axtra battery charger to maintain 2 batteries over the winter. Is this Battery Tender reliable as Axtra battery maintainer?**
A: My experience with using the battery tender is nothing but good. Pretty much set it and forget it. No problems what so ever. Very easy to use, very well made, very reliable. I would for sure buy another one.

**Q: Is this over rated for motorcycles**
A: If the battery is rated less than 30 amp hrs, I would say yes. The rule of thumb is the maximum charge rate should not excede 1/10 of the battery's Amp hr rating. E.g. 20 amp hr battery should not be charged at over 2 amps

**Q: Planning to connect black to black and red to red pigtail for car battery still inside car. Confused since not sure if that’s grounded. Pls confirm?**
A: Yes, Red to Red (positive) and Black to Black (negative) is the correct connection.  Why are you worried about ground on a 12 volt car battery?

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Quality, Heavy Duty Battery Tender - Buy this knowing you'll be quite happy
*by R***I on July 3, 2025*

Well if you know Battery Tender then you already know what this review will say. If you do not know this brand please read. The size is what you would expect from this item, there are smaller foot print battery tenders available but the charge rate does drop. This particular model work amazingly well The charge rate is exactly what one would hope for in a tender - it is not a "fast" charge as it is not meant to be; However, it does get the battery full quickly The indicator lights are bright and easy to read/understand at a quick glance Battery Tender durability is excellent I have a few actually one is over 10 years old and going strong

### ⭐⭐⭐⭐⭐ Dead battery no more
*by V***8 on February 2, 2026*

Finally was smart enough to get this for any battery that won't be used for winter time or long storage of your vehicle or tractors or motorcycles. Wish purchased sooner. But better late then never. It works extremely well charging my battery and keeping it charged with trickle charging. Also the cord is long enough to reach hard to reach places. Easy to set up and use self explanatory. Highly recommend 5 stars

### ⭐⭐⭐⭐⭐ BOTTOM LINE: IT WORKS!!!
*by S***. on December 3, 2025*

I gave it 5 stars because it worked perfectly, and exactly as advertised. The only issue I had was with the instructions, not the product. Once I figured out how to use the product, it was very easy. The instructions are unnecissarily confusing.. I would recommend using your head more than the instructions when using it, and only refer to the instructions when interpreting what the various light combinations are telling you. Bottom line: It works.

## Frequently Bought Together

- Battery Tender 3 AMP Battery Charger and Maintainer - Automotive Switchable 12V or 6V Smart Automatic for Cars SUVs and Trucks - Lead Acid, AGM, Gel, & Lithium Battery Charger - 022-0202-COS
- 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 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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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-07*