---
product_id: 339163607
title: "Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation"
brand: "yonhan"
price: "R$534"
currency: BRL
in_stock: true
reviews_count: 12
category: "Yonhan"
url: https://www.desertcart.com.br/products/339163607-battery-charger-10-amp-12v-and-24v-fully-automatic-smart
store_origin: BR
region: Brazil
---

# 10A fast smart charging Battery repair & desulfation Temperature-compensated modes Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation

**Brand:** yonhan
**Price:** R$534
**Availability:** ✅ In Stock

## Summary

> 🔌 Keep your ride ready & battery healthy—smart charging that works as hard as you do!

## Quick Answers

- **What is this?** Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation by yonhan
- **How much does it cost?** R$534 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/339163607-battery-charger-10-amp-12v-and-24v-fully-automatic-smart)

## Best For

- yonhan enthusiasts

## Why This Product

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

## Key Features

- • **Safety-First Design:** Built-in protections against reverse polarity, overcharge, and short circuits ensure worry-free use.
- • **All-in-One Powerhouse:** Charges, maintains, trickle charges & repairs 12V/24V lead-acid batteries seamlessly.
- • **Intuitive LCD Display:** Backlit screen shows voltage, current, temperature & charging status for real-time monitoring.
- • **Advanced Battery Revival:** Repair mode restores aging batteries, extending lifespan and saving replacement costs.
- • **Smart Temperature Control:** Winter & summer modes optimize charging to protect battery health year-round.

## Overview

The YONHAN 10-Amp 12V/24V Smart Battery Charger is a compact, fully-automatic device designed for all lead-acid battery types including AGM, GEL, SLA, and Flooded. It features temperature-compensated charging modes, an advanced repair function to rejuvenate old batteries, and a clear LCD display for monitoring battery health. With built-in safety protections and versatile modes for cars, motorcycles, and more, it ensures your battery stays charged, maintained, and ready—perfect for professionals who demand reliability and efficiency.

## Description

Buy YONHAN Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation: Battery Chargers - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great little charger - This is a nice little charger, great for the price. This is simple to use, works well and afordabe. The wires are a little cheap, but for what it is, its great. I have it connected to a 12v lead acid that runs my well pump (6a 12v) and it works great. I connected it and have to do nothing now. Great purchase!
Review: Great 12/24V Battery Charger with Repair Function - My 6-year-old Audi Q5 can start OK, because it has a strong starter (has auto start/off) but because of it's low state of charge, that function no longer works. I bought a trickle charger before this one which charged well on a 2019 Corolla that's being driven very little and infrequent but not on my 2018 Audi Q5. That other trickle charger charged my battery from 11.7 to 11.9V. I bought this charger due to it has a separate mode for AGM and Repair because my Audi battery is AGM. FYI, manual says you need to wait at least an hour from the last usage of your battery. So, I first charged it in the AGM mode and the display went from 50% to 100% in only 10 minutes but the voltage only improved to 12V. Yesterday I put it on repair mode, and it took 8 hours to show full. I did not wait for it to turn off by itself. The battery now has improved from 12V to 12.55V; from 50% to 80% capacity on a 6-year-old large AGM battery. I did not bother to remove the power cords due to my bad back and the battery is situated in the trunk all the way behind the backseat. Luckily it does not appear to cause any damage to my car. During the repair mode, I monitored the battery temperature with my laser thermometer; the charger nor the battery did not get warm and stayed in the low 70's. PROS: 1) Has separate AGM and Motorcycle and repair mode. 2) Great LCD lighted display will show the battery level when you hook it up even before you plug in the power cord. It will also show charger temperature, charging current & status, battery voltage & etc. 3) Smart charger has a built-in fan to stay cool and it will alter the charging power with respect to the battery status. It will start out slow and rarely goes to the full 10A, then it will decrease the power when you reached half full then even lower at 75%. Even when it's @100% charged, it will trickle charge to the max then turn itself off (fan off but light still on) and display OFF. 4) Great repair mode that reconditioned my 6 year old AGM battery from 50% to 80% capacity. 5) Very good price; I paid $24 shipped. CONS: 1) Very short cord, you will need an extension cord. But it's no big deal. 2) Per owner's manual, in Motorcycle mode, it will charge battery to full then turn off and turn back on when voltage drops below 12.5V. But does that mean you cannot maintain your battery in the other modes? It also states not to leave the charger unattended over 12 hours. Therefore, I don't think this is a battery maintainer which is fine for me. ................................................................ With this battery charger, I can charge my batteries before and after I go on a vacation and let not my batteries charge level go down too low thus prolongs the life of my batteries. I only had it for a week and so far, I am very happy about this product. I will update if the charger quit or have some problems.

## Features

- [All in One, Keep your battery charged and your car ready to go] This compact yet powerful 10-Amp 12V/24V smart battery charger is a versatile all-in-one solution, functioning as a charger, maintainer, trickle charger, and desulfator. It works with all 12V and 24V lead-acid batteries, including AGM, GEL, SLA, and Flooded types, for vehicles like cars, trucks, SUVs, motorcycles, lawnmowers, and boats. Note: For 12V/24V automotive or motorcycle batteries only. Not suitable for RC LiPo batteries or laboratory use.
- [Your Ultimate Winter Car Battery Companion] This smart car battery trickle charger has winter and summer modes to adjust charging based on temperature, preventing battery drain. It includes safety features like reverse polarity protection, overcharge protection, and short circuit prevention, ensuring safe and reliable charging. Perfect for keeping your car battery charged during cold winters or long breaks.
- [Enjoy Precision Charging, Your car deserves the best] This automotive battery charger has a backlit LCD that shows voltage, current, power percentage, temperature, and mode settings, making it easy to check your battery's health. It includes a thermal sensor to adjust charging, preventing overcharging in heat and undercharging in cold. The charger remembers your last mode and defaults to it after a power outage.
- [Restore your Battery, Don't let a dead battery ruin your plans] This battery charger includes an advanced repair mode to revive old or idle batteries and extend their lifespan. Use repair mode if the battery won't charge normally. Its high and low-frequency pulse technology helps restore and activate batteries, but it won't work on completely dead, damaged, or lithium batteries. Input line length：90cm, Output line length：65cm
- Note: 1. Our product is a car battery charger that requires connection to a power outlet for operation. 2. Regarding the power plug not making contact, this could be due to dirty battery terminals, loose clamps, or size mismatch. Please clean the terminals and ensure a firm connection. 3. This car battery charger cannot charge batteries voltage below 0.3V or batteries that are already damaged. 4. Always check your battery's voltage before attempting to charge. 5. If the battery indicator icon on the charger's display is flashing empty, this indicates that no battery has been detected, and charging will not be possible.
- [Trickle charge mode switch] If you want to trickle charge your battery, you can switch to motorcycle mode after the battery is fully charged. This mode is compatible with the voltage monitoring mode, which keeps the battery voltage at least 12V at all times, keep batteries stay charged for a long time.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B097D397M6 |
| Best Sellers Rank | #247 in Automotive ( See Top 100 in Automotive ) #7 in Battery Chargers |
| Customer Reviews | 4.4 4.4 out of 5 stars (13,757) |
| Date First Available | June 17, 2021 |
| Item Weight | 1.34 pounds |
| Item model number | RJ-C121001A |
| Manufacturer | YONHAN |
| Product Dimensions | 2.4 x 6.2 x 3.7 inches |

## Product Details

- **Brand:** YONHAN
- **Color:** Red 10A
- **Item Weight:** 1.3 Pounds
- **Output Voltage:** 12 Volts (DC)
- **Product Dimensions:** 2.4"D x 6.2"W x 3.7"H

## Images

![Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation - Image 1](https://m.media-amazon.com/images/I/71Ms7ctGAaS.jpg)

## Questions & Answers

**Q: This didn't come with a owner's manual. could somone send a link of the manual to upload, or send some screenshots, to know all of the features???**
A: I've attached a video of the manual, which I have as a scanned PDF.  Why Amazon doesn't let us post a PDF is beyond me!  Anyway I converted the PDF to a video using Debut software.  
BTW... I use the charger all the time to keep my tractor, Gator, and vehicle batteries charged during winter months of inactivity.  I really like its ease of use and functionality.  Gets 5 stars from me...I have two of them, one at Ranch and one at home.

**Q: Can this charge marine batteries?**
A: Yes, will charge deep cycle 12v batteries. Select MOTORCYCLE for low amp charge or indefinite maintainer.  Or for faster charging, charge the battery in regular mode (STD/AGM,GEL/WET) and it will go through the cycle and charge to FULL. Then switch to MOTORCYCLE mode to maintain the battery for long periods. Once it finishes the motorcycle charge mode, it will indicate FULL and go into standby mode. If the battery voltage drops below FULL, the charger will restart and charge to FULL again and repeat the process, thus not overcharging the battery. I have tested this mode several times by turning on the headlights to force the battery voltage to drop while leaving the charger connected. Each time it has restarted and topped of the battery to FULL and gone back into standby. The enclosed instructions are crap. I found this information on a different branded but exact same model instruction. This Amazon website now shows these instructions.

**Q: I have a condo so I can’t run a power cord to my parking spot. Can I charge the unit then charge my battery. If not do u kno of a charger that does?**
A: No, it will not "charge" your battery. It will give you enough power so that you can start you car. The battery should charge while you drive or let it run for a while. If the car will not start after you have driven it, it's time to buy a new battery.

**Q: Do battery charger operate well off a generator ?**
A: I have never tried it with a generator, my utility supply is 115V and it works well. I think that it will work if the generator voltage is stable and at appropriate output voltage.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great little charger
*by G***Y on January 20, 2026*

This is a nice little charger, great for the price. This is simple to use, works well and afordabe. The wires are a little cheap, but for what it is, its great. I have it connected to a 12v lead acid that runs my well pump (6a 12v) and it works great. I connected it and have to do nothing now. Great purchase!

### ⭐⭐⭐⭐⭐ Great 12/24V Battery Charger with Repair Function
*by H***R on December 21, 2023*

My 6-year-old Audi Q5 can start OK, because it has a strong starter (has auto start/off) but because of it's low state of charge, that function no longer works. I bought a trickle charger before this one which charged well on a 2019 Corolla that's being driven very little and infrequent but not on my 2018 Audi Q5. That other trickle charger charged my battery from 11.7 to 11.9V. I bought this charger due to it has a separate mode for AGM and Repair because my Audi battery is AGM. FYI, manual says you need to wait at least an hour from the last usage of your battery. So, I first charged it in the AGM mode and the display went from 50% to 100% in only 10 minutes but the voltage only improved to 12V. Yesterday I put it on repair mode, and it took 8 hours to show full. I did not wait for it to turn off by itself. The battery now has improved from 12V to 12.55V; from 50% to 80% capacity on a 6-year-old large AGM battery. I did not bother to remove the power cords due to my bad back and the battery is situated in the trunk all the way behind the backseat. Luckily it does not appear to cause any damage to my car. During the repair mode, I monitored the battery temperature with my laser thermometer; the charger nor the battery did not get warm and stayed in the low 70's. PROS: 1) Has separate AGM and Motorcycle and repair mode. 2) Great LCD lighted display will show the battery level when you hook it up even before you plug in the power cord. It will also show charger temperature, charging current & status, battery voltage & etc. 3) Smart charger has a built-in fan to stay cool and it will alter the charging power with respect to the battery status. It will start out slow and rarely goes to the full 10A, then it will decrease the power when you reached half full then even lower at 75%. Even when it's @100% charged, it will trickle charge to the max then turn itself off (fan off but light still on) and display OFF. 4) Great repair mode that reconditioned my 6 year old AGM battery from 50% to 80% capacity. 5) Very good price; I paid $24 shipped. CONS: 1) Very short cord, you will need an extension cord. But it's no big deal. 2) Per owner's manual, in Motorcycle mode, it will charge battery to full then turn off and turn back on when voltage drops below 12.5V. But does that mean you cannot maintain your battery in the other modes? It also states not to leave the charger unattended over 12 hours. Therefore, I don't think this is a battery maintainer which is fine for me. ................................................................ With this battery charger, I can charge my batteries before and after I go on a vacation and let not my batteries charge level go down too low thus prolongs the life of my batteries. I only had it for a week and so far, I am very happy about this product. I will update if the charger quit or have some problems.

### ⭐⭐⭐⭐⭐ Really Good Product
*by R***S on January 10, 2026*

This little thing works great! My car battery was dead this morning. Ordered it and received it within hours same day. Only charged less than 10 minutes and car started with no problem. It's small enough to keep in my trunk just in case I need it again in the future.

## Frequently Bought Together

- YONHAN Battery Charger 10-Amp 12V and 24V Fully-Automatic Smart Car Battery Charger, Battery Maintainer Trickle Charger, and Battery Desulfator with Temperature Compensation
- NOCO GENIUS1: 1A 6V/12V Smart Battery Charger – Automatic Maintainer, Trickle Charger & Desulfator with Overcharge Protection & Temperature Compensation – For Lead-Acid & Lithium Batteries

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-25*