---
product_id: 375750999
title: "HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface"
brand: "hulkman"
price: "KD 1.30"
currency: KWD
in_stock: false
reviews_count: 10
url: https://www.desertcart.com.kw/products/375750999-hulkman-sigma-1-car-battery-charger-1a-6v-12v-automatic
store_origin: KW
region: Kuwait
---

# 1A Power 6V/12V Compatibility 2.7" LED Display HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface

**Brand:** hulkman
**Price:** KD 1.30
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Charge Smart, Live Smart!

## Quick Answers

- **What is this?** HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface by hulkman
- **How much does it cost?** KD 1.30 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/375750999-hulkman-sigma-1-car-battery-charger-1a-6v-12v-automatic)

## Best For

- hulkman enthusiasts

## Why This Product

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

## Key Features

- • **Super Repair Mode:** Enhance battery performance and extend lifespan in just four hours.
- • **Advanced Loading Mode:** Revive dead batteries with a scientific charging process.
- • **Compact & User-Friendly:** Sleek design with an intuitive LED display for easy monitoring.
- • **Versatile Compatibility:** Charge a wide range of battery types, from lithium-ion to AGM.
- • **Smart Charging Technology:** Experience hands-free battery maintenance with nine-step charging.

## Overview

The HULKMAN Sigma 1 is a cutting-edge 1A automatic smart trickle charger designed for 6V and 12V batteries. It features advanced charging technology, a user-friendly LED display, and compatibility with various battery types, making it an essential tool for maintaining and reviving your vehicle's battery.

## Description

Product description The biggest and brightest LED ever Smart Interface Operation This 2.7-inch LED screen is the biggest and brightest ever on a car battery charger. There is no technical knowledge required, and no complicated modes! Charging information, battery voltage, charging status and mode, incorrect operation warnings, and more, can be viewed clearly with this easy-to-read LED display. Bring Dead Batteries To Life After detecting your dead battery, this charge will automatically turn on “Loading Mode” and bring your dead battery back to life. Wide-Ranging Compatibility Versatility, Compatibility, and Utility An all-in-one charger for 6V, 12V, lead-acid, and lithium batteries, such as deep-cycle flooded, gel, wet, maintenance-free, EFB, and calcium batteries, as well as all vehicle types including automotives, motorcycles, ATVs, RVs, powersport vehicles, lawn mowers, marine vehicles, and more. Perfectly Functional in Fluctuating Temperatures This charger can be used in cold weather down to -4℉/-20℃, and in hot weather up to 104℉/+40℃, with zero worries regarding your safety. Sigma 1 Is Your Trusted Partner Safe for Every HULKMAN User Avoid injuries and damage—even when you keep the charger plugged in—with protection against high temperatures, short circuits, excessive currents, over-voltage, reverse-polarity protection, and sparks. This charger has also been awarded the ETL mark—a safety certification in North America. On-the-job dependability With high-grade, drop-resistant, and dust-tight materials, EMC and EMS technology, and the ability to operate Sigma 1 in a fully electric environment without interfering with other electronic devices or being interfered with, this charger is incredibly durable and reliable for any circumstances. Smart Feature Sigma 1 has been constructed with next-level intelligence, forming a unique 9-step charging technology and the “Super Repair” feature, enabling it to automatically run diagnostics, clear sulfation buildup, and always ensure a full charge with trickle/float charging, extending your battery lifespan. HULKMAN Sigma Series HULKMAN Sigma 1 HULKMAN Sigma 5 HULKMAN Sigma 10 Output Current The Sigma 1 comes with output current of 1A. The Sigma 5 comes with output current of 5A. The Sigma 10 comes with output current of 10A. Input Voltage The input voltage is between 100V and 240V. Battery Capacity It's max capacity is 32Ah. It's max capacity is 120Ah. It's max capacity is 240Ah. Fully Automatic Maintenance It's safe to be left connected to your car batteries for a long time. Can it crank a dead battery? No, it can only charge your dead batteries because it is not a jump starter.

Review: Nice Charger - The Hulkman Sigma 1 car battery trickle charger is a reliable and efficient device designed to keep your vehicle’s battery in top condition. With its durable and weather-resistant build, it’s suitable for both indoor and outdoor use. The charger offers multi-stage charging, which includes desulfation, bulk charge, absorption, and maintenance stages, ensuring safe and effective charging without the risk of overcharging. It’s compatible with various battery types, including lead-acid, AGM, and lithium-ion, making it versatile for different vehicles such as cars, motorcycles, ATVs, and boats. The Sigma 1 features several safety protections, like reverse polarity, short circuit, and overcharge protection, ensuring user and battery safety. One of the standout features is its automatic operation, which adjusts the charging process based on the battery’s condition and ambient temperature, making it user-friendly and low-maintenance. The clear LCD display provides essential information on charging status and battery voltage. Overall, the Hulkman Sigma 1 offers excellent value for its price, combining advanced features with ease of use, making it a great investment for maintaining and reviving vehicle batteries.
Review: Great tool for dead battery with trickle charge function - I bought two of these chargers, one for my golf cart and one for my car. I am so glad I did. Both of my vehicles are not driven very often, so my batteries have completely discharged more than once, and ultimately always needed replacement. I purchased these for a really good price, so it was worth a try, score biting the bullet and buy new batteries yet again. They are really easy to use, and you don’t have to be a rocket scientist to make them work. The battery clamps are easy to attach, which is a big plus for me. I suffer from RA, and this has caused some stiffness in my hands, and loss of strength. You really don’t need a lot of strength to put these clamps on the battery terminals. It’s as easy as pie, so to speak ;-) I put the setting on them on 12V repair mode first, and let them do its work for several hours, before trying to start my vehicles. The car and the golf cart both, started immediately and without problems, after the chargers had cycled through the repair mode, and now I leave them on my vehicles permanently to trickle charge, when they are not in use. This was a really good purchase that saved me money and a lot of headaches. I highly recommend this product.

## Features

- Note: It's a battery maintainer/ trickle charger rather than a jump starter.
- [The Newest Arrival of 2022]: With a new industrial design that is more compact, more attractive, and simpler to use than your average car battery charger, Sigma 1 stands out from the crowd. Best of all, it is not only a battery charger, but also a battery maintainer, trickel/floating charger, and battery desulfator. Combined with its pure copper clamp, Sigma 1 offers customers the best charging experience ever.
- [Smartest Charger Ever]: HULKMAN's smartest car battery charger yet, the Sigma 1 is built with next-level intelligence. Using its nine-step charging technology, Sigma 1 can now maintain your battery overnight or for an even longer period, with zero attention needed and complete dependability, creating a totally hands-free charging experience.
- [Read With Ease]: Once you plug in and attach the battery, a huge 2.7-inch LED screen intuitively indicates the battery level, voltage, and charging mode. Simply select a charging mode and it will begin delivering the power to your battery, making your charge easier and better than ever before.
- [Save Dead Batteries]: If your battery has died, you can now charge dead batteries with our “Advanced Loading Mode,” a scientific charging process that delivers significant current power through qualification, soft start, and pulse mode, as well as recondition and bulk stages, to stimulate dead batteries back to life.
- [One For All]: This charger is compatible with either 6V or 12V sealed lead-acid, and 12V lithium-ion batteries, including deep-cycle, AGM, lifepo4, flooded, gel, wet, maintenance-free, EFB, and calcium batteries.
- [Super Repair Mode]: This car battery charger can accurately recognize bad batteries. By implementing the 12V “Super Repair Mode,” you can enhance your battery performance in only four hours and avoid purchasing an unnecessary replacement by reducing sulfation build-up and acid stratification with pulse cycles, thus offering you a cost-effective, money-saving, and environmentally friendly battery solution.
- [More Versatile]: Sigma 1 allows you to charge and maintain most gas and diesel vehicles such as automotives, motorcycles, scooters, ATVs, RVs, powersport vehicles, lawn mowers, marine vehicles, and more.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09J21T9CL |
| Amperage | 1 Amps |
| Battery Charge Time | 4 Hours |
| Best Sellers Rank | #688,592 in Automotive ( See Top 100 in Automotive ) #1,410 in Battery Chargers |
| Brand | Hulkman |
| Color | Black |
| Compatible Devices | Motocycles、Cars、Automotives、ATVs 、RVs、Powerports、Lawn Mowers、Marine |
| Current Rating | 1 Amps |
| Customer Reviews | 4.6 out of 5 stars 975 Reviews |
| Input Voltage | 240 Volts (AC) |
| Item Dimensions D x W x H | 3.94"D x 2.44"W x 1.69"H |
| Item Weight | 445 Grams |
| Manufacturer | HULKMAN |
| Mfr Part Number | Sigma 1 |
| Model Number | Sigma 1 |
| Output Voltage | 12 Volts (DC) |
| Product Dimensions | 3.94"D x 2.44"W x 1.69"H |
| Specification Met | EFB |
| UPC | 761062119726 761062119689 |
| Warranty Description | 2-YEAR HASSLE-FREE WARRANTY |

## Product Details

- **Brand:** Hulkman
- **Color:** Black
- **Product Dimensions:** 3.94"D x 2.44"W x 1.69"H
- **Item Weight:** 445 Grams
- **Output Voltage:** 12 Volts (DC)

## Images

![HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 1](https://m.media-amazon.com/images/I/61GJIwE-LrL.jpg)
![HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 2](https://m.media-amazon.com/images/I/81VwtVOxkLL.jpg)
![HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 3](https://m.media-amazon.com/images/I/610zsGW-dCL.jpg)
![HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 4](https://m.media-amazon.com/images/I/71cVemJj-TL.jpg)
![HULKMAN Sigma 1 Car Battery Charger - 1A 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 5](https://m.media-amazon.com/images/I/71Zs0GTg0GL.jpg)

## Questions & Answers

**Q: Does the wall charger work on 220 volts?**
A: YES, your sigma 1 battery charger can be left connected to a 220V outlet. As long as the input voltage is between 100V and 240V, it will be able to recharge your car battery.

**Q: I need to charge my 1996 MR2 Japanese Model. I imported it from Japan. Will this work without removing the battery?**
A: Thank you for your interest in HULKMAN's products. The Sigma 1 can charge your battery without removing it. Please make sure to confirm the type of your battery before selecting the charging mode, the Sigma 1 is suitable for a wide range of 6V/12V lead-acid batteries and 12V lithium batteries, charging batteries up to 32Ah and maintaining all battery capacity.

**Q: what is the best us to uk adapter plug fit for this product,  for use in the uk.**
A: Since it’s a two prong there is no ground. so you can use a standard US to UK adapter

**Q: Can this charge a battery that is at 0%? I hooked it up and selected 12v but nothing seems to happen?**
A: I would try the 12v Repair mode instead of the normal 12v mode. I used thus mode for my motorcycle battery during the winter. This mode is also for older batteries. So this is probably the better mode if yo are at 0%. I'm not 100% on this but that is the route I would try. It takes 4 hours for the repair mode. Good luck.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Nice Charger
*by T***A on June 26, 2024*

The Hulkman Sigma 1 car battery trickle charger is a reliable and efficient device designed to keep your vehicle’s battery in top condition. With its durable and weather-resistant build, it’s suitable for both indoor and outdoor use. The charger offers multi-stage charging, which includes desulfation, bulk charge, absorption, and maintenance stages, ensuring safe and effective charging without the risk of overcharging. It’s compatible with various battery types, including lead-acid, AGM, and lithium-ion, making it versatile for different vehicles such as cars, motorcycles, ATVs, and boats. The Sigma 1 features several safety protections, like reverse polarity, short circuit, and overcharge protection, ensuring user and battery safety. One of the standout features is its automatic operation, which adjusts the charging process based on the battery’s condition and ambient temperature, making it user-friendly and low-maintenance. The clear LCD display provides essential information on charging status and battery voltage. Overall, the Hulkman Sigma 1 offers excellent value for its price, combining advanced features with ease of use, making it a great investment for maintaining and reviving vehicle batteries.

### ⭐⭐⭐⭐⭐ Great tool for dead battery with trickle charge function
*by M***O on March 25, 2024*

I bought two of these chargers, one for my golf cart and one for my car. I am so glad I did. Both of my vehicles are not driven very often, so my batteries have completely discharged more than once, and ultimately always needed replacement. I purchased these for a really good price, so it was worth a try, score biting the bullet and buy new batteries yet again. They are really easy to use, and you don’t have to be a rocket scientist to make them work. The battery clamps are easy to attach, which is a big plus for me. I suffer from RA, and this has caused some stiffness in my hands, and loss of strength. You really don’t need a lot of strength to put these clamps on the battery terminals. It’s as easy as pie, so to speak ;-) I put the setting on them on 12V repair mode first, and let them do its work for several hours, before trying to start my vehicles. The car and the golf cart both, started immediately and without problems, after the chargers had cycled through the repair mode, and now I leave them on my vehicles permanently to trickle charge, when they are not in use. This was a really good purchase that saved me money and a lot of headaches. I highly recommend this product.

### ⭐⭐⭐⭐⭐ Revived my extremely dead 12v battery
*by W***Y on December 21, 2022*

Due to long periods of neglect my battery went to levels I didn't know were possible (3.7v). So, it came down to the point where a jump-start was required every single time I shut off my car as that would jolt the voltage high enough to switch over to my 2 aux batteries, with the length of time increasing every time. The 'repair' function didn't do anything other than beep and tell me the battery is funked, but did raise the voltage to 5.29v although it took 48-51 hrs. On the bright side, it seemed to stop drawing power to attempt charging once it threw up the warning of not holding a charge, but drew enough power to beep until the end of time. So, that's a cool feature. At least it seems to know when it's doing something that is inefficiently working, where any continuation won't do anyone any good and stop itself. "smart" charger for sure. Since the intended use for this product it's low-amp trickle charging and not the "repair" mode, I popped off the battery caps and refilled each one with distilled water mixed with a dash of epsom salt, clamped the correct battery posts, set mode to normal (the first one), confirmed current output (~1.5A) from power source, and prayed that this works or look stubbornly stupid. A day and a half later, the battery measured 12.1v. More importantly, even though there's some hesitation, the car turns on by itself! After charging 2-3 times overnight, the battery seems fully grown (12.9v) and has had no problems turning over with voltage holding around 14.1-14.3 , occasionally dropping to as low as 13.5 if I'm running electronics that suck a lot like headlights, the sound system, 10A charger for generator, 2A charger for phone, etc But even when put under that much stress at any speed, there's no headlights dimming, car rumbling down, head banging on steering wheel so yahtzee! it works! I'm not sure if this speaks to the quality of the charger or the battery for bringing it back from the point most people (including the 'repair mode' message) would buy a new battery-which isn't wrong by any means. I would've bought a new battery myself if I didn't have to choose between that and food. Damn cheese is expensive. But thanks to the quality products offered by HULKMAN and battery by Dyno (yay USA), you made it possible for me to have my cake and eat it too. Even though there are countless other companies that I could've chosen, it seems I made the right call choosing you [pikachu]! Thanks HULKMAN (somewhere on earth, probably China) and Dyno Battery (Seattle, WA).

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-16*