---
product_id: 424634912
title: "HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface"
brand: "hulkman"
price: "€ 337.91"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.nl/products/424634912-hulkman-sigma-5-car-battery-charger-5000ma-6v-12v-automatic
store_origin: NL
region: Netherlands
---

# 5A fast adaptive charging IP67 waterproof & dustproof 9-stage smart battery maintainer HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface

**Brand:** hulkman
**Price:** € 337.91
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up smarter, last longer — never get stranded again!

## Quick Answers

- **What is this?** HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface by hulkman
- **How much does it cost?** € 337.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/424634912-hulkman-sigma-5-car-battery-charger-5000ma-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

- • **Charge 5X Faster:** Turbocharge your battery with 5A output for rapid, efficient power-up.
- • **Revive Dead Batteries:** Advanced pulse desulfation restores batteries down to 0.3V, saving you replacement costs.
- • **9-Stage Smart Maintenance:** Intelligent 9-step charging optimizes battery health and longevity automatically.
- • **Crystal Clear LED Display:** 3.2-inch screen with 13 icons keeps you informed in any lighting condition.
- • **Built to Brave the Elements:** IP67-rated rugged design ensures reliable performance rain or shine.

## Overview

The HULKMAN Sigma 5 is a cutting-edge 5A automatic smart trickle charger and maintainer compatible with 6V/12V lead-acid and LiFePO4 batteries. Featuring a 9-stage charging process, real-time LED display, and advanced desulfation technology, it revives depleted batteries and prevents overcharging. Its IP67-rated rugged design guarantees durability in harsh environments, making it the ultimate battery care solution for cars, motorcycles, and more.

## Description

- Free 3-5 Business Days Shipping - 5 Amp adaptive charging and five tailored charging modes - Well-designed 3.2'' user interface screen displays up to 13 icons - 9-Step Charge Optimizer ensures the correct level of power is sent to the battery - Automatically detects and recovers battery sulfation and acid stratification - Guarded by 5 smart system protections -Â 36 months of hassle-free warranty and lifetime technical support

Review: Review Update: 12/20/2024 Just Ordered Another One! Unfortunately I Can't Find The 9.5 Extension Cable Anywhere! (SOLD OUT) Important: This Item Says It Has A High Return Rate! So After Reading The Negative Reviews People Are Expecting This To Restore Their Dead Batteries? One Guy Says It Won't Hold A Charge! Ya! The Battery Has A Bad Cell And The Battery Needs To Be Replaced! Battery Tenders Tend Good Batteries, They Don't Hold A Charge! Once The Battery Has Reached The End Of Its Life You Need To Replace It! If You Let Your Battery Go Dead And Jump The Battery You Are Killing The Battery And Shortening It's Life Considerably So These Tenders Gently Keep Your Battery TENDED. The CTEK Chargers Work Great Too But This HULKMAN Is The Best And 1/3rd The Cost! I Have 4 Now For Snow blowers, Generators, Cars, Lawn Tractors Etc. Working Awesome for 2 Years! The Only Hulkman Negative Is The AC Side Cable Is Long But The DC Side Is Short So How Could You Mount The Charger To The Wall (BUY THE 9.5ft EXTENSION CABLE) $19.95 But (SOLD OUT) Original Review: This HULKMAN Has Got To be the Best Maintainer Available for the Money! The Quality is Just Superb in Every Way, The Read Out Not Being Just Little Lights and a Full Display is Amazing and Comes With a Great Bracket, Quality Clips ETC. I Bought 4 of The CTEC Units and they have been Great too but More Cash and No Brackets with only little led lights. This Started After All my Delran Tenders began Shorting out & destroying all My Batteries Each Time they Went. The Little Delran JR's Still Work Good and have had no Problems so Delran will be sure to Fix That like they did with all the Plus Units (JUNK) I Would Only Ask That HULKMAN Makes an Adaptor to go from the Delran Connector To The Hulkman Style because I have Tons Of the Extensions From The Delran junk that I can't use and CTEC Makes The Adaptors But Otherwise I would Have Rathered All Hulkman Units For The Quality and DISPLAY and Features. It Even Beeps When You Connect It to Let you know Your Connected AWESOME Stuff at a Great Price. I Just Bought This Second Unit and This Review Is For the One I Got over 1.5 years ago Working Flawlessly.
Review: I also own a Noco Genius 5 charger that I thought was the bomb when it came to battery charging. Until it met the Costco interstate battery in a 2000 Subaru Forester. To be fair the Forester has a phantom leak that I have been too lazy to diagnose (it’s a 25 year old car, so not the daily driver), but the Noco could not maintain a charge on the battery when it was charged, and definitely not when it drained down (because the Noco shut off). I tried all the various settings to the Noco to get it recharged, but no luck. Reading the reviews on the Hulkman, I was skeptical but figured it was worth a try. At first the battery still wouldn’t charge, but after a few goes at the repair function, the Hulkman rescued the battery and still continues to keep it charged, unlike the Noco. Maybe it’s user error, but the Hulkman has me sold. I should also note that using it is much more intuitive than the Noco. Probably user error again, but I really don’t need to refer to the manual for the Hulkman. Highly recommended.

## Features

- Note: This unit needs to be connected to an external AC source (socket), not a car jump starter
- 5A Trickle Charger — Charge battery 5 times faster than Sigma 1. It outputs 12V DC 5A / 6V DC 1.8A. It's perfect for 15 to 121Ah batteries in 12V Mode, and 6 to 50Ah in 6V Mode. It also works as a maintainer, desulfator, floating charger all in one for lead-acid and LiFePO4 batteries
- 9 Stages Battery Maintainer — No need to worry about overcharging or overheating. With a smart chip, it optimizes car batteries by 9-stages charging. This tech enables full charge auto power-off and float charge restart, keeping the battery in peak condition without intervention
- Clear LED Display — Bid farewell to unknown failures. The 3.2 - inch LED screen shows real - time battery status, voltage, charging mode, incorrect operations. And the LED icons make it visible in bright sunlight or in dim indoor environments
- Revive Depleted Batteries — Got a dead battery? Loading Mode can restore batteries as low as 0.3V, and Repair Mode can refresh those with over 2V. As a desulfator, it uses pulse charging to save you from buying a new battery
- Wide Battery Compatibility — Compatible with 12V / 6V lead-acid and 12V lithium batteries (LiFePO4), including deep cycle, AGM, flooded, gel, wet, MF, EFB, and calcium types. Ideal for cars, motorcycles, mopeds, ATVs, etc
- IP67 Protection of Accident — Made of high-strength resin with integral encapsulation, it meets the IP67 standard for dustproof and waterproof. Unfazed by long-term storage, humidity, and unexpected weather
- What's in the Box — The Sigma 5 package comes with alligator clamps, eyelets, a wall-mounted bracket, a user manual, and a 3-Year Customer Service

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09N79S3WR |
| Best Sellers Rank | #106,199 in Automotive ( See Top 100 in Automotive ) #331 in Battery Chargers |
| Item model number | Sigma 5 |
| Manufacturer | HULKMAN |
| Product Dimensions | 14 x 7.8 x 4.8 cm; 856 g |

## Product Details

- **Brand:** Hulkman
- **Colour:** Black
- **Item weight:** 856 Grams
- **Output voltage:** 12 Volts
- **Product dimensions:** 7.8D x 14W x 4.8H centimeters

## Images

![HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 1](https://m.media-amazon.com/images/I/71GpRwIUiQL.jpg)
![HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 2](https://m.media-amazon.com/images/I/71MSXoVFhsL.jpg)
![HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 3](https://m.media-amazon.com/images/I/614MxW4Qm9L.jpg)
![HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 4](https://m.media-amazon.com/images/I/71UEYNCgDiL.jpg)
![HULKMAN Sigma 5 Car Battery Charger, 5000mA 6V/12V Automatic Smart Trickle Charger, Battery Maintainer, and Desulfator with Intelligent Interface - Image 5](https://m.media-amazon.com/images/I/71V16YHKvlL.jpg)

## Questions & Answers

**Q: Can this handle a truck with 2 batteries?**
A: If it is a 12V system, then you can use it to charge your battery. If it is a 24V system, then you cannot use it to charge your battery.

**Q: Can I replace the 3 amp fuse on the included o-ring cable adapter with a 5 amp fuse?**
A: I don't know but using a larger fuse may damage the unit.

**Q: Hello,  How many hours does a 12 volt car battery need to be fully charged?**
A: The number of hours for a 12 volt car battery needs to be fully charged depends on the size of the battery and the level of discharge.  A general guideline that I go by is the battery size in Amp Hours (AH) and divide by the Amp rating of the charger, so I figure a 60 AH battery might need 12 hours (60AH / 5A).  Ambient temperature, age of battery and chemistry type of the battery can also have an influence on the amount of time to reach a full charge.

**Q: Can this be used as an onboard battery maintainer**
A: Thank you for your interest in HULKMAN! The compatibility of our car battery trickle charger depends on the battery capacity, which should fall within the range of 15Ah to 120Ah.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***R on 8 October 2023*

Review Update: 12/20/2024 Just Ordered Another One! Unfortunately I Can't Find The 9.5 Extension Cable Anywhere! (SOLD OUT) Important: This Item Says It Has A High Return Rate! So After Reading The Negative Reviews People Are Expecting This To Restore Their Dead Batteries? One Guy Says It Won't Hold A Charge! Ya! The Battery Has A Bad Cell And The Battery Needs To Be Replaced! Battery Tenders Tend Good Batteries, They Don't Hold A Charge! Once The Battery Has Reached The End Of Its Life You Need To Replace It! If You Let Your Battery Go Dead And Jump The Battery You Are Killing The Battery And Shortening It's Life Considerably So These Tenders Gently Keep Your Battery TENDED. The CTEK Chargers Work Great Too But This HULKMAN Is The Best And 1/3rd The Cost! I Have 4 Now For Snow blowers, Generators, Cars, Lawn Tractors Etc. Working Awesome for 2 Years! The Only Hulkman Negative Is The AC Side Cable Is Long But The DC Side Is Short So How Could You Mount The Charger To The Wall (BUY THE 9.5ft EXTENSION CABLE) $19.95 But (SOLD OUT) Original Review: This HULKMAN Has Got To be the Best Maintainer Available for the Money! The Quality is Just Superb in Every Way, The Read Out Not Being Just Little Lights and a Full Display is Amazing and Comes With a Great Bracket, Quality Clips ETC. I Bought 4 of The CTEC Units and they have been Great too but More Cash and No Brackets with only little led lights. This Started After All my Delran Tenders began Shorting out & destroying all My Batteries Each Time they Went. The Little Delran JR's Still Work Good and have had no Problems so Delran will be sure to Fix That like they did with all the Plus Units (JUNK) I Would Only Ask That HULKMAN Makes an Adaptor to go from the Delran Connector To The Hulkman Style because I have Tons Of the Extensions From The Delran junk that I can't use and CTEC Makes The Adaptors But Otherwise I would Have Rathered All Hulkman Units For The Quality and DISPLAY and Features. It Even Beeps When You Connect It to Let you know Your Connected AWESOME Stuff at a Great Price. I Just Bought This Second Unit and This Review Is For the One I Got over 1.5 years ago Working Flawlessly.

### ⭐⭐⭐⭐⭐ Review
*by E***E on 23 March 2025*

I also own a Noco Genius 5 charger that I thought was the bomb when it came to battery charging. Until it met the Costco interstate battery in a 2000 Subaru Forester. To be fair the Forester has a phantom leak that I have been too lazy to diagnose (it’s a 25 year old car, so not the daily driver), but the Noco could not maintain a charge on the battery when it was charged, and definitely not when it drained down (because the Noco shut off). I tried all the various settings to the Noco to get it recharged, but no luck. Reading the reviews on the Hulkman, I was skeptical but figured it was worth a try. At first the battery still wouldn’t charge, but after a few goes at the repair function, the Hulkman rescued the battery and still continues to keep it charged, unlike the Noco. Maybe it’s user error, but the Hulkman has me sold. I should also note that using it is much more intuitive than the Noco. Probably user error again, but I really don’t need to refer to the manual for the Hulkman. Highly recommended.

### ⭐⭐⭐⭐⭐ Review
*by S***P on 21 December 2025*

The best battery tender! Have left it connected for weeks and it has maintained and charged the battery well. I haven't noticed any issues to report here. No over charging, and has maintained its number perfectly. It's my go to and a wonderful upgrade over the battery tender brand. It's a good purchase and good value

## Frequently Bought Together

- Hulkman Sigma 5, 5A Car Battery Trickle Charger, 12V and 6V Smart Charger, LiFePO4 and Lead-Acid Battery Automotive Maintainer with 3.2-in LED Display for Automobile, Motorcycle, ATV
- Hulkman Oeream Alpha Bag, EVA Protective Case for Alpha 85, Alpha 85S Jump Starter, black, Sporty
- Hulkman SigmaE01 9.2-Feet (2.8 Meters) Extension Cable for Sigma 1/ Sigma 5 Battery Charger

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-26*