HulkmanSigma 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

Received the Hulkman Sigma 5 today. First impressions - Well Packaged. After you register the charger on the Hulkman website you get an extra year added on the 2 year warranty ! Good Quality housing and cords. Hulkman is using 14 awg wire with good solid insulation. My Ctek 7002 uses 18 awg wire for the load side going to the car battery. The Sigma is all automatic. You don't have to remember the stages of the charging cycles or what each charging cycle means in the charging process.If you have the sigma 5 mounted under the hood and just want to plug in the ac to the charger with the power cord exposed from the front of the vehicle, it remembers what charging program you used before and automatically starts it's charge cycle per it's own algorithms. There is no manual intervention needed after plugging the charger into AC. It's truly a connect and forget charger. My Ctek 7002 has the same capability.My Ctek 7002 is a great charger. The sigma 5 is trailing right behind the Ctek 7002. The Ctek 7002 is$129.99 and 7 amps. The Hulkman is 5 amps and was on sale for $47.00 and now its back up to $69.99 and it comes with a good copper clamps set and an eyelet connector set just like Ctek 7002. The Sigma 5 directions are simple and straight forward. It also came with a wall bracket and screws. Ctek 7002 did not come with a mounting bracketThe Hulkman does not show the actual stages of the charge cycle like the Ctek 7002. The Sigma 5 has an icon of a battery with indicators stating how full the battery is while charging. The Sigma 5 has a large display of the actual Battery voltage which I like. I have not used the recondition cycle yet so I will update this review after I do so. I recommend this charger for the batteries it will accommodate as stated in the description on Amazon.

Review Update: 12/20/2024Just 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.

This unit feels well built and rugged. The size is not too big and it was very easy to mount it to the wall with the provided base. I was able to revive a dead battery and I was able to recharge it. I had and I plan to use this to tend to my battery over the winter.

Battery repair mode saved my golf cart batteries. Below zero temps for weeks, thought I killed them. Trickle charger is perfect. Good price Great product. Bought it because my Hulkman jump starter is so good.

Why did you pick this product vs others?:High quality charger with some limitations.Pros- Solid build, heavy-quality connections-long cables-comes with nice alligator clamps and ring terminals-nice wall mount bracket that allows for cable storage with a space to clamp alligator clamps-clear bright display that dims automatically-restore funtion requires a long press of the bottom button, making it unlikely that it could be inadvertently activated, (which could be dangerous or ruin your battery if it is not the correct type)Cons-no adjustability other than preset charge profiles-no indication of amperage or which charging stage is active at any time-proprietary connection makes finding extra ring teminal harnesses difficult though they are much better that common SAE connectors-No blutooth connection, which I consider a minor issue at $45, but is a shortcoming at full priceUsing it to charge a LiFePo4 battery it charges to 14.3V. This is ok, but you can not change any change any of the parameters. At the $45 that I paid it is a good deal. If it is full price $100 there are better options as far as adjustability. Those are Blue and include bluetooth, but no alligator clamps.

I like that it displays the voltage, great product. Mounting bracket is great.

They worked great on my motorcycle battery