Hulkman

Hulkman Alpha85S Space Gray 2000A 74Wh Smart Jump Starter with -40 Start Tech 12V Portable Car Battery Booster

4.7(12)
$179.99$299.99

1369+ bought in the past month

About this item

  • [Start Completely Dead Batteries]: Powerful and safe, this jump starter revives your completely dead car battery in seconds. With 2000 peak amps, it easily jump-starts vehicles up to 8.5L gas or 6.0L diesel engines, delivering up to 60 starts on a single charge.
  • [Pre-Heat Tech for Extreme Cold]: Winter mornings shouldn’t start with a dead battery.Traditional jump starters fail in extreme cold, but our Alpha 85S' Pre-Heat Technology ensures instant power even at -40℉. It intelligently warms up the battery for reliable starts, no waiting needed. Built for harsh winters, it ensures your engine roars to life when you need it most.
  • [Smart Display for Hassle-Free Use]: A user-friendly 3.3-inch smart screen provides real-time updates on operational status, battery level, and potential errors. Jump-start your car effortlessly in just 3 steps.
  • [10-Layer Safety Protection]: Engineered with a fully insulated design and advanced battery management, the Hulkman jump starter offers 10 layers of protection, including spark-proof, mistake-proof, and reverse-polarity safeguards. Jump-start with confidence, free from worries about short circuits or sparks.
  • [0% to 80% in Just 1 Hour]: With cutting-edge 65W Speed Charge Technology, the Alpha 85S recharges from 0% to 80% in just 1 hour and reaches full charge in 90 minutes. A quick 5-minute charge is enough for a single jump-start! (Note: The Hulkman 65W wall charger is not included.)
$179.99
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Product details
BrandHulkman
Battery Cell CompositionLithium Polymer
Voltage12 Volts
Product Dimensions9.06"D x 4.06"W x 1.77"H
Vehicle Service TypeAll of the above

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Customer reviews

4.712 ratings
  1. 575%
  2. 413%
  3. 313%
  4. 20%
  5. 10%
★★★★★

New jump starter

Received two right foot slippers not very happy with purchase, and delivery was late, will be returning, how do you package two of the same slippers for the right foot very poor attention to package two of the same slippers disappointed with purchase!!February 28, 2026✓ Verified purchase

Hulkman Alpha85s was delivered on time, new in box well packaged, 75% charged, worked great Read more

★★★★★

Powerful, great design, easy to use.

Lisa S HillFebruary 5, 2026✓ Verified purchase

This product works. I was skeptical at first because of how small and lightweight the battery is but I’ve used it on two occasions and it works great for starting my 4 cylinder car. (It’s a car I don’t use frequently and the battery dies after a couple of weeks) Read more

★★★★★

JUMP START

Michael GlasperFebruary 12, 2026✓ Verified purchase

Excellent for the road every where you go Read more

★★★☆☆

Did not get the charger

BAMMarch 12, 2026✓ Verified purchase

The product works great, but somehow we didn’t get the adapter to charge it. Read more

★★★★★

Worth a few extra dollars

CustomerJanuary 31, 2026✓ Verified purchase

Awesome units.. have one in three cars and the boat. Read more

★★★★☆

With the Name Hulkman, Shouldn’t it Be Green?

GearmasterOctober 30, 2025

I already have jump starters similar to this one made by Yesper and NOCO, that I keep in my car and motorcycle, and I picked up this charger to keep in one of my trucks, since I have already used my other units to jump some vehicles and my tractor several times, and since we live rural, I feel this is a necessity. This unit claims to be 20000A. I have no way to test this, but this unit seems quite substantial with a lot more heft to this unit, so I believe the claims. This unit is just over 2-pounds and the readout on this is large and feature rich compared to those I have seen on other units, and it tells you battery capacity, as well as the charging and discharging. The dimensions are 9-inches long by 4-inches wide and 2-inches thick. The battery terminal clamps are also nice and burly compared to those offered by competitors. Where the rubber meets the road, or if the proof is in the pudding, is whether this can jump a dead battery. Well, I did not have a dead car battery to test, but I did have a dead Motorcycle battery installed in my lawn tractor that I needed to jump, so I gave this unit a go. It did work, and it worked very well. I believe I could do several jumps before I needed to recharge this because it was down only 10% after the one jump. The instruction manual that comes with this unit is very spartan but adequate to figure out how to use all the features, and it supports fast charging with a fast-charge cable and charger (sold separately). The included LED light, which has a white or red strobe function as well as an SOS flashing feature, is helpful as a marker for a broken-down vehicle. The ability to use it as a power bank with both USB-C and USB-A ports is a nice feature. It’s a very nice unit but quite a bit overpriced as compared to my similarly sized Yesper and NOCO units, which cost less than half the price of this unit. At this price, this unit should also have come with a storage case, but it does not. I also find that removing the port covers is extremely difficult and I need a flathead screwdriver to pry them off. But it is a reliable unit, and the size should work well for both small vehicles as well as very large trucks and tractors. Read more

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★★★★★

Great product for starting my Audi R8

JOHN FARLEYFebruary 5, 2026✓ Verified purchase

Worked as advertised Read more

★★★★★

Works great!

Kris Anderson, The Avid ReaderNovember 27, 2025

I picked up this jump starter to keep in my car. I have an older car, and I like to be prepared. The instruction manual is bare bones. There is enough in it to figure out how to operate the device. It is a sturdy device that measures 9 inches long by 4 inches wide by 1.75 inches tall is a sold item that weighs two pounds (I weighed it on my postage scale). The device has a large readout which I appreciate (makes it easy for me). I like that it shows the battery capacity, so I know when to charge it. This item does jump a dead battery. My neighbor’s car would not start the other day, and it was obvious that it was the battery. I brought out this device to see if it would work. It just takes three steps. It did a great job. The device easily started their battery. I was surprised that the jump used less than ten percent of the devices charge. I like that it is mistake proof. I can also charge devices with this gizmo (with both USB-C and USB-A). It also has a built-in white LED light. There is a red strobe function plus there is a flashing SOS feature. I like that it is fully charged in ninety minutes. This device is a tad pricey but it has great features and performs well. I am glad that I picked up this smart jump starter. Read more

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