Whats the cold crank amps?

Cold Cranking Amps (CCA) refers to the amount of power that a battery can discharge for 30 seconds at 32°F (0°C). It really is the amount of power you need to start your engine in any weather except winter. However, CCA is used to rate the starting performance of lead-acid battery products' in cold climates, and we normally will not use it to rate your device, which is a lithium-ion jump starter. Generally, we will use the peak current to measure the jump starter’s performance. Therefore, the peak current of Alpha 100 is 4000 Amps.

The hulkman website specs claims 32000mah(118wh) capacity. which value is actually correct given (mah)*(v)/1000 = (wh) using 12v?

Not sure what your after with all the math calculations. In real world started a heavy duty 2500hd diesel that was sitting for 5 plus months. If you know diesel trucks then you know this thing has plenty of cranking amps. Pie =3.14 lol

How long are the jumper cables?

Thank you for your interest in HULKMAN! The cable length of 40cm/15.7in for each side, is sufficient to reach both battery terminals for almost all car models.

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Hulkman Alpha100 Space Gray,4000A 118.4Wh Smart Jump Starter with -40℉ Start Tech,12V Portable Car Battery Booster,3.3" LED Display,PD65W in&Out Power Pack,Jumper Cables for up to 10L Gas/10L Diesel

Hulkman Alpha100 Space Gray,4000A 118.4Wh Smart Jump Starter with -40℉ Start Tech,12V Portable Car Battery Booster,3.3" LED Display,PD65W in&Out Power Pack,Jumper Cables for up to 10L Gas/10L Diesel

Product ID: 325315009

Details

Battery Cell Composition
Lithium
Brand
Hulkman
Product Dimensions
10.91"D x x
Vehicle Service Type
ATV Motorcycle
Voltage
12 volts

⚡4000A peak jump power

🔋118.4Wh battery capacity

❄️-40℉ Pre-Heat Tech

Description

🚀 Power up your peace of mind—jumpstart like a pro, anytime, anywhere!

POWERHOUSE PERFORMANCE - 4000A peak current jump-starts gas and diesel engines up to 10L—be ready for any ride.
SMART INTUITIVE CONTROL - 3.3" LED display guides you step-by-step with real-time battery status and safety alerts.
RUGGED READY FOR ADVENTURE - IP65-rated, dust and water-resistant design built tough for roadside rescues and outdoor escapades.
UNMATCHED COLD WEATHER RELIABILITY - Pre-Heat Tech ensures instant starts even at -40℉, so winter won’t slow you down.
RAPID RECHARGE MULTI DEVICE POWER - 65W USB-C PD charges laptops fast and powers your devices on the go—never run out of juice.

The Hulkman Alpha100 is a cutting-edge 4000A smart jump starter with a robust 118.4Wh lithium polymer battery, featuring advanced -40℉ Pre-Heat Technology for reliable cold-weather starts. Its 3.3" LED display offers real-time guidance and safety alerts, while the 65W USB-C PD port doubles as a fast laptop charger and power bank. Designed with 10-layer safety protection and an IP65-rated rugged casing, it’s the ultimate portable power solution for vehicles up to 10L gas or diesel engines, ensuring you’re never stranded in any condition.

Specifications

ASIN	B08TQFHW1C
Amperage	4000 A
Battery Capacity	32000 milliamp_hours
Battery Type	Lithium Polymer
Best Sellers Rank	#754,567 in Automotive ( See Top 100 in Automotive ) #961 in Jump Starters
Brand Name	Hulkman
Compatible with Vehicle Type	ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft
Customer Reviews	4.5 4.5 out of 5 stars (328)
Included Components	12V Ergonomic Needle-Nose Battery Clamps, Alpha 100 Jump Starter, DC 12V Cigarette Lighter Adapter, USB-C Cable (OUT)
Item Dimensions D x W x H	10.91"D x 4.89"W x 2.92"H
Item Weight	3.8 pounds
Manufacturer	HULKMAN
Manufacturer Part Number	Alpha 100
Manufacturer Warranty Description	2 Year Warranty
Model Number	Alpha 100
Peak Output Current	4000 A
Specification Met	Partial compliance with industry specifications
UPC	761062119504
Voltage	12 volts

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