Screenshot of the Amazon product listing (source). Not our photo.
HULKMAN · Jump Starters
HULKMAN Alpha85 review: 3.9/5 from the spec sheet
2000 A smart jump starter with a 3.3-inch status display, 74 Wh pack, 65 W USB-C fast charging and a 15 V DC output.
Fits: 12 V vehicles; HULKMAN's spec page lists clamps, USB-C cable and 12 V cigarette adapter in the box — the 65 W wall charger is not on that list
View on AmazonASIN B08M41FX48
average of 5 criteria
Score is calculated from the manufacturer's published specifications. BaniCar has not handled this unit. Specs and availability change — verify on the listing.
Safety note: Jump starters deal with high current. Follow the manufacturer's clamp order and engine-size limits; check the manual before use.
Verdict
The jump starter that tells you what is going on: the screen shows charge and error codes instead of blinking LEDs. Worth it for people who hate guessing; pure amp hunters get more from GOOLOO.
Pros & cons
Pros
- 3.3-inch display shows battery percentage and plain-language error codes
- 65 W USB-C input recharges 0–80% in about an hour
- 15 V DC output powers 12 V accessories
- IP65 with a 24-month warranty
Cons
- 2000 A is half the GOOLOO GP4000's rating at a higher list price
- Working range bottoms out at -5°F; the Alpha85S exists for colder climates
- HULKMAN's spec page does not list the 65 W wall charger among included items
- Heavier than the GBX45 (2.57 vs 2.16 lb) for more capacity
Best for
- Owners who want clear on-screen diagnostics
- Half-ton gas and small-diesel truck drivers
Specifications (as published by HULKMAN)
| Peak amps | 2000 A |
|---|---|
| Battery | 20,000 mAh / 74 Wh lithium polymer |
| Engine size | Gas up to 8.5 L / diesel up to 6.0 L (12 V) |
| Jumps per charge | Up to 60 |
| Display | 3.3-inch LCD showing charge level and error codes |
| USB c | In: 65 W (16.4 V 4 A) or PD 18 W; out: PD 18 W |
| USB a | QC3.0 18 W |
| Dc out | 15 V 10 A (150 W max) |
| Recharge | 0–80% in 1 h, full in 90 min on 65 W; 5 min of charge for one jump |
| IP rating | IP65 |
| Operating temperature | -5°F to 113°F working; -40°F to 131°F storage |
| Weight | 2.57 lb |
| Dimensions | 9.64 × 4.05 × 1.81 in |
| Standby | Holds a full charge up to 18 months |
| Warranty | 24 months |
Key specs: 2000 A · 74 Wh · 8.5 L gas / 6.0 L diesel · 3.3" display · 65 W USB-C in · 24-mo warranty
Frequently asked questions
Does the Alpha85 come with the 65 W fast charger?
HULKMAN's specification page lists the jump starter, clamps, USB-C cable, 12 V cigarette adapter and warranty card. Check the specific listing, since some bundles add the wall charger.
Can I use it on a frozen battery?
No jump starter maker recommends that. Let the battery thaw and inspect it for cracks before attempting a jump; a frozen lead-acid battery can rupture.
What does the display show?
Battery percentage, charging status and error codes such as reverse polarity or a battery too low to detect, per HULKMAN.
Compare with
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Sources
- HULKMAN Alpha85 product page (accessed Oct 16, 2026)
- HULKMAN Alpha 85 specifications (accessed Oct 16, 2026)
- HULKMAN warranty page (accessed Oct 16, 2026)
- Amazon listing (ASIN only) (accessed Oct 16, 2026)
- HULKMAN product page
Evidence type: published specs (no hands-on). Last updated Oct 16, 2026.