TOPDON JS3000
A truck-capable pack for gas engines up to 9 liters that doubles as a 45 W USB-C laptop power bank. Worth it if you want TOPDON quality and a carry case.
Amazon $139.99$139.99
The TOPDON JS3000 is the better jump starter overall, rated 3.9 to 3.7. The TOPDON JS3000 leads on value and capacity. The Hulkman Alpha 85S wins on warranty and features. The TOPDON JS3000 costs $50 less ($139.99 vs $189.99).
Prices were last checked November 11, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Hulkman Alpha 85S
For drivers in hard-winter states with cars, SUVs or gas pickups up to a V8. The pre-heat is what you pay extra for over the Alpha 85.
Amazon $189.99$189.99
Which should you buy?
- Choose the TOPDON JS3000 for value ($139.99 for its size vs $189.99 for its size) and capacity (88.8 Wh battery vs 74 Wh battery).
- Choose the Hulkman Alpha 85S for warranty (2-year warranty vs 1-year warranty) and features (manual override, rated to -40 °F, USB-C charging, IP65 vs manual override, rated to -4 °F, USB-C charging, IP54).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every trucks and v8s jump starter; a clear win is highlighted. How we rank explains each one.
| Factor weight | TOPDON JS3000 | Hulkman Alpha 85S |
|---|---|---|
| Overall rating | 3.9/5 | 3.7/5 |
| Value 40% | 58 $139.99 for its size | 32 $189.99 for its size |
| Features 35% | 90 manual override, rated to -4 °F, USB-C charging, IP54 | 100 manual override, rated to -40 °F, USB-C charging, IP65 |
| Capacity 15% | 98 88.8 Wh battery | 73 74 Wh battery |
| Warranty 10% | 0 1-year warranty | 50 2-year warranty |
Specifications
| TOPDON JS3000 | Hulkman Alpha 85S | |
|---|---|---|
| Starting | ||
| Rated engines | 9 L gas, 7 L diesel | 8.5 L gas, 6 L diesel |
| Peak amps (maker) | 3,000 A | 2,000 A |
| Cranking amps | 750 A | - |
| Voltage | 12 V | 12 V |
| Manual override | Yes | Yes |
| Lowest operating temperature | -4 °F | -40 °F |
| Battery and charging | ||
| Chemistry | Lithium-ion | Lithium-ion |
| Capacity | 88.8 Wh | 74 Wh |
| Capacity (mAh) | 24,000 mAh | - |
| USB-C input | 45 W | 65 W |
| Recharge time | - | 1.5 hours |
| USB outputs | USB-C 45 W, USB-A QC 18 W, USB-A 5 V/2 A, 16.8 V DC 10 A | USB-C 18 W, USB-A QC3.0 18 W |
| Build | ||
| Flashlight | Yes | Yes |
| Air compressor | No | No |
| Water resistance | IP54 | IP65 |
| Dimensions | 11.18 x 5.79 x 4.72 in | 9.06 x 4.06 x 1.77 in |
| Warranty | 1 year | 2 years |
| Released | 2024-01 | 2020-09 |