Lokithor J401
A cheap, compact pack that covers most cars and gas pickups, with a boost mode and fast USB-C recharging. Worth it for anyone who wants a capable starter without paying brand-name prices.
Amazon $79.95$79.95
The Lokithor J401 is the better jump starter overall, rated 4.2 to 3.7. The Lokithor J401 leads on value. The Hulkman Alpha 85S wins on warranty and features. The Lokithor J401 costs $110.04 less ($79.95 vs $189.99).
Hulkman Alpha 85S
#10 in Trucks and V8sFull review
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
Prices were last checked October 30, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Lokithor J401 for value ($79.95 for its size vs $189.99 for its size).
- 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, IP65).
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 | Lokithor J401 | Hulkman Alpha 85S |
|---|---|---|
| Overall rating | 4.2/5 | 3.7/5 |
| Value 40% | 90 $79.95 for its size | 32 $189.99 for its size |
| Features 35% | 90 manual override, rated to -4 °F, USB-C charging, IP65 | 100 manual override, rated to -40 °F, USB-C charging, IP65 |
| Capacity 15% | 73 74 Wh battery | 73 74 Wh battery |
| Warranty 10% | 0 1-year warranty | 50 2-year warranty |
Specifications
| Lokithor J401 | Hulkman Alpha 85S | |
|---|---|---|
| Starting | ||
| Rated engines | 8.5 L gas, 6.5 L diesel | 8.5 L gas, 6 L diesel |
| Peak amps (maker) | 2,500 A | 2,000 A |
| Cranking amps | 1,500 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 | 74 Wh | 74 Wh |
| USB-C input | 60 W | 65 W |
| Recharge time | 0.8 hours | 1.5 hours |
| USB outputs | USB-C 60 W, USB-A 18 W | USB-C 18 W, USB-A QC3.0 18 W |
| Build | ||
| Flashlight | Yes | Yes |
| Air compressor | No | No |
| Water resistance | IP65 | IP65 |
| Dimensions | 9.45 x 4.19 x 2.36 in | 9.06 x 4.06 x 1.77 in |
| Warranty | 1 year | 2 years |
| Released | 2022-07 | 2020-09 |