Lokithor J401

Last updated: October 22, 2026

Lokithor J401
4.2/5#1 of 15 in trucks and v8s jump starters
4.2

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.

  • 8.5 L gas, 6.5 L dieselEngines
  • 74 WhBattery
  • YesOverride
  • 1 yearWarranty
Check price at Amazon$79.95

Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.

Pros
  • Starts V8 gas engines up to 8.5 L and diesels up to 6.5 L for under $80
  • Boost mode jumps a battery that’s completely flat
  • Recharges in under an hour from a USB-C laptop charger, or from the car’s 12 V socket
  • IP65 water and dust resistance
  • Rated to work down to -4 °F
Cons
  • Short warranty (12 to 18 months depending on where it’s stated)
  • Maker’s US website was unreachable, so support relies on Amazon

How it scores

The rating comes from 4 measured or published factors, each scored 0-100 against fixed reference points for its engine size. How we rank explains each one.

Specifications

Model numberJ401
Starting
Rated engines8.5 L gas, 6.5 L diesel
Peak amps (maker)2,500 A
Cranking amps1,500 A
Voltage12 V
Manual overrideYes
Lowest operating temperature-4 °F
Battery and charging
ChemistryLithium-ion
Capacity74 Wh
USB-C input60 W
Recharge time0.8 hours
USB outputsUSB-C 60 W, USB-A 18 W
Build
FlashlightYes
Air compressorNo
Water resistanceIP65
Dimensions9.45 x 4.19 x 2.36 in
Warranty1 year

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