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f12_26 | Staff 30.3K Views
May 18, 2026 6:36 PM

LOKITHOR J400 2000A 12V Portable Jump Starter w/ ConnectMax Tech

$33

$80

58% off
+ Free S&Hat Amazon
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Deal Details
Update: This popular deal is still available.

LOKITHOR STORE via Amazon has LOKITHOR J400 2000A 12V Portable Jump Starter w/ ConnectMax Tech (Red) on sale for $59.97 - $26.99 (discount auto applies at checkout) = $32.98. Shipping is free.

Thanks to staff member f12_26 for sharing this deal.
  • Note: Promo code only applies to the Red color option.
About this item:
  • 2000A peak current
  • Designed for gas engines up to 8.0L and diesel engines up to 6.0L
  • ConnectMax system automatically detects clamp connection impedance to the car battery
  • Built with an advanced battery management system (BMS) and smart self-identifying clamps
  • Features 10 safety protections including: spark-proof, reverse polarity, overcharge, overcurrent, short circuit, over-voltage, and temperature protection
  • 3-in-1 design: jump starter, power bank, and 300-lumen LED flashlight (SOS/strobe modes)
  • Smart display screen shows real-time battery status and operation info
  • Fast recharge: 1.5 hours via USB-C (3.0A input)
  • Compact and lightweight (1.5 lbs)

Editor's Notes

Written by Nate650 | Staff
  • Our research indicates that this deal is $14.52 less (30.6% savings) than the next best available price from a reputable merchant with prices starting from $47.50 at the time of this post.
  • 1 year manufacturer warranty
  • Manufacturer product page
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by f12_26 | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is still available.

LOKITHOR STORE via Amazon has LOKITHOR J400 2000A 12V Portable Jump Starter w/ ConnectMax Tech (Red) on sale for $59.97 - $26.99 (discount auto applies at checkout) = $32.98. Shipping is free.

Thanks to staff member f12_26 for sharing this deal.
  • Note: Promo code only applies to the Red color option.
About this item:
  • 2000A peak current
  • Designed for gas engines up to 8.0L and diesel engines up to 6.0L
  • ConnectMax system automatically detects clamp connection impedance to the car battery
  • Built with an advanced battery management system (BMS) and smart self-identifying clamps
  • Features 10 safety protections including: spark-proof, reverse polarity, overcharge, overcurrent, short circuit, over-voltage, and temperature protection
  • 3-in-1 design: jump starter, power bank, and 300-lumen LED flashlight (SOS/strobe modes)
  • Smart display screen shows real-time battery status and operation info
  • Fast recharge: 1.5 hours via USB-C (3.0A input)
  • Compact and lightweight (1.5 lbs)

Editor's Notes

Written by Nate650 | Staff
  • Our research indicates that this deal is $14.52 less (30.6% savings) than the next best available price from a reputable merchant with prices starting from $47.50 at the time of this post.
  • 1 year manufacturer warranty
  • Manufacturer product page
  • Don't have Amazon Prime? Students can get a free 6-Month Amazon Prime trial with free 2-day shipping, unlimited video streaming & more.
  • If you're not a student, there's also a free 1-Month Amazon Prime trial available.

Original Post

Written by f12_26 | Staff

Community Voting

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Top Comments

Community Reviews

The LOKITHOR J400 is a compact jump starter that stands out for strong starting power and a useful boost mode, with reports of handling deep discharges, dual battery Duramax setups, V6s, and even V8s. The brand also has a long track record of holding up well, and the checkout discount applies as advertised. Caveats include a possible model mix up with the J401, oversized clamps that can be awkward on modern battery terminals, and a voltage readout that runs off. It looks like a handy backup for vehicles, boats, and hybrids when space matters.

  • The checkout promo can apply as described, even when it initially seems unlikely.

  • The jump starter can work for deeply discharged batteries in testing-focused comparisons.

  • The unit's boost feature is considered important for starting totally dead batteries.

  • The compact design can be more practical than jumper cables for keeping one per hybrid vehicle.

  • The Amazon price can end up about $20 higher than the thread's advertised price.

  • The received unit may be a different model, such as a J401 instead of the listed J400.

  • The built-in multimeter voltage reading can be inaccurate compared with other multimeters.

  • The clamp size can make it difficult to connect on modern cars with accessories attached to battery terminals.

Common Questions (5)

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53 Comments

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May 28, 2026 11:29 AM
890 Comments
Joined Oct 2020
realmccoy12406May 28, 2026 11:29 AM
890 Comments
In for two. One for each hybrid vehicle.
Cheaper, smaller and
more useful than cables.
Pro
Deal Editor
May 29, 2026 5:55 PM
13.7K Comments
Joined Jun 2008
Nate650
Pro
Deal Editor
May 29, 2026 5:55 PM
13.7K Comments
Deal is still active.
May 29, 2026 6:03 PM
44 Comments
Joined Apr 2026
MaxEfficiencyMay 29, 2026 6:03 PM
44 Comments
Don't know about this brand, but this is a great item to have for emergencies.
May 29, 2026 6:18 PM
9.5K Comments
Joined Dec 2014
LEOMHK1.0May 29, 2026 6:18 PM
9.5K Comments
Quote from LikeABadPenny View quoted comment :
Name checks out LMAO
Well... Chinese companies are getting better in naming their products.
May 29, 2026 6:26 PM
94 Comments
Joined Apr 2008
adroit4May 29, 2026 6:26 PM
94 Comments
Thank you
May 30, 2026 11:16 PM
540 Comments
Joined Jan 2015
san-melMay 30, 2026 11:16 PM
540 Comments
Gotta love the Chinese branding to appeal to the US market.
May 31, 2026 3:02 AM
33 Comments
Joined Nov 2013
ShirshakbtMay 31, 2026 3:02 AM
33 Comments
damnit I knew I should've trademarked that name.

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Jun 4, 2026 8:01 PM
5.5K Comments
Joined Jun 2010
FALJun 4, 2026 8:01 PM
5.5K Comments
Quote from HeyGuysChrisFixHere View quoted comment :
Always watch Project Farm review videos before buying things like this. I got the GOOLOO GT4000S that he showed worked well for the price with a lot of power to crank a V8 easily, and that was one of the few that could start a totally dead battery. Most jump packs like this one won't start a car if the battery is drained below something like 8V? The GT4000S is the least expensive decent power jump pack that can work on a totally dead battery which is why I bought it last year after watching his video. I've used it to jump a V6 and a V8 without recharging it yet, and it still has 82% battery capacity left.
The gooloo gt4 and loki lfp are the best bet. Most cheap jumpstarter are terrible. My $50 Duracell agm is more reliable for 10 years compared to cheapie jumpstart.

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