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doublehelixx | Staff 9.5K Views
Jul 3, 2026 7:40 PM

LOKITHOR J2250 PRO 2250A 12V LiFePO4 Jump Starter w/ ConnectMax

$65

$130

50% off
+ Free S&Hat Amazon
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Deal Details
LOKITHOR Online via Amazon has LOKITHOR J2250 PRO 2250A 12V LiFePO4 Jump Starter w/ ConnectMax (J401) for $129.95 - $64.98 when you apply promo code J2250050 at checkout = $64.97. Shipping is free.

Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.

Thanks to Deal Hunter doublehelixx for finding this deal.

About this item:
  • Product Dimensions: 4.02"D x 2.28"W x 8.38"H
  • 2250A peak power: Starts up to 8.0L gas / 6.0L diesel engines, even in extreme temperatures (-4°F to 140°F).
  • LiFePO4 battery tech: Long lifespan (2000+ full cycles), safer and more stable than traditional lithium or lead-acid batteries.
  • Fast 60W charging + power bank: Fully recharges in ~1 hour, can charge phones, tablets, and laptops via USB-C/USB-A.
  • Durable & safe design: IP65 waterproof/dustproof with 10 protection systems (spark-proof, reverse polarity, overcurrent, etc.).
  • Smart + portable kit: ConnectMAX ensures reliable starts; includes LED flashlight (6 modes) and full accessory pack for travel use.

Editor's Notes

Written by Neo45 | Staff

Original Post

Written by doublehelixx | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
LOKITHOR Online via Amazon has LOKITHOR J2250 PRO 2250A 12V LiFePO4 Jump Starter w/ ConnectMax (J401) for $129.95 - $64.98 when you apply promo code J2250050 at checkout = $64.97. Shipping is free.

Note: You must be logged in to clip coupons and apply promo codes. If a code doesn't work right away, try applying it a few times across different interfaces such as mobile or desktop, as some codes may not apply consistently. If issues persist, refresh the page, re-enter the code, or revisit the cart before checking out.

Thanks to Deal Hunter doublehelixx for finding this deal.

About this item:
  • Product Dimensions: 4.02"D x 2.28"W x 8.38"H
  • 2250A peak power: Starts up to 8.0L gas / 6.0L diesel engines, even in extreme temperatures (-4°F to 140°F).
  • LiFePO4 battery tech: Long lifespan (2000+ full cycles), safer and more stable than traditional lithium or lead-acid batteries.
  • Fast 60W charging + power bank: Fully recharges in ~1 hour, can charge phones, tablets, and laptops via USB-C/USB-A.
  • Durable & safe design: IP65 waterproof/dustproof with 10 protection systems (spark-proof, reverse polarity, overcurrent, etc.).
  • Smart + portable kit: ConnectMAX ensures reliable starts; includes LED flashlight (6 modes) and full accessory pack for travel use.

Editor's Notes

Written by Neo45 | Staff

Original Post

Written by doublehelixx | Staff

Community Voting

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Top Comments

Phixion35
477Comments
30Reputation
Having this type of battery is great, too bad they are charging more for it when it's pretty cheap these days in the power station realm. Still a solid buy considering the unit provides real-time battery voltage monitoring of the battery the clips are connected to. Almost no jump starters offer that except for the Noco GB150 and a unit from Oxilam that I've seen, also one other off brand that has it built into the connector on the clips that connects to the jump starter. This Lokithor unit also supports 65w PD output via the USB-C port which not many of these do.
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Community Reviews

The LOKITHOR J2250 PRO is a compact LiFePO4 jump starter that stands out for real time battery voltage monitoring and 65W USB C power delivery, features that are uncommon in this class. The battery is described as a larger, high discharge design with beefier jump cables, and the older version has been used to revive dead batteries on a 3.0 liter inline six and a 3.5 liter V6. The main concern is reliability, with reports of units failing after a few starts or needing replacement. It looks strongest for drivers who want extra diagnostics and USB C output in a portable starter.

  • The unit provides real-time battery voltage monitoring for the battery connected to the clamps.

    Phixion35

  • The jump starter supports 65W USB-C PD output, which is uncommon on many jump starters.

    Phixion35

  • The LiFePO4 design is described as engineered for higher discharge C rate rather than matching power-station battery behavior.

    fithos

  • The brand line has been used to jump large engines and diagnose a bad battery using the app within a warranty period.

    billabongrob

  • A purchased unit reportedly died after only three jump starts, raising reliability concerns for the brand.

    89turboii

  • Capacity and performance claims may be overstated, based on criticism that the battery rating is overestimated.

    89turboii

  • Swelling risk is raised for lithium-based jump starters, especially when stored in hot environments or kept at full charge.

    fithos

  • Reliability issues are reported again after replacing the first unit, suggesting persistent problems with the product line.

    timogsu

Common Questions (5)

AI-generated summary based on comments from the community. Updated ago

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22 Comments

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Jul 4, 2026 4:22 AM
477 Comments
Joined Jul 2020
Phixion35Jul 4, 2026 4:22 AM
477 Comments

Our community has rated this post as helpful. If you agree, why not thank

Having this type of battery is great, too bad they are charging more for it when it's pretty cheap these days in the power station realm. Still a solid buy considering the unit provides real-time battery voltage monitoring of the battery the clips are connected to. Almost no jump starters offer that except for the Noco GB150 and a unit from Oxilam that I've seen, also one other off brand that has it built into the connector on the clips that connects to the jump starter. This Lokithor unit also supports 65w PD output via the USB-C port which not many of these do.
Last edited by Phixion35 July 3, 2026 at 09:40 PM.
2
Jul 4, 2026 5:21 AM
2.7K Comments
Joined Jan 2009
fithosJul 4, 2026 5:21 AM
2.7K Comments

Our community has rated this post as helpful. If you agree, why not thank

Quote from Phixion35 View quoted comment :
Having this type of battery is great, too bad they are charging more for it when it's pretty cheap these days in the power station realm. Still a solid buy considering the unit provides real-time battery voltage monitoring of the battery the clips are connected to. Almost no jump starters offer that except for the Noco GB150 and a unit from Oxilam that I've seen, also one other off brand that has it built into the connector on the clips that connects to the jump starter. This Lokithor unit also supports 65w PD output via the USB-C port which not many of these do.
These are definitely not the same battery as those from power stations. The chemistry may be the same but the battery design is different. Lifepo4 battery normally have low C discharge rate, which is one reason they are rated highly for safety. These are not low C discharge rate battery.

Also at this price is thing is a steal actually. It have a pretty big size battery (over 55 WH I believe) which will be bigger than any of sub $60 jump starter listed recently. It has 65w pd in/out as the other person here stated. It has a built in volt meter. It has a beefy jump cables (8 or 6 sized).
Last edited by fithos July 3, 2026 at 10:31 PM.
1
Jul 4, 2026 5:37 AM
477 Comments
Joined Jul 2020
Phixion35Jul 4, 2026 5:37 AM
477 Comments
Quote from fithos View quoted comment :
These are definitely not the same battery as those from power stations. The chemistry may be the same but the battery design is different. Lifepo4 battery normally have low C discharge rate, which is one reason they are rated highly for safety. These are not low C discharge rate battery.Also at this price is thing is a steal actually. It have a pretty big size battery (over 55 WH I believe) which will be bigger than any of sub $60 jump starter listed recently. It has 65w pd in/out as the other person here stated. It has a built in volt meter. It has a beefy jump cables (8 or 6 sized).
That's good info. While I know battery design won't be the same, didn't know that these don't exactly behave the same way either. I'd imagine these are a bit more forgiving in a hot trunk or glovebox than traditional portable jump boxes out there?
Jul 4, 2026 9:54 AM
2.7K Comments
Joined Jun 2007
89turboiiJul 4, 2026 9:54 AM
2.7K Comments
Quote from fithos View quoted comment :
These are definitely not the same battery as those from power stations. The chemistry may be the same but the battery design is different. Lifepo4 battery normally have low C discharge rate, which is one reason they are rated highly for safety. These are not low C discharge rate battery.

Also at this price is thing is a steal actually. It have a pretty big size battery (over 55 WH I believe) which will be bigger than any of sub $60 jump starter listed recently. It has 65w pd in/out as the other person here stated. It has a built in volt meter. It has a beefy jump cables (8 or 6 sized).
You sure about that? They are def not lithium titanate and the lokithor china brand isn't reputable. We picked one up and three starts and the thing died. Our avapow held up for two years in a commercial use setting not sure if the new ones are as good as the older ones seems to be a race to the bottom in terms of overrating capacity with this brand tho.
Pro
Jul 4, 2026 11:08 AM
2.6K Comments
Joined Feb 2024
Papi-Chino
Pro
Jul 4, 2026 11:08 AM
2.6K Comments
Loki god mischief & Thor god thunder join forces to create a car battery jumper. What type of black magic they got in there?
2
1
Jul 4, 2026 4:28 PM
2.7K Comments
Joined Jan 2009
fithosJul 4, 2026 4:28 PM
2.7K Comments
Quote from 89turboii View quoted comment :
You sure about that? They are def not lithium titanate and the lokithor china brand isn't reputable. We picked one up and three starts and the thing died. Our avapow held up for two years in a commercial use setting not sure if the new ones are as good as the older ones seems to be a race to the bottom in terms of overrating capacity with this brand tho.
I'm fairly sure.
Lithium Titanate is a different chemistry altogether. We are talking about Lifepo4 batteries. Replying to Phixion35 I was saying these are Lifepo4 battery but not the same kind as those use in power stations. These are engineer specifically for high discharge C rate so the prices should not be comparable because they are different battery designs.
Last edited by fithos July 4, 2026 at 09:33 AM.
1
Jul 4, 2026 11:24 PM
986 Comments
Joined Jul 2005
JediWolverineJul 4, 2026 11:24 PM
986 Comments
Quote from fithos View quoted comment :
I'm fairly sure.
Lithium Titanate is a different chemistry altogether. We are talking about Lifepo4 batteries. Replying to Phixion35 I was saying these are Lifepo4 battery but not the same kind as those use in power stations. These are engineer specifically for high discharge C rate so the prices should not be comparable because they are different battery designs.
Any reliable jump starter you can recommend? All of the Li-ion jump starter I have (Anker, Ravpower, Gooloo) eventually swells and can't hold a charge anymore.

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Jul 5, 2026 1:41 AM
2.7K Comments
Joined Jan 2009
fithosJul 5, 2026 1:41 AM
2.7K Comments
Quote from JediWolverine View quoted comment :
Any reliable jump starter you can recommend? All of the Li-ion jump starter I have (Anker, Ravpower, Gooloo) eventually swells and can't hold a charge anymore.
I didn't even know that Ravpower makes a jump starter. If you are saying that you have owned these jump starters and the all swell in the end then you might live in too hot an environment and/or you are storing these at full charge. If that is the case your best option is Super Capacitor Jump Starter or the newer Sodium Ion jump starter. They are both more weather resistant than Lipo jump starters.
I can attest for the Super Capacitor being weather resistant as I have one in the car for years.
Last edited by fithos July 4, 2026 at 06:44 PM.
1
Pro
Jul 5, 2026 4:04 AM
2.6K Comments
Joined Feb 2024
Papi-Chino
Pro
Jul 5, 2026 4:04 AM
2.6K Comments
The stupid name is dead give away it's made in china.
1
1
Jul 5, 2026 4:36 AM
520 Comments
Joined Nov 2019
MaroonPocket778Jul 5, 2026 4:36 AM
520 Comments
In for one. I have thr older slower one and it jumped a completely dead 4v battery on a 3L inline 6 cyl....
Jul 5, 2026 12:00 PM
45 Comments
Joined Aug 2013
billabongrobJul 5, 2026 12:00 PM
45 Comments

Our community has rated this post as helpful. If you agree, why not thank

I know it's not the same exact model but I did buy the lower LOKITHOR JT400. I've used it to jump my vintage Lincoln with a 7.5L v8 a handful of times. I've jumped neighbors cars and even used the app to test my alternator and diagnose a bad battery within my warranty period on my Lexus gx460. At this point, I'm a believer and I don't care where it was manufactured. YMMV
1
1
Jul 5, 2026 1:03 PM
330 Comments
Joined Jan 2012
brybo86Jul 5, 2026 1:03 PM
330 Comments
Quote from 89turboii View quoted comment :
You sure about that? They are def not lithium titanate and the lokithor china brand isn't reputable. We picked one up and three starts and the thing died. Our avapow held up for two years in a commercial use setting not sure if the new ones are as good as the older ones seems to be a race to the bottom in terms of overrating capacity with this brand tho.
I could care less about the claimed capacity or amp output.

What matters is output per dollar.
Jul 5, 2026 1:19 PM
4K Comments
Joined Nov 2008
CollegeRamenEatJul 5, 2026 1:19 PM
4K Comments
Loki AND Thor? wow what a deal
Pro
Jul 5, 2026 2:07 PM
2.6K Comments
Joined Feb 2024
Papi-Chino
Pro
Jul 5, 2026 2:07 PM
2.6K Comments
Quote from CollegeRamenEat View quoted comment :
Loki AND Thor? wow what a deal
Yup, the god of thunder & god of mischief unite to bring you a battery jump starter. From the creative brain trust coming outta the peeps republic y'all.
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Jul 5, 2026 2:56 PM
58 Comments
Joined Jan 2020
SmilingField373Jul 5, 2026 2:56 PM
58 Comments
Everyone should have one - even if you buy a cheaper one. No reason to depend on others for a jump with these things available and so easy (and safer) to use.

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