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Deal.ai › Stanley Jump Starters
Stanley FatMax
Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC)
Stanley FatMax

Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC)

4.3(490 ratings)

Best price now

$69.39at WalmartVerified

31% under what the other stores charge

Compared across 4 stores. Prices are checked against each store and labelled with when.

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Our take on the Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC)

The Stanley FatMax LJ12FC is a portable lithium jump starter rated at 1200 peak amps, enough for cars and trucks up to 8 cylinders. It doubles as a power bank with a 15W USB-A port, a 30W USB-C PD port and a bright LED light, and it comes with powder-coated metal clamps and a carrying case. Reverse polarity protection guards against hooking the cables up wrong. At $69.97 at The Home Depot as of November 8, 2026, it sits at the low end of what it has sold for recently.

Best forDrivers who want a jump starter kept in the trunkOwners of V6 and V8 cars and trucksCampers and road-trippers who need USB chargingAnyone replacing an old lead-acid jump box
Pros
  • 1200 peak amps covers cars and trucks up to 8 cylinders
  • USB-C PD 30W and USB-A 15W ports charge phones and tablets
  • Reverse polarity protection reduces the risk of a wrong connection
  • Bright LED light for night-time repairs
  • Metal clamps and a carrying case included
  • Compact enough to store in a glovebox or trunk
Cons
  • Peak amps are a marketing figure; real cranking output is lower
  • Needs recharging periodically to stay ready
  • 1-year warranty is short for the category
  • No built-in air compressor, unlike some rivals

Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC) prices at every store

  • WalmartNew

    In stock

    $69.39Verified
    Visit Walmart
  • The Home DepotNew

    In stock

    $69.97Free shippingVerified
    Visit The Home Depot
  • StaplesNew

    In stock

    $100.99Free shippingVerified
    Visit Staples
  • Best BuyNew

    In stock

    $104.99Free shippingVerified
    Visit Best Buy

Also available at

  • WalmartCheck price at Walmart

Store links may earn us a commission. Some prices via Klarna.

Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC) price history

Lowest price we've seen: $69.97 on Nov 8 at The Home Depot. Tracked across 4 stores since Nov 8.

What reviewers say

  • 4.3 / 5490 ratings

Owners rate it 4.3 out of 5 across 490 ratings and mostly praise its starting power and small size. Complaints tend to center on battery drain over time and the short warranty.

What people mention
  • Starting powerPraisedOwners say it fires up V6 and V8 engines reliably.
  • SizePraisedReviewers like that it fits in a glovebox or trunk.
  • USB chargingPraisedThe USB-A and USB-C ports get used to top up phones.
  • Battery lifeCriticisedSome owners report the unit losing charge or dying within a year.
  • Peak ampsMixedShoppers note the 1200 figure is peak, not cranking, amps.
  • WarrantyCriticisedThe 1-year warranty is called short for a jump starter.

About the Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC)

The Stanley FATMAX LJ12FC 1200 Peak Amp Lithium Jump Starter, is a portable jump starter and USB power bank in a small take-along size. 1200 peak amps of starting power instantly jump starts cars and trucks up to 8-cylinders. Powder-coated metal clamps are included. The reverse polarity protection assures that jumper cables are connected correctly. The mini powerpack features / USB-A(15W), USB-C PD (30W), Power In & Out. The bright LED light helps with repairs after dark. 1-year warranty. Includes an attractive, handy carrying case.

Specifications

color
YellowSource

Questions and answers

Will it start a V8 truck?
Stanley rates it for engines up to 8 cylinders, and owners report starting V6 and V8 trucks. Very large or heavily drained diesel engines may need a bigger unit.
How often do I need to recharge it?
Stanley recommends topping it up every few months so it is ready when needed. Lithium jump starters self-discharge slowly, so a monthly check before a long trip is sensible.
Can it charge my phone?
Yes. It has a 15W USB-A port and a 30W USB-C PD port, both usable as power in and out.
What comes in the box?
The jump starter, powder-coated metal clamps, a USB charging cable and a carrying case.
Is $69.97 a good price?
That is the best new price across 4 stores as of November 8, 2026, and it sits at the low end of its recent range. It is a fair buy at that price.
Does it have an air compressor?
No. This model is a jump starter and power bank only; Stanley sells separate units with built-in inflators.
Where is the Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC) cheapest?
At Walmart, for $69.39, 31% under what the other stores charge, as of our latest check.
What do buyers say about the Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC)?
Rated 4.3 out of 5 from 490 ratings.
Where can I buy the Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC)?
4 stores we checked sell it, including The Home Depot, Staples, Best Buy, Walmart.

Stores we've priced the Stanley 1200 Peak Amp Lithium Jump Starter with USB & Case (LJ12FC) at

  • Best Buy deals and prices
  • Home Depot deals and prices
  • staples.com deals and prices
  • Walmart deals and prices