Will it start a diesel truck?

Yes. WOLFBOX rates it for 12V gasoline and diesel engines up to 10L, which covers most pickups and light commercial diesels. Very large or stubbornly cold engines may still need a second attempt or a warm battery.

How long does it take to recharge?

About 1.3 hours on the 65W USB-C input with a suitable charger. A standard 5V phone charger will take much longer, so use a USB-C PD adapter.

Can it charge a laptop?

Yes. The USB-C port delivers up to 65W output, enough for most laptops, and there is a QC3.0 USB-A port for phones and accessories.

Does it work in cold weather?

WOLFBOX rates operation from -4°F to 140°F. Lithium packs lose output in deep cold, so keep it inside the cabin rather than a freezing trunk in winter.

The jump starter, heavy-duty jumper clamps, a USB-C cable and a carry case. Check the listing for the exact accessory set before buying.

It carries an IP64 rating, meaning protection against splashes and dust. It is not submersible, so do not leave it in standing water.

Where is the WOLFBOX MegaVolt24 4000A Jump Starter cheapest?

At Best Buy, for $109.99, as of our latest check.

What do buyers say about the WOLFBOX MegaVolt24 4000A Jump Starter?

Rated 4.8 out of 5 from 247 ratings.

Where can I buy the WOLFBOX MegaVolt24 4000A Jump Starter?

6 stores we checked sell it, including Best Buy, Lowe's, wolfbox.com, eBay, Walmart.

WOLFBOX MegaVolt24 4000A Jump Starter Price History: Lowest $109.99

What reviewers say

4.8 / 5247 ratings

Owners rate it 4.8 out of 5 across 247 ratings, and the recurring theme is that it starts what smaller packs cannot. The display and fast USB-C charging come up often as reasons they keep it in the vehicle.

What people mention

Starting powerPraisedOwners say it fires up trucks and diesel engines that smaller jump packs failed on.
DisplayPraisedThe HD screen showing charge level and status is called out as genuinely useful.
USB-C chargingPraisedThe 65W USB-C port recharges the pack fast and can top up a laptop.
Size and weightMixedBuyers accept the bulk for the capacity but note it is not a pocket-sized pack.
BuildPraisedOwners describe it as sturdy and well made for vehicle storage.

From Lowe's

4000A peak current and 88.8Wh battery for emergency starting of 12V vehicles
Supports gasoline and diesel engines up to 10L
Built-in HD LCD display shows battery level, charging status and operating info
65W USB-C input/output port recharges the unit and powers phones, tablets and laptops
QC3.0 USB-A output port for charging mobile devices and accessories
One-touch boost function helps start vehicles in low-voltage conditions

Guarantee: 3-Year Lowe's Protection Plan available
Returns: FREE Returns — return it in store or ship it back for free; eligibility rules apply
Shipping: FREE Standard Shipping

About the WOLFBOX MegaVolt24 4000A Jump Starter

The WOLFBOX MegaVolt24 is a portable 12V car jump starter with a 4000A peak current and a 24,000mAh (88.8Wh) battery. It starts gasoline and diesel engines up to 10L, so it can be used on cars, trucks and SUVs. A one-touch boost function helps start vehicles with low battery voltage. It operates in temperatures from -4°F to 140°F.

A built-in HD display shows battery level, charging status and operating information. The unit has a 65W USB-C port for input and output, so it can recharge itself and power phones, tablets and laptops. A full recharge takes about 1.3 hours. A QC3.0 USB-A port charges mobile devices and accessories.

The unit has an IP64 waterproof rating and 10 protections, including spark-proof technology. It also includes a multi-mode LED flashlight and comes in a Rose Gold finish. It is covered by a 2-year warranty.

Peak current: 4000A
Battery: 24,000mAh / 88.8Wh
Voltage: 12V
Engine support: Gasoline and diesel, up to 10L
Ports: 65W USB-C input/output, QC3.0 USB-A output
Recharge time: About 1.3 hours
Operating temp: -4°F to 140°F
Water rating: IP64
Display: Digital HD display
Warranty: 2 years