A strong lithium jump starter delivers enough starting power for your engine, useful safety protections, and a portable design suited to your vehicle and emergency kit. This roundup compares 10 options, from the 1000A NOCO Boost GB40 to the 6000A OXILAM Y2, with listed engine capacities ranging from 6.0L gas to 12L diesel. Check the product’s stated engine limit against your vehicle rather than choosing by peak amps alone: listings also differ in safeguards, charging ports, power-bank features, and included accessories.
A compact unit may suit a passenger car, while a larger-engine vehicle may call for a model with a higher stated capacity. The rankings prioritize fit for jump-starting 12V vehicles, then engine coverage, useful features, and supplied components.
The NOCO Boost GB70 is the Best Lithium Jump Start Battery overall in this selection because it combines 2000A peak power with stated support for engines up to 8.0L gas and 6.0L diesel. Its spark-proof and reverse-polarity protections address connection errors, and its power bank can charge devices. The listing also claims up to 40 starts per charge and includes heavy-duty clamps, a storage bag, and a USB-C cable, making it a broadly capable choice for drivers who want more than a basic booster.
Our Top Picks
Best OverallIts 2000A output is rated for 8.0L gas and 6.0L diesel engines, with spark-proof and reverse-polarity protection and up to 40 starts per charge.
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Heavy-Duty EnginesThe 4650A unit is rated for 10.0L gas and 8.0L diesel engines, and its 24,000mAh capacity and USB-C PD 100W charging add versatility.
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Large-Engine CoverageIts 4000A output is listed for gasoline and diesel engines up to 10.0L, and the kit includes intelligent cables and an EVA storage case.
View on Amazon- Highest Peak Amps OXILAM Y2
- Wireless Charging Schumacher SL1674
Compare the Jump Starters at a Glance
| # | Product | Dimensions | Weight | Battery Capacity | Voltage | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. NOCO Boost GB70Best Overall | 7.4"D x 3.7"W x 12.6"H | 5 lb | 5000 milliamp hours | 12 V | View on Amazon |
| 2 | 2. Antigravity AG-XP-20-HDHeavy-Duty Engines | 1.9"D x 4"W x 9.4"H | 2.1 lb | 24000 milliamp hours | 12 V | View on Amazon |
| 3 | 3. GOOLOO GP4000Large-Engine Coverage | 3.92"D x 8.97"W x 1.49"H | 3.9 lb | 24000 milliamp hours | 12 V | View on Amazon |
| 4 | 4. OXILAM Y2Highest Peak Amps | 8.7"D x 4.7"W x 3.5"H | — | 6000 amp hours | 12 V | View on Amazon |
| 5 | 5. Schumacher SL1674Wireless Charging | 7.08"D x 3.58"W x 1.69"H | 1.7 lb | 10000 milliamp hours | 12 V | View on Amazon |
| 6 | 6. NOCO Boost GB40Compact everyday vehicle backup | 4.61"D x 8.19"W x 4.21"H | 2.4 lb | 2150 milliamp hours | 12 V | View on Amazon |
| 7 | 7. Antigravity XP-10Slim daily-driver jump pack | 9.6"D x 4"W x 1.4"H | 1.7 lb | 16000 milliamp hours | 12 V | View on Amazon |
| 8 | 8. AstroAI S8Low-voltage battery boost | 4.5"D x 7.9"W x 3.7"H | 430 g | 8000 milliamp hours | 12 V DC | View on Amazon |
| 9 | 9. Schumacher SL1648Override-mode battery recovery | 1.75"D x 8.13"W x 3.75"H | 2.7 lb | 8000 milliamp hours | 12 V | View on Amazon |
| 10 | 10. WOLFBOX MegaVolt24Passenger-car jump-start backup | 1.5"D x 3.86"W x 9.33"H | 3 lb | 6000 milliamp hours | 12 V | View on Amazon |
Detailed Reviews: Best Lithium Jump Start Battery

#1 · Best Overall
1. NOCO Boost GB70
- Dimensions: 7.4"D x 3.7"W x 12.6"H
- Weight: 5 lb
- Battery Capacity: 5000 milliamp hours
- Voltage: 12 V
Best for: Larger-engine vehicle coverage.
Why it ranks #1: Its 2000A output is rated for 8.0L gas and 6.0L diesel engines, with spark-proof and reverse-polarity protection and up to 40 starts per charge.
The NOCO Boost GB70 supplies 2,000 amps of peak lithium power and supports engines up to 8.0L gas and 6.0L diesel. That higher engine ceiling, paired with up to 40 starts per charge, suits drivers who want a jump starter for larger vehicles and repeated emergency use.
Spark-proof and reverse-polarity protection help reduce connection errors when attaching the clamps to a 12-volt vehicle. The integrated power bank can also provide emergency power to smartphones and tablets, making the unit useful beyond jump-starting. It weighs five pounds and measures 7.4 by 3.7 by 12.6 inches, so storage takes more room than a small pocket-sized accessory; its listed recharge time is six hours.
- 2,000A peak power
- Supports engines up to 8.0L gas and 6.0L diesel
- Up to 40 starts per charge
- Spark-proof and reverse-polarity protection
- The listed recharge time is six hours.
Skip it if you want a shorter listed recharge time; the NOCO Boost GB40 recharges in three hours and supports engines up to 6.0L gas and 3.0L diesel.
The GB70 fits drivers of larger gas or diesel vehicles who value repeated starts and device backup from one unit. Allow room for its 12.6-inch length and plan around its six-hour stated recharge time.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 5000 milliamp_hours |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 1-Year Limited Warranty, GB70 Portable Car Battery Jump Starter Pack, Heavy-Duty Booster Clamps, Microfiber Storage Bag, USB-C Charging Cable, User Guide for Jump Starter, XGC Cable, XGC Male and Female Connectors |
| Dimensions | 7.4"D x 3.7"W x 12.6"H |
| Item Weight | 5 pounds |
| Manufacturer | NOCO |
| Part Number | GB70 |
| Manufacturer Warranty Description | 1-Year Limited Warranty |
| Model Number | GB70 |
| Voltage | 12 volts |
Listed on Amazon as: NOCO Boost GB70 2000A UltraSafe Jump Starter, 12V Lithium Battery Booster
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#2 · Heavy-Duty Engines
2. Antigravity AG-XP-20-HD
- Dimensions: 1.9"D x 4"W x 9.4"H
- Weight: 2.1 lb
- Battery Capacity: 24000 milliamp hours
- Voltage: 12 V
Best for: Heavy-duty gas and diesel coverage.
Why it ranks #2: The 4650A unit is rated for 10.0L gas and 8.0L diesel engines, and its 24,000mAh capacity and USB-C PD 100W charging add versatility.
The Antigravity AG-XP-20-HD combines 4,650 amps of peak power with support for gas engines up to 10.0L and diesel engines up to 8.0L. Its 24,000mAh capacity and USB-C PD 100W fast charging add substantial device-power and recharge capability to a heavy-duty 12-volt jump starter.
The stated engine coverage suits larger trucks and SUVs, while listed compatibility also includes motorcycles, ATVs, RVs, boats, tractors, and other vehicles. USB-C PD 100W fast charging supports rapid recharging when paired with a compatible charger; the product also lists up to 150W output for larger devices and tools. At 2.1 pounds and 9.4 inches long, it remains portable, and the included carrying case and heavy-duty cables keep key gear together.
- 4,650A peak output
- Supports engines up to 10.0L gas and 8.0L diesel
- 24,000mAh capacity
- USB-C PD 100W fast charging and up to 150W output
- 100W fast charging requires a compatible USB-C PD charger.
Skip it if you need a smaller engine limit and a 1.7-pound pack; the Antigravity XP-10 supports engines up to 7.3L and weighs less.
The AG-XP-20-HD suits drivers of larger gas or diesel vehicles who also want high-capacity device power. Its fast-recharge feature depends on a compatible USB-C PD charger, an important part of the setup.
Full product details
| Brand | Antigravity Batteries |
|---|---|
| Battery Capacity | 24000 milliamp_hours |
| Compatible with Vehicle Type | ATV, Bus, Lawn Mower, Motorcycle, Passenger Car, RV, Tractor, Truck, Watercraft |
| Included Components | Carrying case, Heavy-duty jumper cables, Jump starter unit, USB-C charging cable |
| Dimensions | 1.9"D x 4"W x 9.4"H |
| Item Weight | 2.1 pounds |
| Manufacturer | Antigravity Batteries |
| Part Number | AG-XP-20-HD |
| Manufacturer Warranty Description | 2 Year Warranty |
| Model Number | AG-XP-20-HD |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |
Listed on Amazon as: Antigravity Batteries: 4650A Jump Starter – 12V Heavy Duty Lithium Battery Booster Pack, Portable Jump Box, for up to 10.0L Gas & 8.0L Diesel Engines
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#3 · Large-Engine Coverage
3. GOOLOO GP4000
- Dimensions: 3.92"D x 8.97"W x 1.49"H
- Weight: 3.9 lb
- Battery Capacity: 24000 milliamp hours
- Voltage: 12 V
Best for: Large-engine force-boost starting.
Why it ranks #3: Its 4000A output is listed for gasoline and diesel engines up to 10.0L, and the kit includes intelligent cables and an EVA storage case.
The GOOLOO GP4000 pairs 4,000 amps of output with a BOOST button that can force a restart when battery voltage is extremely low. Its stated support for gasoline and diesel engines up to 10.0L makes it a broad-coverage option for drivers with larger vehicles.
The BOOST function addresses extremely low battery voltage, while the intelligent jumper cable is included for making the jump-start connection. Beyond starting, the 24,000mAh capacity and supplied cigarette-lighter socket adapter add power options for compatible equipment; a USB-to-Type-C cable is also included. At 3.9 pounds and 1.49 inches thick, it has a relatively flat profile, but the nearly nine-inch length and included EVA case need storage room.
- 4,000A jump-start output
- BOOST button for extremely low battery voltage
- Supports gasoline and diesel engines up to 10.0L
- 24,000mAh capacity and cigarette-lighter socket adapter
- The unit weighs 3.9 pounds.
Skip it if you prioritize a lighter jump starter for engines up to 7.3L; the Antigravity XP-10 weighs 1.7 pounds and lists that engine limit.
The GP4000 suits drivers who need the listed 10.0L engine coverage and a force-boost option for very low voltage. Consider its 3.9-pound weight and storage footprint when packing an emergency kit.
Full product details
| Brand | GOOLOO |
|---|---|
| Battery Capacity | 24000 milliamp_hours |
| Compatible with Vehicle Type | ATV, Lawn Mower, Motorcycle, Passenger Car, RV, Snowmobile, Truck, UTV |
| Included Components | GOOLOO Heavy-Duty Car Jump Starter GP4000, Intelligent Jumper Cable, USB to Type-C Cable,Cigarette Lighter Socket Adapter, EVA Storage Case |
| Dimensions | 3.92"D x 8.97"W x 1.49"H |
| Item Weight | 3.9 pounds |
| Manufacturer | GOOLOO |
| Part Number | GP4000 |
| Manufacturer Warranty Description | 18-Month warranty |
| Model Number | GP4000 |
| Voltage | 12 volts |
Listed on Amazon as: GOOLOO GP4000 Jump Starter – 4000A 12V Car Battery Jumper Starter Portable
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#4 · Highest Peak Amps
4. OXILAM Y2
- Dimensions: 8.7"D x 4.7"W x 3.5"H
- Battery Capacity: 6000 amp hours
- Voltage: 12 V
Best for: High-output large-engine backup.
Why it ranks #4: The 6000A claim and stated coverage up to 12L diesel suit demanding applications; its listing also claims up to 60 starts per charge.
OXILAM’s Y2 lists 6,000 amps of peak current and support for 12L diesel engines, making its large stated engine range the main draw for drivers of heavy-duty vehicles. It also claims up to 60 jump-starts per full charge and includes an LED display, light, and USB and Type-C ports.
The listed compatibility spans 12-volt cars, motorcycles, pickups, RVs, tractors, trucks, vans, ATVs, snowmobiles, and yachts, giving the Y2 broad vehicle applications. Its LED display can make battery information easier to check, while the LED light adds an illumination feature for low-light situations. USB and Type-C ports let the unit serve as a power bank as well as a jump starter. The product dimensions are 8.7 by 4.7 by 3.5 inches.
- 6,000A peak current
- Listed support for all gas engines and diesel engines up to 12L
- Up to 60 jump-starts per full charge
- LED display, light, USB, and Type-C ports
- The listed dimensions are 8.7 by 4.7 by 3.5 inches, requiring storage space.
Skip it if you want a smaller stated engine ceiling and a lighter compact option; the Antigravity XP-10 weighs 1.7 pounds and supports engines up to 7.3L.
The Y2 is a fit for drivers prioritizing high stated peak current, large diesel-engine coverage, and a long claimed start count. Check that its listed 8.7-inch length suits your vehicle’s storage space.
Full product details
| Brand | OXILAM |
|---|---|
| Battery Capacity | 6000 amp_hours |
| Compatible with Vehicle Type | All of the above |
| Dimensions | 8.7"D x 4.7"W x 3.5"H |
| Manufacturer | DONGGUAN CARPOWER NEW ENERGY CO.,LTD |
| Part Number | OXILAM-DY-Y2-CA |
| Manufacturer Warranty Description | 48 months warranty |
| Model Number | Y2 |
| Voltage | 12 volts |
Listed on Amazon as: OXILAM Jump Starter 6000A for All Gas/12L Diesel, Car Battery Jumper Starter Portable, 12V Lithium Jump Box with Jumper Cables, LED Display, LED Light, Power Bank with USB, Type C Port
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#5 · Wireless Charging
5. Schumacher SL1674
- Dimensions: 7.08"D x 3.58"W x 1.69"H
- Weight: 1.7 lb
- Battery Capacity: 10000 milliamp hours
- Voltage: 12 V
Best for: Glove-box power and charging.
Why it ranks #5: Its 1500A output is rated for 8.0L gas and 4.5L diesel engines, with a 10W wireless charging pad, USB fast charger, and LED light.
The Schumacher SL1674 combines 1,500 amps of starting power with a 10W wireless charging pad, giving drivers a compact way to jump-start a vehicle and charge compatible devices. It supports engines up to 8.0L gas and 4.5L diesel, and its listed dimensions are slim enough for glove-box storage.
The four-in-one setup combines a jump starter, wireless charging pad, USB fast charger, and LED light, reducing the number of separate emergency accessories to carry. Its 1.7-pound weight and 1.69-inch thickness support storage in a glove box, while the smart jumper cable assembly provides the connection for starting. The 10,000mAh battery capacity and USB ports add device-power options, though wireless charging depends on using a compatible device.
- 1,500A starting power for engines up to 8.0L gas and 4.5L diesel
- 10W wireless charging pad
- USB fast charger and LED light
- 1.7-pound, 1.69-inch-thick form
- Wireless charging is limited to the listed 10W pad.
Skip it if you need a stated diesel limit above 4.5L; the Antigravity AG-XP-20-HD supports diesel engines up to 8.0L.
The SL1674 suits drivers who want glove-box storage and several charging and lighting functions alongside jump-starting. Its listed engine ceiling and 10W wireless pad are the key fit considerations.
Full product details
| Brand | Schumacher Electric |
|---|---|
| Battery Capacity | 10000 milliamp_hours |
| Compatible with Vehicle Type | Lawn Mower, ATV, Jet Ski, Snowmobile, Motorcycle, Car, SUV, Tractor, Boat, Truck, RV |
| Included Components | Includes (1) SL1674 Lithium Jump Starter and Portable Power Pack, (1) smart jumper cable assembly, (1) USB-A to USB-C charging cable, (1) user manual |
| Dimensions | 7.08"D x 3.58"W x 1.69"H |
| Item Weight | 1.7 pounds |
| Manufacturer | Schumacher Electric |
| Part Number | SL1674 |
| Manufacturer Warranty Description | 1 year |
| Model Number | SL1674 |
| Voltage | 12 volts |
| Additional Information | Important information Safety Information For use as directed only. Directions Please refer to the product label for instructions for use |
Listed on Amazon as: Schumacher Electric Portable Car Battery Jump Starter & Power Bank – SL1674
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#6
6. NOCO Boost GB40
- Dimensions: 4.61"D x 8.19"W x 4.21"H
- Weight: 2.4 lb
- Battery Capacity: 2150 milliamp hours
- Voltage: 12 V
Best for: Compact everyday vehicle backup.
Why it ranks #6: This 1000A model is rated for 6.0L gas and 3.0L diesel engines, claims up to 20 starts per charge, and includes spark-proof protection.
The NOCO Boost GB40 pairs 1,000 amps of peak power with spark-proof and reverse-polarity protection, helping drivers jump-start a dead 12-volt battery with safer connections. It supports engines up to 6.0L gas and 3.0L diesel, with up to 20 starts per charge, making it a practical compact backup for varied vehicles.
At 2.4 pounds and 4.61 by 8.19 by 4.21 inches, the GB40 is relatively easy to keep with a car’s emergency gear. Its integrated power bank can supply emergency power to phones and tablets, while the supplied USB-C cable supports recharging; the listed recharge time is three hours. Vehicle coverage includes cars, trucks, motorcycles, ATVs, RVs, tractors, UTVs, vans, and watercraft, so one unit can serve more than a passenger car.
- 1,000A peak output supports engines up to 6.0L gas and 3.0L diesel
- Up to 20 starts per charge
- Spark-proof and reverse-polarity protection
- Integrated power bank for phones and tablets
- Its engine-size coverage stops at 6.0L gas and 3.0L diesel.
Skip it if you need support beyond 6.0L gas or 3.0L diesel; the NOCO Boost GB70 covers engines up to 8.0L gas and 6.0L diesel.
Choose the GB40 for routine emergency use in cars, motorcycles, ATVs, or other listed 12-volt vehicles, especially when a power bank matters. Its stated engine limits make it a less fitting choice for larger engines.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 2150 milliamp_hours |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 1-Year Limited Warranty, GB40 Portable Car Battery Jump Starter Pack, Heavy-Duty Booster Clamps, Microfiber Storage Bag, USB-C Charging Cable, User Guide for Jump Starter |
| Dimensions | 4.61"D x 8.19"W x 4.21"H |
| Item Weight | 2.4 pounds |
| Manufacturer | NOCO |
| Part Number | GB40 |
| Manufacturer Warranty Description | 1-Year Limited Warranty |
| Model Number | GB40 |
| Voltage | 12 volts |
Listed on Amazon as: NOCO Boost GB40 12V 1000A UltraSafe Portable Lithium Jump Starter
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#7
7. Antigravity XP-10
- Dimensions: 9.6"D x 4"W x 1.4"H
- Weight: 1.7 lb
- Battery Capacity: 16000 milliamp hours
- Voltage: 12 V
Best for: Slim daily-driver jump pack.
Why it ranks #7: At 1.7 pounds and 1.4 inches thick, it is easy to stow while offering stated support for gas and diesel engines up to 7.3L.
The Antigravity XP-10 delivers support for gas and diesel engines up to 7.3L in a 1.4-inch-thick unit weighing 1.7 pounds. That slim, light form gives daily drivers, work vehicles, and outdoor users a portable jump-start option without the bulk of a larger pack.
Its 16,000mAh capacity and listed 12-volt operation support vehicle starting across cars, trucks, ATVs, motorcycles, lawn mowers, scooters, and snowmobiles. The supplied heavy-duty jumper clamp cables provide the starting connection, and the USB-A to USB-C cable supports charging the unit. A zippered carrying case helps keep the starter and its accessories together, while the 9.6-inch length remains a storage consideration despite its slim profile.
- Supports gas and diesel engines up to 7.3L
- 1.7-pound weight and 1.4-inch thickness
- 16,000mAh battery capacity
- Includes heavy-duty clamp cables and zippered case
- Its stated engine limit is 7.3L.
Skip it if you need a stated limit above 7.3L; the Antigravity AG-XP-20-HD supports gas engines up to 10.0L and diesel engines up to 8.0L.
The XP-10 fits drivers who want a slim, light starter for listed vehicles and engines up to 7.3L. Its compact profile eases storage, but larger engines exceed its stated coverage.
Full product details
| Brand | Antigravity Batteries |
|---|---|
| Battery Capacity | 16000 milliamp_hours |
| Compatible with Vehicle Type | ATV, Lawn Mower, Motorcycle, Passenger Car, Scooter, Snowmobile, Truck, UTV |
| Included Components | Heavy-Duty Jumper Clamp Cables, Jump Starter Unit, USB-A to USB-C Charging Cable, User Manual, Zippered Carrying Case |
| Dimensions | 9.6"D x 4"W x 1.4"H |
| Item Weight | 1.7 pounds |
| Manufacturer | Antigravity Batteries |
| Part Number | XP-10 |
| Model Number | XP-10 |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer – www.P65Warnings.ca.gov |
Listed on Amazon as: Antigravity Batteries 600A Lithium Jump Starter – 12V Portable Battery Booster for Gas & Diesel Vehicles up to 7.3L, Compact Jump Box with USB-C Fast Charging
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#8
8. AstroAI S8
- Dimensions: 4.5"D x 7.9"W x 3.7"H
- Weight: 430 g
- Battery Capacity: 8000 milliamp hours
- Voltage: 12 V DC
Best for: Low-voltage battery boost.
Why it ranks #8: Its 3000A peak output is listed for 6L gas and 3L diesel engines, with auto-sense technology and a two-year manufacturer warranty.
AstroAI’s S8 combines 3,000 amps of peak output with Auto-Sense Technology that signals when a battery voltage is under 9V and boost is needed. It supports 6.0L gas and 3.0L diesel engines, giving drivers a clear low-voltage cue for an emergency start.
The 45C high-rate battery is paired with the stated 3,000A output to start compatible engines, including cars, pickups, SUVs, and lawnmowers. Auto-Sense Technology flashes a green light when voltage is below 9V and boost is needed, helping users identify when to use the boost function. Its listed weight is 430 grams, which is helpful when keeping an emergency unit in a vehicle; the supplied components list includes a cable.
- 3,000A peak output
- 45C high-rate battery
- Auto-Sense signal for voltage under 9V
- Supports engines up to 6.0L gas and 3.0L diesel
- Its stated engine limit is 6.0L gas and 3.0L diesel.
Skip it if you need support above 6.0L gas or 3.0L diesel; the GOOLOO GP4000 lists gasoline and diesel engines up to 10.0L.
Choose the S8 for a 12-volt vehicle emergency kit where its low-voltage signal and 430-gram weight are useful. Its stated engine limits make it a better fit for moderate-size engines than larger ones.
Full product details
| Brand | AstroAI |
|---|---|
| Battery Capacity | 8000 milliamp_hours |
| Compatible with Vehicle Type | ATV |
| Included Components | Cable |
| Dimensions | 4.5"D x 7.9"W x 3.7"H |
| Item Weight | 430 g |
| Manufacturer | AstroAI |
| Part Number | S8 |
| Manufacturer Warranty Description | 2 Year Manufacturer |
| Model Number | S8 |
| Voltage | 12 volts_of_direct_current |
Listed on Amazon as: AstroAI S8 Car Battery Jump Starter 3000A – Portable 12V Lithium Jump Box
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#9
9. Schumacher SL1648
- Dimensions: 1.75"D x 8.13"W x 3.75"H
- Weight: 2.7 lb
- Battery Capacity: 8000 milliamp hours
- Voltage: 12 V
Best for: Override-mode battery recovery.
Why it ranks #9: This 1250A starter covers 6.0L gas and 3.0L diesel engines and adds reverse-polarity, short-circuit, and temperature protection.
The Schumacher SL1648 combines 1,250-amp jump-starting with a manual override mode for deeply discharged, low-voltage batteries. It supports engines up to 6.0L gas and 3.0L diesel, while its protection features and USB-A charging add useful safeguards and device power for roadside or driveway emergencies.
The manual override addresses a specific situation: batteries too deeply discharged for automatic starting. Reverse-polarity, short-circuit, and temperature protection add safeguards during use, while the 2.4A USB-A port can charge USB devices. Its 2.7-pound weight and slim 1.75-inch depth make it easier to stow than a bulky jump box, and the included 12V car charger provides another listed charging option.
- Manual override for deeply discharged, low-voltage batteries
- 1,250A output for engines up to 6.0L gas and 3.0L diesel
- Reverse-polarity, short-circuit, and temperature protection
- 2.4A USB-A device charging
- Its stated engine limit is 6.0L gas and 3.0L diesel.
Skip it if you need a stated limit above 6.0L gas or 3.0L diesel; the Schumacher SL1674 supports engines up to 8.0L gas and 4.5L diesel.
Consider the SL1648 if manual recovery for a deeply discharged battery and built-in USB-A charging match your roadside needs. Its listed engine coverage is aimed at moderate-size gas and diesel vehicles, not larger engines.
Full product details
| Brand | Schumacher Electric |
|---|---|
| Battery Capacity | 8000 milliamp_hours |
| Compatible with Vehicle Type | Lawn Mower, ATV, Jet Ski, Snowmobile, Motorcycle, Car, SUV, Tractor, Boat, Truck, RV |
| Included Components | Includes (1) SL1648 Lithium Portable Power Pack and Jump Starter, (1) 12V DC car charger, (1) USB charging cable, (1) storage bag, (1) user manual |
| Dimensions | 1.75"D x 8.13"W x 3.75"H |
| Item Weight | 2.7 pounds |
| Manufacturer | Schumacher Electric |
| Part Number | SL1648 |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | SL1648 |
| Voltage | 12 volts |
| Additional Information | Important Information Proposition 65 Warning for California Consumers WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov |

#10
10. WOLFBOX MegaVolt24
- Dimensions: 1.5"D x 3.86"W x 9.33"H
- Weight: 3 lb
- Battery Capacity: 6000 milliamp hours
- Voltage: 12 V
Best for: Passenger-car jump-start backup.
Why it ranks #10: Its title lists 4000A and 10L gas and diesel coverage, but the supplied features provide little further jump-start detail or included equipment.
The WOLFBOX MegaVolt24 lists 4,000 amps of jump-start power and an 88.8Wh battery, a combination aimed at drivers seeking a substantial portable booster for passenger-car emergencies. Its listed dimensions are 9.33 by 3.86 by 1.5 inches, providing a clear measure for planning where to keep it.
The product title identifies the MegaVolt24 as a portable jumper starter with booster, while the specifications list 12-volt operation and passenger-car compatibility. Its three-pound weight and slim 1.5-inch depth can help with storage planning, although the 9.33-inch length means it still needs a suitable compartment. The supplied information does not list a device-charging port or protection features, so buyers should evaluate it primarily on the stated jump-start specifications and passenger-car fit.
- 4,000A output stated in the product title
- 88.8Wh battery stated in the product title
- 12V operation
- Slim 1.5-inch listed depth
- Listed vehicle compatibility is limited to passenger cars.
Skip it if you need listed compatibility for trucks, boats, or motorcycles; the GOOLOO GP4000 names those vehicle types among its supported applications.
The MegaVolt24 fits a passenger-car owner who wants a portable 12-volt booster and has space for its 9.33-inch length. Its supplied compatibility information is narrower than models listing multiple vehicle types.
Full product details
| Brand | WOLFBOX |
|---|---|
| Battery Capacity | 6000 milliamp_hours |
| Compatible with Vehicle Type | Passenger Car |
| Included Components | MegaVolt24 Jump Starter |
| Dimensions | 1.5"D x 3.86"W x 9.33"H |
| Item Weight | 3 pounds |
| Manufacturer | WOLFBOX |
| Part Number | 6570140 |
| Manufacturer Warranty Description | 2 Year |
| Model Number | MegaVolt24 |
| Voltage | 12 volts |
Listed on Amazon as: WOLFBOX 4000A &88.8Wh Battery Jumper Starter Portable(10L/10L),with Booster
View on AmazonWhy a jump starter may fail to start your vehicle
A jump starter can fail to start a vehicle when its engine is beyond the model’s stated capacity or its battery is too deeply discharged for the unit’s normal safety sequence. The listings show why checking both matters: the NOCO Boost GB40 is rated for up to 6.0L gas and 3.0L diesel, while the NOCO Boost GB70 covers up to 8.0L gas and 6.0L diesel. The GOOLOO GP4000 specifically describes a BOOST button for extremely low battery voltage, and Schumacher SL1648 lists an override mode for deeply discharged low-voltage batteries.
Those features do not remove the need to follow the manual’s connection steps. A higher peak-amp figure alone does not confirm compatibility with every battery condition or vehicle.
Verify the engine limit, read the operating instructions, and use any override only as directed.
Check the full fit, not just the peak-amp number
A stated engine limit and the physical size of the device both affect whether a jump starter is a practical match. Listings use different claims and formats: the OXILAM Y2 states coverage for all gas engines and 12L diesel, while the NOCO Boost GB70 gives separate limits of 8.0L gas and 6.0L diesel. Do not treat those figures as directly interchangeable or assume a broad claim guarantees fit for a particular vehicle; check the vehicle manual and the starter’s current instructions.
The supplied dimensions also vary considerably: the Antigravity XP-10 is 9.6 by 4 by 1.4 inches, while the NOCO Boost GB70 is listed as 7.4 by 3.7 by 12.6 inches. Consider where you will store the unit and whether its cables and connectors can reach the battery terminals before choosing.
How to Choose a Lithium Jump Starter
Match the engine rating
Look for a stated gas and diesel engine limit that meets your vehicle’s requirements. Across these products, listed coverage ranges from 6.0L gas and 3.0L diesel for the NOCO Boost GB40 and Schumacher SL1648 to 10.0L gas and 8.0L diesel for the Antigravity AG-XP-20-HD. The OXILAM Y2 claims coverage up to 12L diesel, while the GOOLOO GP4000 lists engines up to 10.0L without a separate gas-versus-diesel limit.
For smaller cars, the lower end may be sufficient; owners of larger trucks or diesel vehicles should prioritize a model with a suitable stated rating. Confirm compatibility with your vehicle rather than relying on peak amps alone.
Compare starting power and safeguards
Check both peak amps and the protections or recovery features that matter for your situation. Listed output ranges from 1000A on the NOCO Boost GB40 to 6000A on the OXILAM Y2; the NOCO Boost GB70 offers 2000A and explicitly lists spark-proof and reverse-polarity protection. The Schumacher SL1648 adds short-circuit and temperature protection, while the GOOLOO GP4000 describes a BOOST button for extremely low battery voltage.
Higher peak current may appeal to drivers with larger engines, but it does not replace a matching engine rating or safe connection procedures. Choose clearly described safeguards if connection mistakes are a concern, and check the manual for how any low-voltage or override mode works.
Consider size, capacity, and extra functions
Choose a unit that is practical to store and offers the charging features you will actually use. Listed weights run from 1.7 pounds for the Schumacher SL1674 and Antigravity XP-10 to 5 pounds for the NOCO Boost GB70; the supplied battery-capacity figures range from 2150mAh for the NOCO Boost GB40 to 24,000mAh for the GOOLOO GP4000 and Antigravity AG-XP-20-HD. These figures are not a direct guarantee of jump starts or runtime, so consider each product’s stated starting claims too.
A glove-box-focused buyer may prefer a lighter or thinner design, while someone who wants phone charging can compare USB ports, the Schumacher SL1674’s wireless charging pad, and the power-bank features listed for both NOCO models.
Which lithium jump starter should I choose?
For a broad mix of cars, trucks, and device-charging needs, choose the NOCO Boost GB70: it combines 2000A, an 8.0L gas rating, a 6.0L diesel rating, and listed safety protections. For larger stated engine limits, the Antigravity AG-XP-20-HD covers up to 10.0L gas and 8.0L diesel; the GOOLOO GP4000 is another option with a 10.0L engine claim. The OXILAM Y2 lists 6000A and up to 12L diesel, while the NOCO Boost GB40 suits buyers whose needs fit its 6.0L gas and 3.0L diesel limits.
For wireless phone charging, consider the Schumacher SL1674. If compact storage is a priority, compare the slim Antigravity XP-10 with the lighter Schumacher SL1674, while checking their different engine ratings.
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Frequently Asked Questions
How often should I recharge a lithium jump starter while it is stored?
Follow the product’s manual for its recommended storage checks and recharge schedule, since guidance can vary by model. Check the charge level periodically and recharge as directed rather than waiting until you need a jump. After using the starter, consult its instructions about restoring its charge before storing it again.
What should I do if the jump starter’s safety system will not activate?
Stop and check the manual before trying again. Confirm that the clamps are connected as instructed and that the battery terminals are accessible and clean. Do not bypass a safety feature or force a connection.
If the protection still prevents operation, contact the manufacturer or a qualified service professional for guidance.
Can a portable jump starter remain in a vehicle through hot or cold weather?
Check the specific starter’s manual for its permitted storage-temperature range before leaving it in a vehicle. Cabin temperatures can differ from outdoor conditions, so avoid assuming a device is suitable for prolonged heat or cold. If the manual does not address vehicle storage, contact the manufacturer for advice.
How should I compare engine ratings between jump starters?
Compare the stated engine limits for both gasoline and diesel separately, then check that they meet or exceed your vehicle’s engine size. For example, the GB70 is listed for up to 8.0L gas and 6.0L diesel, while the Antigravity AG-XP-20-HD is listed for up to 10.0L gas and 8.0L diesel.
Which features matter if I also want to charge devices?
Look for a product listing that explicitly describes device charging and check the ports provided. The GB70 is described as having a power bank, while the Schumacher SL1674 is identified in the editorial verdict for wireless phone charging. Choose based on the charging feature you need, not the jump-start rating alone.
Final Words
For a broadly capable choice, the NOCO Boost GB70 stands out here, with stated support for engines up to 8.0L gas and 6.0L diesel, safety protections, and device charging. If your vehicle needs a higher listed engine limit, compare the Antigravity AG-XP-20-HD or GOOLOO GP4000; for compact storage or wireless phone charging, consider the specified alternatives. Check the rating for your engine type and the product instructions before deciding.


