A strong portable car jump starter pairs enough starting capacity for your engine with manageable size and clear connection safeguards; the right choice suits your vehicle and the emergencies you want it to cover. This roundup spans compact lithium units such as the 16-ounce NOCO Boost GB20, higher-output packs rated for larger engines, and combination devices with built-in tire inflators. Engine limits, peak current, claimed starts per charge, and added functions differ considerably, so the largest amp figure is not automatically the best fit.
Safety features and portability matter too, especially if you want a device that is straightforward to keep in a car and use under pressure. Compare the listed specifications and included equipment against your vehicle’s requirements before choosing.
The NOCO Boost GB40 is the best overall choice here for drivers who want a portable 12V jump starter with explicit connection safeguards. It delivers 1000 amps, is rated for engines up to 6.0L gas and 3.0L diesel, and lists spark-proof and reverse-polarity protection. Its integrated power bank adds phone and tablet charging.
For larger engines or a built-in tire inflator, other ranked options offer higher peak-current ratings or extra equipment, but the GB40 makes a balanced, safety-focused pick for many passenger-car owners.
Our Top Picks
Best OverallIts 1000A output is rated for 6.0L gas and 3.0L diesel engines, while spark-proof and reverse-polarity protection add a clearly stated safety advantage.
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Best for 0V BatteriesIts 4000A rating covers engines up to 8.0L gas and 7.0L diesel, and the listed force-start function addresses 0V batteries.
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Best Listed Engine CoverageThe listed 6000A peak current and claimed support for all gas engines and 12L diesel engines suit buyers seeking broad stated engine coverage.
View on AmazonCompare Portable Jump Starters by Key Features
| # | Product | Weight | Voltage | Compatible with Vehicle Type | Buy |
|---|---|---|---|---|---|
| 1 | 1. NOCO Boost GB40Best Overall | 2.4 lb | 12 V | ATV, Motorcycle, Passenger Car, RV, Tractor… | View on Amazon |
| 2 | 2. Povasee A30For larger-engine and low-voltage starts | 1.1 lb | 12 V | All of the above | View on Amazon |
| 3 | 3. S ZEVZO ET03Best for 0V Batteries | 1.4 lb | 12 V | Lawn Mower, Motorcycle, Passenger Car… | View on Amazon |
| 4 | 4. OXILAM Y2Best Listed Engine Coverage | 3.36 oz | 12 V | All of the above | View on Amazon |
| 5 | 5. TREKURE TK10For frequent starts across temperature swings | 0.37 kg | 12 V | ALL | View on Amazon |
| 6 | 6. WOLFBOX MV24AFor jump starts and roadside tire inflation | 5.3 lb | 12 V | ATV, Lawn Mower, Motorcycle, Passenger Car… | View on Amazon |
| 7 | 7. Joltekon VP30For multi-function roadside kits | 1200 g | 12 V | ALL | View on Amazon |
| 8 | 8. Povasee A6For an inflator and jump starter in one | 1.5 lb | 12 V | All of the above | View on Amazon |
| 9 | 9. NOCO Boost GB20For compact gas-engine emergencies | 16 oz | 12 V | ATV, Lawn Mower, Motorcycle, Passenger Car… | View on Amazon |
| 10 | 10. Clore Automotive JNC660For workshop and roadside cable reach | 18 lb | 12 V | ATV, Bus, Lawn Mower, Passenger Car, RV… | View on Amazon |
Detailed Reviews: Best Portable Car Jump Starter

#1 · Best Overall
1. NOCO Boost GB40
- Weight: 2.4 lb
- Voltage: 12 V
- Compatible with Vehicle Type: ATV, Motorcycle, Passenger Car, RV, Tractor…
Best for: For mixed gas and diesel drivers.
Why it ranks #1: Its 1000A output is rated for 6.0L gas and 3.0L diesel engines, while spark-proof and reverse-polarity protection add a clearly stated safety advantage.
The GB40 pairs 1,000 peak amps with support for engines up to 6.0L gas and 3.0L diesel, giving drivers of many everyday vehicles a compact emergency starting option. Its spark-proof and reverse-polarity protections help make clamp connections safer, while an integrated power bank adds phone and tablet charging when roadside help takes time.
A claimed maximum of 20 starts per charge makes it useful for repeated emergencies before recharging, and the stated three-hour recharge time offers a clear upkeep target. The included heavy-duty booster clamps and 12V compatibility suit cars as well as listed vehicles including motorcycles, RVs, and watercraft. At 2.4 pounds, it remains portable, and its power bank provides emergency device charging; the listed engine limits are important when choosing it for larger engines.
- 1,000 peak amps with support for up to 6.0L gas and 3.0L diesel engines
- Up to 20 starts per charge
- Spark-proof and reverse-polarity protection
- Integrated power bank and three-hour recharge
- Its diesel engine limit is 3.0L, below the stated 6.0L gas limit.
Skip it if you need to start a diesel engine larger than 3.0L; the Povasee A30 lists support up to 8.0L diesel.
Choose the NOCO GB40 for a portable 12V kit serving cars and listed recreational vehicles, especially when device charging and connection safeguards matter. Its stated 3.0L diesel ceiling makes engine size a key fit check.
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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#2
2. Povasee A30
- Weight: 1.1 lb
- Voltage: 12 V
- Compatible with Vehicle Type: All of the above
Best for: For larger-engine and low-voltage starts.
Why it ranks #2: This 1.1-pound pack lists 5000A, support for 10L gas or 8L diesel engines, and up to 60 starts per charge.
The Povasee A30 lists 5,000 peak amps and support for engines up to 10L gas or 8L diesel, making its broad engine coverage the central appeal. Its RST button is specified for batteries below 9 volts, a useful provision for drivers facing a deeply discharged battery rather than an ordinary weak start.
The listed capacity of up to about 60 starts per charge can help when a vehicle is used repeatedly between charging sessions. Two USB outputs and a 74Wh power-bank function add device charging, while the LED light supplies another roadside tool. At 1.1 pounds and 1.7 inches deep, the unit is relatively easy to store in a vehicle. It supports 12V vehicles including cars, trucks, motorcycles, boats, and tractors; its RST function is specifically tied to voltage below 9V.
- 5,000 peak amps for up to 10L gas or 8L diesel engines
- RST button for batteries below 9 volts
- About 60 starts per charge
- 74Wh power bank with two USB outputs
- The supplied contents list a USB-to-Type-C cable without an adapter.
Skip it if you want an air compressor bundled with jump-starting; the WOLFBOX MegaVolt24 Air combines a starter and tire inflator.
Choose the A30 if you need substantial listed engine coverage, a low-voltage restart function, and device charging in a 1.1-pound unit. It does not list a tire inflator, so tire emergencies need separate equipment.
Full product details
| Brand | Povasee |
|---|---|
| Battery Capacity | 20000 milliamp_hours |
| Compatible with Vehicle Type | All of the above |
| Included Components | 1*USB to Type c cable(Without Adapter), Pavasee A30 Portable Batery Jump starter, Smart Jumper Clip, Storage Box, User Manual for Jump Starter |
| Dimensions | 1.7"D x 6.61"W x 3.37"H |
| Item Weight | 1.1 pounds |
| Manufacturer | Povasee |
| Part Number | A30 |
| Manufacturer Warranty Description | 2 year manufacturer |
| Model Number | A30 |
| Voltage | 12 volts |

#3 · Best for 0V Batteries
3. S ZEVZO ET03
- Weight: 1.4 lb
- Voltage: 12 V
- Compatible with Vehicle Type: Lawn Mower, Motorcycle, Passenger Car…
Best for: For 0V battery recovery.
Why it ranks #3: Its 4000A rating covers engines up to 8.0L gas and 7.0L diesel, and the listed force-start function addresses 0V batteries.
The S ZEVZO ET03 combines 4,000A peak current with a force-start function for 0V dead batteries, addressing a condition that can challenge ordinary jump-start attempts. It supports listed 12V engines up to 8.0L gas and 7.0L diesel, with a stated maximum of 50 starts per charge.
Its LCD display makes the unit’s information visible during roadside use, and an LED light adds illumination. The 74Wh battery also serves as a power bank with USB ports, extending its usefulness beyond starting. At 1.4 pounds and 1.5 inches deep, it has a relatively slim listed form for vehicle storage. It includes smart jumper clamps and a carrying case; its force-start feature is the relevant differentiator for the specifically stated 0V battery condition.
- Force-start function for 0V dead batteries
- 4,000A peak current for up to 8.0L gas and 7.0L diesel engines
- Up to 50 starts per charge
- LCD display, LED light, and USB power-bank function
- It is rated for up to 50 starts per charge, fewer than the TK10’s claimed 1,000-plus jumps.
Skip it if you prioritize a claimed 1,000-plus jumps; the TREKURE TK10 lists that figure and supports engines up to 8.0L gas.
The ET03 suits drivers who want a force-start function for 0V batteries alongside a display, light, and USB power. Its listed engine limits and 50-start maximum should match the vehicle and expected use.
Full product details
| Brand | S ZEVZO |
|---|---|
| Battery Capacity | 20000 milliamp_hours |
| Compatible with Vehicle Type | Lawn Mower, Motorcycle, Passenger Car, Tractor, Truck, Van |
| Included Components | Portable Carrying Case*1, S ZEVZO Car Jump Starter*1, Smart Jumper Clamps*1, USB Charging Cable*1, User Manual*1 |
| Dimensions | 1.5"D x 3.4"W x 7.5"H |
| Item Weight | 1.4 pounds |
| Manufacturer | Dongguan Chuangyi New Energy Technology Co., Ltd |
| Part Number | ET03 |
| Manufacturer Warranty Description | 2 Year Manufacturer Warranty |
| Model Number | ET03 |
| Voltage | 12 volts |
Listed on Amazon as: S ZEVZO ET03 Car Jump Starter 4000A Jump Starter Battery Pack for Up to 8.0L Gas and 7.0L Diesel Engines, 74Wh Portable 12V Jump Box with USB Ports, LCD Display, Storage Case, and LED Light
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#4 · Best Listed Engine Coverage
4. OXILAM Y2
- Weight: 3.36 oz
- Voltage: 12 V
- Compatible with Vehicle Type: All of the above
Best for: For high-capacity engine coverage.
Why it ranks #4: The listed 6000A peak current and claimed support for all gas engines and 12L diesel engines suit buyers seeking broad stated engine coverage.
OXILAM’s Y2 lists 6,000A peak current and support for all gas engines plus diesel engines up to 12L, giving it broad stated coverage for demanding vehicle starting needs. The manufacturer also claims up to 60 jump starts on one full charge, which can reduce how often it needs topping up between emergencies.
The included LED display gives a visible interface on the jump starter, while its LED light adds illumination for roadside use. A USB power-bank function and Type-C port extend the unit beyond starting, letting it serve as a device-charging source as well. Listed compatible vehicles include motorcycles, pickups, RVs, tractors, trucks, vans, ATVs, snowmobiles, and yachts. Its stated 12L diesel and all-gas coverage is broad, but buyers should still match the engine to those listed limits.
- 6,000A peak current
- All-gas engine support and diesel engines up to 12L
- Up to 60 starts per full charge
- LED display, light, USB power bank, and Type-C port
- The supplied specifications list capacity as 6,000 amp-hours, an unusually stated unit that offers little practical comparison.
Skip it if you need a listed air compressor and tire inflator; the WOLFBOX MegaVolt24 Air combines those functions with jump-starting.
The Y2 suits drivers seeking wide stated engine coverage and a high claimed number of starts, with lighting and device charging included. Its listing does not specify an air compressor, so tire inflation remains a separate task.
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 |
| Item Weight | 3.36 ounces |
| 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
5. TREKURE TK10
- Weight: 0.37 kg
- Voltage: 12 V
- Compatible with Vehicle Type: ALL
Best for: For frequent starts across temperature swings.
Why it ranks #5: Its 4000A output is rated for 8.0L gas and 6.5L diesel engines, with a 16800mAh power bank and a listed two-year warranty.
TREKURE’s TK10 lists 4,000A output for 12V engines up to 8.0L gas and 6.5L diesel, with operation stated from -4°F to 140°F. Those limits and temperature range make its starting coverage the key consideration for drivers who keep a jump pack on hand through changing weather.
The 16,800mAh capacity also serves as a power bank for personal devices, adding a second use between jump-starts. TREKURE claims more than 1,000 jumps, a notably high stated figure, although the listing does not explain the conditions behind it. A USB-C charging cable, heavy-duty jumper cable, dust bag, and instruction manual are included for vehicle storage and setup. Confirm that the 8.0L gas or 6.5L diesel ceiling matches the vehicle.
- 4,000A output for up to 8.0L gas and 6.5L diesel engines
- Listed operating range from -4°F to 140°F
- 16,800mAh power-bank capacity
- USB-C charging cable and heavy-duty jumper cable included
- The listing gives no physical dimensions, making storage-space planning less certain.
Skip it if you need a clearly stated compact size for a tight storage space; the S ZEVZO ET03 lists dimensions of 1.5 by 3.4 by 7.5 inches.
The TK10 fits drivers seeking a 12V jump starter with a stated broad temperature range and a device-charging role. Its engine limits are 8.0L gas and 6.5L diesel, and dimensions are not supplied for storage planning.
Full product details
| Brand | TREKURE |
|---|---|
| Battery Capacity | 16800 milliamp_hours |
| Compatible with Vehicle Type | ALL |
| Included Components | ♚ 2 Year Hassle-Free Warranty ♚ Lifetime Support Service, ♚1× 4000A Car Jump Starter Portable, ♚1× Heavy-Duty Jumper Cable, ♚1× USB-C Charging Cable, ♚1× Useful Dust Bag ♚1× Instruction Manual |
| Item Weight | 0.37 kg |
| Manufacturer | TREKURE |
| Part Number | TK10 |
| Model Number | TK10 |
| Voltage | 12 volts |
Listed on Amazon as: TREKURE Portable Car Battery Jump Starter 4000A 16800mAh Jump Box, Car Battery Jumper Starter Portable Jumper Cables for car(8.0L Gas/6.5L Diesel), Fast Charge, Lights, Compact
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#6
6. WOLFBOX MV24A
- Weight: 5.3 lb
- Voltage: 12 V
- Compatible with Vehicle Type: ATV, Lawn Mower, Motorcycle, Passenger Car…
Best for: For jump starts and roadside tire inflation.
Why it ranks #6: This 5.3-pound combination unit pairs 4000A jump-start output with a 160PSI air compressor and 65W USB-C charging.
The WOLFBOX MegaVolt24 Air combines a 4,000A jump starter with a 160 PSI air compressor, so one unit can address a dead battery and a low tire. It lists support for 12V engines up to 10L gas or diesel and tire inflation for pickup trucks and below, bringing two roadside tasks together.
Its 88.8Wh battery supplies the stated jump-start and compressor functions, while 65W USB-C charging offers a way to recharge the unit quickly. USB-A ports and a 160W DC continuous output expand its power options for compatible devices. The included jumper cable and carrying bag support vehicle storage, though its 5.3-pound weight is more substantial than a simple jump pack. Its stated engine coverage reaches 10L for both gas and diesel.
- 4,000A peak current for up to 10L gas and diesel engines
- Integrated air compressor rated to 160 PSI
- 65W USB-C charging
- USB-A ports and 160W DC continuous output
- At 5.3 pounds, it is heavier than a basic portable jump starter.
Skip it if you want the lightest possible jump pack and do not need inflation; the Povasee A30 weighs 1.1 pounds.
The MegaVolt24 Air suits drivers who want battery starting and tire inflation in one vehicle-stored kit, including owners of pickups and smaller vehicles. Its 5.3-pound weight and specified 10L engine ceiling shape the fit.
Full product details
| Brand | WOLFBOX |
|---|---|
| Battery Capacity | 6000 milliamp_hours |
| Compatible with Vehicle Type | ATV, Lawn Mower, Motorcycle, Passenger Car, Scooter, Snowmobile, UTV |
| Included Components | Battery Clamp & Jumper Cable, C-to-C Fast Charging Cable, EVA Carrying Bag, Jump Starter with Air Comprssor Unit, User Manual |
| Dimensions | 2.16"D x 5.28"W x 9.39"H |
| Item Weight | 5.3 pounds |
| Manufacturer | WOLFBOX |
| Part Number | MegaVolt 24 Air |
| Manufacturer Warranty Description | 2 Year Manufacturer |
| Model Number | megavolt 24 air |
| Voltage | 12 volts |

#7
7. Joltekon VP30
- Weight: 1200 g
- Voltage: 12 V
- Compatible with Vehicle Type: ALL
Best for: For multi-function roadside kits.
Why it ranks #7: It combines a 4500A starter rated for 9L gas and 8L diesel engines with a 150PSI inflator, lights, and a carrying case.
The Joltekon VP30 combines a 4,500A jump starter with a 150 PSI tire inflator, pressure gauge, and several warning-light modes. That eight-function package lets drivers address starting, tire pressure, visibility, and device-power needs with one kit, while its listed engine limits are 9L gas and 8L diesel.
An auto-shutoff tire inflator can stop inflation automatically, and the included extended hose and four air nozzles support different inflation connections. The kit also lists a flashlight, SOS signal, white strobe, and red strobe, giving drivers options for roadside visibility. Its 7,200mAh battery and 12V power-bank function add device charging. A rugged carrying case keeps the supplied jumper cables, quick-charging cables, and accessories together for vehicle storage.
- 4,500A peak current for up to 9L gas and 8L diesel engines
- 150 PSI tire inflator with auto-shutoff
- Pressure gauge, flashlight, SOS, and strobe modes
- Extended air hose, four nozzles, and carrying case
- Its listed diesel engine limit is 8L, lower than the 9L gas limit.
Skip it if you need listed support above 8L diesel; the WOLFBOX MegaVolt24 Air specifies support for engines up to 10L diesel.
Choose the VP30 if you want jump-starting, tire inflation, and multiple warning lights together for roadside use. Its stated 8L diesel and 9L gas limits, plus several included accessories, define its vehicle and storage fit.
Full product details
| Brand | Joltekon |
|---|---|
| Battery Capacity | 7200 milliamp_hours |
| Compatible with Vehicle Type | ALL |
| Included Components | ♚Detachable Extended Air Hose & 4 Air Nozzles, ♚Heavy-Duty Jumper Cables, ♚Instruction Manual & FAQ Card & Rugged Carrying Case, ♚Quick Charging Cables, ♚VP30 Jump Starter with Air Compressor |
| Dimensions | 7.88"D x 1.97"W x 3.78"H |
| Item Weight | 1200 g |
| Manufacturer | Joltekon |
| Part Number | VP30 |
| Manufacturer Warranty Description | 2 Years |
| Model Number | VP30 |
| Voltage | 12 volts |
Listed on Amazon as: Car Battery Jump Starter with Air Compressor 4500A 150PSI, Car Jumper Starter Portable (9L Gas/8L Diesel), Jump Box Car Battery with Auto-Shutoff Tire Inflator, Jumper Cables and Light
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#8
8. Povasee A6
- Weight: 1.5 lb
- Voltage: 12 V
- Compatible with Vehicle Type: All of the above
Best for: For an inflator and jump starter in one.
Why it ranks #8: The 1.5-pound device combines a listed 5000A output with a 150PSI tire inflator and claimed compatibility with engines up to 9L gas or 8L diesel.
The Povasee A6 pairs a 5,000A jump starter with a 150 PSI tire inflator, combining emergency engine starting and tire inflation in a single listed unit. Its title specifies support for engines up to 9L gas and 8L diesel, making those limits central to deciding whether it fits a vehicle.
The title also lists an LCD display and flashlight, providing visible information and illumination for roadside use. Its 22,800mAh battery capacity indicates substantial listed capacity for a portable unit, while its dimensions of 1.9 by 4.2 by 7.7 inches give buyers concrete storage measurements. The product listing includes the jump starter, but does not itemize an air hose or other accessories. Check included contents and the stated 9L gas and 8L diesel limits before relying on the inflator setup.
- 5,000A peak current
- 150 PSI tire inflator
- Listed support for up to 9L gas and 8L diesel engines
- LCD display, flashlight, and 22,800mAh capacity
- The listed included components identify only the jump starter, not an air hose or other accessories.
Skip it if you need explicitly listed jumper cables and a carrying bag; the Joltekon VP30 includes heavy-duty cables and a rugged case.
The A6 is for drivers seeking jump-starting and tire inflation alongside a display and flashlight, with listed dimensions for storage planning. Its supplied-component details are limited, so verify the included setup meets your needs.
Full product details
| Brand | Povasee |
|---|---|
| Battery Capacity | 22800 milliamp_hours |
| Compatible with Vehicle Type | All of the above |
| Included Components | Jump Starter |
| Dimensions | 1.9"D x 4.2"W x 7.7"H |
| Item Weight | 1.5 pounds |
| Manufacturer | Shenzhenhaoxinqikejiyouxiangongsi |
| Part Number | A6 |
| Manufacturer Warranty Description | 2 Years |
| Model Number | A6 |
| Voltage | 12 volts |

#9
9. NOCO Boost GB20
- Weight: 16 oz
- Voltage: 12 V
- Compatible with Vehicle Type: ATV, Lawn Mower, Motorcycle, Passenger Car…
Best for: For compact gas-engine emergencies.
Why it ranks #9: At 16 ounces, it is a compact option with spark-proof and reverse-polarity protection, but its 500A output is rated only for engines up to 4.0L gas.
At 16 ounces, the NOCO GB20 offers a particularly light jump starter with 500 peak amps for gas engines up to 4.0L. That combination suits drivers who want a portable roadside backup for a smaller vehicle, while spark-proof and reverse-polarity protections help guard against connection mistakes during a stressful battery failure.
The manufacturer lists up to 20 starts per charge, giving the GB20 usefulness beyond a single roadside incident before it needs recharging. Its integrated power bank can supply emergency power to phones and tablets, and the stated three-hour recharge time helps owners plan maintenance. The included needle-nosed booster clamps and 12V compatibility serve listed vehicles such as passenger cars, motorcycles, and lawn mowers. Keep the 4.0L gas-engine limit in mind when selecting it.
- 500 peak amps for gas engines up to 4.0L
- Up to 20 starts per charge
- 16-ounce listed weight
- Power bank, spark-proof protection, and reverse-polarity protection
- It is specified for gas engines only, up to 4.0L.
Skip it if you need diesel-engine support or more starting capacity; the NOCO GB40 lists support for 3.0L diesel engines and 1,000 peak amps.
The GB20 fits drivers of smaller 12V gas-powered vehicles who value low weight, device charging, and protected clamp connections. Its listed engine coverage stops at 4.0L gas, so it is not the choice for diesel needs.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 2150 milliamp_hours |
| Compatible with Vehicle Type | ATV, Lawn Mower, Motorcycle, Passenger Car, RV, Tractor, UTV, Van, Watercraft |
| Included Components | 1-Year Limited Warranty, GB20 Portable Car Battery Jump Starter Pack, Microfiber Storage Bag, Needle-Nosed Booster Clamps, USB-C Cable, User Guide for Jump Starter |
| Dimensions | 4.61"D x 8.19"W x 4.21"H |
| Item Weight | 16 ounces |
| Manufacturer | NOCO |
| Part Number | GB20 |
| Manufacturer Warranty Description | 1-Year Limited Warranty |
| Model Number | GB20 |
| Voltage | 12 volts |
Listed on Amazon as: NOCO Boost GB20 500A UltraSafe Jump Starter, 12V Lithium Battery Booster
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#10
10. Clore Automotive JNC660
- Weight: 18 lb
- Voltage: 12 V
- Compatible with Vehicle Type: ATV, Bus, Lawn Mower, Passenger Car, RV…
Best for: For workshop and roadside cable reach.
Why it ranks #10: Its 1700 peak amps, 22Ah battery, and 46-inch cables offer substantial equipment, but its 18-pound weight makes it less portable than the lithium packs.
The Clore Automotive JNC660 uses a 22Ah Clore Proformer battery and 46-inch heavy-duty cables, giving users substantial cable reach around a vehicle during a jump-start. Its 1,700 peak amps and 12V output suit a broad range of listed vehicles, while a built-in voltmeter shows the onboard battery’s charge status.
The 46-inch #2 AWG cables can reach starting points across vehicles of different shapes, according to the supplied product information, supporting a practical setup without placing the unit right beside the battery. Its voltmeter helps users check onboard charge status, and the DC outlet can power 12V accessories. At 18 pounds and 16.3 inches tall, it takes more storage space than lightweight lithium packs, making vehicle or workshop storage an important consideration.
- 1,700 peak amps from a 22Ah Clore Proformer battery
- 46-inch heavy-duty #2 AWG cables
- Voltmeter displays onboard battery charge status
- DC outlet for 12V accessories
- At 18 pounds, it is substantially heavier than small portable lithium jump packs.
Skip it if you need a lightweight pack for frequent carrying; the NOCO GB20 weighs 16 ounces and lists 500 peak amps for gas engines up to 4.0L.
The JNC660 suits mechanics, tow operators, and drivers who value long cable reach, charge-status visibility, and a 12V accessory outlet. Its 18-pound weight and larger dimensions favor vehicle or workshop storage over carrying.
Full product details
| Brand | Clore Automotive |
|---|---|
| Battery Capacity | 22 |
| Compatible with Vehicle Type | ATV, Bus, Lawn Mower, Passenger Car, RV, Tractor, Truck, Van, Watercraft |
| Included Components | JNC660 12V Jump Starter |
| Dimensions | 5.1"D x 14.1"W x 16.3"H |
| Item Weight | 18 pounds |
| Manufacturer | Clore Automotive |
| Part Number | JNC660 |
| Manufacturer Warranty Description | 1 Year Warranty |
| Model Number | JNC660 |
| Voltage | 12 volts |
Listed on Amazon as: Clore Automotive Jump-N-Carry JNC660 1700 Peak Amp 12 Volt Jump Starter , Blue
View on AmazonWhy a Jump Starter Can Fail to Start a Car
A jump starter can fail even when its peak-amp figure looks sufficient if the battery pack is discharged, the clamps are connected poorly, or the vehicle exceeds the device’s stated engine limits. The listed products show why checking more than peak current matters: NOCO Boost GB40 specifies up to 6.0L gas and 3.0L diesel, while S ZEVZO ET03 lists up to 8.0L gas and 7.0L diesel and a force-start function for 0V batteries. That feature is not the same as a guarantee that every discharged battery or vehicle will start.
Check the starter’s charge before relying on it, follow its manual and your vehicle manual, and make secure clamp connections at the specified points. If there is damage, leaking, unusual heat, or repeated failure, stop and seek qualified assistance rather than repeatedly attempting a jump.
How to Choose a Portable Car Jump Starter
Engine size and peak current
Choose a starter whose stated engine coverage includes your vehicle, rather than relying on peak amps alone. The options range from the 500A NOCO Boost GB20, rated for up to 4.0L gas engines, to the 6000A OXILAM Y2, which claims coverage for all gas and 12L diesel engines. Other examples include the 1000A NOCO Boost GB40 for up to 6.0L gas and 3.0L diesel, and the 5000A Povasee A30 for up to 10L gas or 8L diesel.
Drivers of smaller passenger cars may find the narrower-rated NOCO options suitable; owners of larger engines should prioritize a model whose stated limits cover their engine.
Portability and carry weight
Consider how much room and weight you are willing to keep in the vehicle, because the listed models vary from pocketable packs to a heavy-duty unit. NOCO Boost GB20 is listed at 16 ounces, Povasee A30 at 1.1 pounds, and NOCO Boost GB40 at 2.4 pounds. The WOLFBOX MV24A weighs 5.3 pounds, while the Clore Automotive JNC660 weighs 18 pounds and measures 5.1 by 14.1 by 16.3 inches.
A driver who wants a compact emergency pack may prefer one of the lighter lithium models. Someone prioritizing a larger battery and 46-inch cables over easy storage may accept the JNC660’s much greater weight.
Useful extras and claimed starts
Decide which additional functions you will actually use, and treat stated starts per charge as a manufacturer claim rather than a guarantee. NOCO Boost GB40 includes a power bank and claims up to 20 starts per charge; Povasee A30 lists two USB outputs and about 60 starts. S ZEVZO ET03 claims up to 50 starts and includes an LCD display and storage case.
For tire emergencies, WOLFBOX MV24A combines jump starting with a 160PSI compressor, while Joltekon VP30 lists a 150PSI inflator and several emergency light modes. A driver who mainly needs battery backup can keep the choice simple; someone who wants to consolidate roadside equipment may favor an inflator combination, accepting its added size and weight.
Which Portable Car Jump Starter Should You Choose?
For a general-purpose, safety-focused choice for a passenger car, choose the NOCO Boost GB40: it pairs 1000A output with spark-proof and reverse-polarity protection. If your engine is larger and you want a compact high-output pack, the Povasee A30 lists 5000A, up to 10L gas or 8L diesel coverage, and weighs 1.1 pounds. For a stated 0V battery force-start function, consider the S ZEVZO ET03.
Drivers who want an integrated tire compressor can compare the WOLFBOX MV24A, rated at 160PSI, with the Joltekon VP30 and Povasee A6, both listing 150PSI. Choose the NOCO Boost GB20 for a lighter, lower-output option rated for up to 4.0L gas engines.
The Clore Automotive JNC660 is better suited to buyers willing to trade portability for its 22Ah battery and long cables.
Related Buying Guides
- Best Portable Jump Starters
- Best Portable Jump Starter For Hybrid Cars
- Best Car Battery Jump Starters
- Best Lithium Car Jump Starter
- Best Jump Starter For Trucks
- Best Motorcycle Jump Starter
Frequently Asked Questions
How often should I recharge a portable car jump starter while it is stored?
Follow the charging and storage schedule in the jump starter’s manual, since recommendations can vary by model. Check its charge indicator periodically, and recharge it when the manufacturer advises or the indicator shows that it needs power. Before relying on it for a trip, confirm it is charged and that its cables and clamps are in good condition.
What should I do if the jumper clamps spark or the vehicle does not start?
Stop and do not keep attempting a jump if clamps spark unexpectedly or the vehicle does not start. Turn off the jump starter, disconnect the clamps as directed in its manual, and check that the connections and polarity are correct. Consult the vehicle and jump-starter instructions; seek qualified help if the cause is unclear.
Can a portable jump starter safely remain in a car during hot or freezing weather?
Check the jump starter’s manual for its permitted storage-temperature range before leaving it in a vehicle. A parked car can experience temperature extremes, so do not assume the unit can safely remain inside in hot or freezing conditions. If the manual does not clearly cover the conditions, store it somewhere within the stated range.
How do I check whether a jump starter is suitable for my engine?
Compare the jump starter’s stated engine coverage with your vehicle’s engine type and size before buying. For example, the GB40 is rated for engines up to 6.0L gas and 3.0L diesel, while the A30 lists up to 10L gas or 8L diesel. If your vehicle falls outside the stated coverage, choose an option that lists compatibility.
What should I consider if I want a jump starter that can inflate tires?
Look for an integrated compressor and compare its listed pressure rating with your needs. The WOLFBOX MV24A lists a 160PSI inflator, while the Joltekon VP30 and Povasee A6 list 150PSI. Check the product instructions for operating guidance, and consider whether the added compressor equipment suits how you plan to carry and use the unit.
Final Words
For a general-purpose passenger-car choice, the NOCO Boost GB40 balances 1000A output with listed spark-proof and reverse-polarity protection. Match any alternative to your priorities: the A30 lists greater engine coverage in a compact pack, the ET03 states a 0V force-start function, and several options add tire inflators. If portability matters less than a 22Ah battery and long cables, consider the JNC660.
Check engine compatibility and storage guidance before deciding.


