A strong lithium jump starter delivers enough peak current for your engine, clear vehicle compatibility, and useful safeguards for an emergency roadside start. The NOCO Boost GB150 suits drivers who want high starting capacity and up to 80 starts per charge, while smaller options in this roundup better fit everyday cars and lighter carry needs. These ten 12V models range from 1,000 to 4,250 peak amps and include compact units, high-output boosters, and devices with fast charging or display features.
Compare the stated engine limits rather than choosing by peak amps alone, and consider the unit’s weight, recharge time, and extra functions. The picks below are ranked by how well their listed specifications and included equipment serve common jump-start needs.
The NOCO Boost GB150 is the best overall choice in this group because it combines 3,000 peak amps with stated support for engines up to 9.0L gas and 7.0L diesel. It can deliver up to 80 starts per charge and includes a power bank, heavy-duty clamps, and charging accessories. For drivers with smaller engines who prefer a lighter unit, lower-output options may be more convenient; buyers with especially large engines should check the GBX155’s higher stated engine limits.
Our Top Picks
Best OverallIts 3,000 peak amps cover engines up to 9.0L gas and 7.0L diesel, with up to 80 starts per charge and spark-proof, reverse-polarity protection.
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Largest Engine FitThe 4,250-amp output is rated for engines up to 10.0L gas and 8.0L diesel, and USB-C Power Delivery recharges it in 2.7 hours.
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Fastest RechargeIt recharges from empty in 1.2 hours, offers up to 60 starts per charge, and includes 100W two-way charging for compatible devices.
View on Amazon- High-Output Pick GOOLOO GP4000
- Best Display Hulkman Alpha85
Compare these lithium jump starters by fit and features
| # | Product | Battery Capacity | Voltage | Weight | Dimensions | Buy |
|---|---|---|---|---|---|---|
| 1 | 1. NOCO Boost GB150Best Overall | 3000 | 12 V | 7.5 lb | 8.19"D x 4.88"W x 13.7"H | View on Amazon |
| 2 | 2. NOCO Boost X GBX155Largest Engine Fit | 6750 milliamp hours | 12 V | 7 lb | 8.18"D x 4.84"W x 13.51"H | View on Amazon |
| 3 | 3. GOOLOO GT4000SFastest Recharge | 20000 milliamp hours | 12 V | — | 9.05"D x 3.93"W x 2.12"H | View on Amazon |
| 4 | 4. GOOLOO GP4000High-Output Pick | 24000 milliamp hours | 12 V | 3.9 lb | 3.92"D x 8.97"W x 1.49"H | View on Amazon |
| 5 | 5. NOCO Boost GB70Drivers of larger-engine vehicles | 5000 milliamp hours | 12 V | 2 kg | 7.4"D x 3.7"W x 12.6"H | View on Amazon |
| 6 | 6. Hulkman Alpha85Best Display | 20000 milliamp hours | 12 V | 4.5 lb | 9.06"D x 4.06"W x 1.82"H | View on Amazon |
| 7 | 7. NOCO Boost X GBX45Quick-recharge everyday drivers | 250 amp hours | 12 V | 1.2 kg | 3.62"D x 4.96"W x 8.23"H | View on Amazon |
| 8 | 8. NOCO Boost GB40Everyday car and light-truck drivers | 2150 milliamp hours | 12 V | 2.4 lb | 4.61"D x 8.19"W x 4.21"H | View on Amazon |
| 9 | 9. AstroAI S8Compact low-voltage recovery | 8000 milliamp hours | 12 V DC | 430 g | 4.5"D x 7.9"W x 3.7"H | View on Amazon |
| 10 | 10. LQKDU JN-8148Cold-weather power and lighting | 3.7 amp hours | 5 V | 13.76 oz | — | View on Amazon |
Detailed Reviews: Best Lithium Jump Starters

#1 · Best Overall
1. NOCO Boost GB150
- Battery Capacity: 3000
- Voltage: 12 V
- Weight: 7.5 lb
- Dimensions: 8.19"D x 4.88"W x 13.7"H
Best for: High-capacity repeat jump-starts.
Why it ranks #1: Its 3,000 peak amps cover engines up to 9.0L gas and 7.0L diesel, with up to 80 starts per charge and spark-proof, reverse-polarity protection.
The NOCO GB150 combines 3,000 amps with up to 80 starts per charge and support for engines up to 9.0L gas or 7.0L diesel. Spark-proof and reverse-polarity protection support safer 12V connections, while the integrated power bank adds emergency charging for phones and tablets.
Up to 80 starts per charge makes the GB150 suited to users who want substantial repeated-use capacity between recharges, though replenishing it takes seven hours. Its 3,000-amp output covers the stated 9.0L gas and 7.0L diesel limits, giving larger-engine owners a clear sizing reference. The integrated power bank adds a roadside role for compatible devices. At 7.5 pounds and 13.7 inches tall, it is better suited to a planned vehicle storage location than a small everyday pocket.
- 3,000-amp peak output
- Up to 80 starts per charge
- Supports engines up to 9.0L gas and 7.0L diesel
- Spark-proof and reverse-polarity protection
- Its seven-hour recharge takes longer than the NOCO GBX155’s stated 2.7 hours.
Skip it if you need a faster stated recharge; the NOCO GBX155 recharges in 2.7 hours via USB-C Power Delivery.
The GB150 suits owners of larger compatible 12V vehicles who value up to 80 starts and a device-charging power bank. Its 7.5-pound weight and seven-hour recharge are important storage and maintenance considerations.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 3000 |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 1-Year Limited Warranty, GB150 Portable Car Battery Jump Starter Pack, Heavy-Duty Booster Clamps, USB-C Charging Cable, User Guide for Jump Starter, XGC Cable, XGC Male and Female Connectors |
| Dimensions | 8.19"D x 4.88"W x 13.7"H |
| Item Weight | 7.5 pounds |
| Manufacturer | NOCO |
| Part Number | GB150 |
| Manufacturer Warranty Description | 1-Year Limited Warranty |
| Model Number | GB150 |
| Voltage | 12 volts |
Listed on Amazon as: NOCO Boost GB150: 3000A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables – for 9.0L Gas and 7.0L Diesel Engines
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#2 · Largest Engine Fit
2. NOCO Boost X GBX155
- Battery Capacity: 6750 milliamp hours
- Voltage: 12 V
- Weight: 7 lb
- Dimensions: 8.18"D x 4.84"W x 13.51"H
Best for: Large gas and diesel engines.
Why it ranks #2: The 4,250-amp output is rated for engines up to 10.0L gas and 8.0L diesel, and USB-C Power Delivery recharges it in 2.7 hours.
NOCO’s GBX155 delivers 4,250 amps and supports gas engines up to 10.0L and diesel engines up to 8.0L, making its engine coverage the clearest reason to choose it. USB-C Power Delivery recharges it in 2.7 hours, while UltraSafe 2.0 adds spark-proof and reverse-polarity protection.
The high output and stated engine limits suit drivers who need a jump starter for larger 12V vehicles, while UltraSafe 2.0’s protections help reduce connection errors. USB-C Power Delivery offers a 2.7-hour recharge, and the included 60W USB-C power bank can also supply compatible devices. At 7 pounds and about 13.51 inches tall, it requires more vehicle storage room than smaller units. The supplied heavy-duty clamps and storage bag keep key jump-start equipment together.
- 4,250-amp peak output
- Supports engines up to 10.0L gas and 8.0L diesel
- 2.7-hour USB-C Power Delivery recharge
- UltraSafe 2.0 spark-proof and reverse-polarity protection
- At 7 pounds, it is a heavy option for buyers prioritizing a lightweight pack.
Skip it if you prioritize a lighter unit for smaller engines; the NOCO GBX45 weighs 1.2 kg and supports up to 6.5L gas and 4.0L diesel.
Choose the GBX155 for larger gas or diesel engines when high output, protected connections, and USB-C charging matter. Its 7-pound weight and 13.51-inch height make storage space an important fit consideration.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 6750 milliamp_hours |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 1-Year Warranty, 12V USB-C Fast Charger, GBX155 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack, Heavy-Duty Jumper Cable Clamps, Microfiber Storage Bag, Power Bank with 60W USB-C Power Delivery, USB-C Charging Cable |
| Dimensions | 8.18"D x 4.84"W x 13.51"H |
| Item Weight | 7 pounds |
| Manufacturer | NOCO |
| Part Number | GBX155 |
| Manufacturer Warranty Description | 1 Year Limited |
| Model Number | GBX155 |
| 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: NOCO Boost X GBX155: 4250A UltraSafe Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, Power Bank & Jumper Cables – for 10.0L Gas and 8.0L Diesel Engines
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#3 · Fastest Recharge
3. GOOLOO GT4000S
- Battery Capacity: 20000 milliamp hours
- Voltage: 12 V
- Dimensions: 9.05"D x 3.93"W x 2.12"H
Best for: Fast-recharge frequent-use drivers.
Why it ranks #3: It recharges from empty in 1.2 hours, offers up to 60 starts per charge, and includes 100W two-way charging for compatible devices.
The GOOLOO GT4000S recharges from empty to full in 1.2 hours using its 100W fast-charging system, a useful distinction for drivers who need to restore a jump pack quickly. The description says five minutes of charging can provide enough power for a start, and a full charge supports up to 60 jump-starts.
A 100W car charger is included, and the Type-C port also accepts a fast-charging charger, giving owners more than one stated charging route. The advertised 1.2-hour full recharge can reduce downtime between uses, while five minutes of charging is claimed to provide enough power for one start. The pack is specified for 12V vehicles across cars, trucks, motorcycles, and other types. Its operating range of -20°C to 60°C is a relevant boundary for use in severe temperatures.
- 100W two-way fast charging
- Full recharge in 1.2 hours
- Five minutes of charging claimed to enable a start
- Up to 60 starts per full charge
- Its stated operating range ends at 60°C.
Skip it if you need a stated operating range above 60°C; the GT4000S lists operation from -20°C to 60°C.
The GT4000S suits drivers who value fast replenishment and frequent jump-start capacity across compatible 12V vehicles. Its stated temperature range of -20°C to 60°C is the key operating boundary to consider for the conditions where you will keep and use it.
Full product details
| Brand | GOOLOO |
|---|---|
| Battery Capacity | 20000 milliamp_hours |
| Compatible with Vehicle Type | Lawn Mower, Van, Watercraft, Passenger Car, ATV, Tractor, Bus, Truck, Scooter, Snowmobile, UTV, Motorcycle, RV |
| Dimensions | 9.05"D x 3.93"W x 2.12"H |
| Manufacturer | GOOLOO |
| Part Number | GT4000S |
| Model Number | GT4000S |
| Voltage | 12 volts |
Listed on Amazon as: GOOLOO GT4000S 12V 4000A Peak Jump Starter with 100W Two-Way Fast Charging
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#4 · High-Output Pick
4. GOOLOO GP4000
- Battery Capacity: 24000 milliamp hours
- Voltage: 12 V
- Weight: 3.9 lb
- Dimensions: 3.92"D x 8.97"W x 1.49"H
Best for: Large-engine roadside assistance.
Why it ranks #4: Its 4,000-amp output is stated to handle gas and diesel engines up to 10.0L, and a boost button can force a restart at very low battery voltage.
The GOOLOO GP4000 pairs 4,000 amps with a stated engine ceiling of 10.0L for both gasoline and diesel, making it the option here for drivers facing larger-engine jump-start needs. A dedicated BOOST button can force a restart when battery voltage is extremely low.
The BOOST button addresses extremely low battery voltage, giving the driver a specific override when ordinary starting conditions are not enough. Its 4,000-amp output is rated for all gasoline engines and diesel engines up to 10.0L, while 12V compatibility covers vehicles including motorcycles, trucks, and ATVs. The included intelligent jumper cable and EVA storage case keep the connection equipment together for transport. At 3.9 pounds, it is portable, though not as light as the smallest packs.
- 4,000-amp peak output
- BOOST button for extremely low battery voltage
- Supports diesel engines up to 10.0L
- Includes intelligent jumper cable and EVA case
- At 3.9 pounds, it is heavier than the listed 2.4-pound NOCO GB40.
Skip it if you want a jump starter with a stated power-bank function; the Hulkman Alpha85 lists a 74Wh power bank.
Consider the GP4000 if your 12V vehicle has a larger engine or you want a BOOST control for extremely low battery voltage. Its 3.9-pound body and stated 10.0L diesel ceiling are practical boundaries for storage and vehicle choice.
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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#5
5. NOCO Boost GB70
- Battery Capacity: 5000 milliamp hours
- Voltage: 12 V
- Weight: 2 kg
- Dimensions: 7.4"D x 3.7"W x 12.6"H
Best for: Drivers of larger-engine vehicles.
Why it ranks #5: The 2,000-amp unit supports engines up to 8.0L gas and 6.0L diesel, provides up to 40 starts per charge, and has spark-proof connections.
With 2,000 amps and support for engines up to 8.0L gas and 6.0L diesel, the NOCO GB70 reaches beyond smaller jump packs’ stated engine limits. It offers up to 40 starts per charge, while spark-proof and reverse-polarity protection help keep 12V clamp connections controlled.
The GB70’s stated capacity of up to 40 starts per charge can suit drivers who want repeated jump-start capability before recharging; its recharge time is six hours. The integrated power bank also supplies emergency power to smartphones and tablets, extending its roadside role. At 2 kg and 12.6 inches tall, it takes more storage room than a pocket-sized accessory, so plan a dedicated spot in a vehicle. Its 2,000-amp output covers the stated engine ceiling, not every heavy-duty application.
- 2,000-amp peak output
- Up to 40 starts per charge
- Supports engines up to 8.0L gas and 6.0L diesel
- Spark-proof and reverse-polarity protection
- At 2 kg and 12.6 inches tall, it needs more storage space than a compact jump pack.
Skip it if you need a lighter unit for smaller engines; the NOCO GB40 weighs 2.4 pounds and supports engines up to 6.0L gas.
The GB70 suits owners of larger cars, trucks, and other compatible 12V vehicles who value up to 40 starts and a phone-charging power bank. Account for its 2 kg weight and six-hour recharge when choosing storage and maintenance routines.
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 | 2 kg |
| 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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#6 · Best Display
6. Hulkman Alpha85
- Battery Capacity: 20000 milliamp hours
- Voltage: 12 V
- Weight: 4.5 lb
- Dimensions: 9.06"D x 4.06"W x 1.82"H
Best for: Display-led SUV and truck owners.
Why it ranks #6: It pairs 2,000 peak amps and up to 60 starts per charge with a 3.3-inch screen showing operational status, battery level, and possible errors.
Hulkman’s Alpha85 uses a 3.3-inch smart screen to show operating status, battery level, and possible errors, helping drivers see key information while preparing a jump. Its 2,000-amp output supports engines up to 8.5L gas and 6.0L diesel, with up to 60 starts per charge.
The screen makes charge level and possible errors visible at a glance, helping the user assess the unit before connecting its included booster clamps. With support for engines up to 8.5L gas and 6.0L diesel, the Alpha85 covers a stated range that includes many SUVs and trucks. Its 74Wh power bank extends use beyond jump-starting, and the included 65W wall charger and Type-C cable provide charging accessories. At 4.5 pounds, it calls for a secure, accessible storage spot.
- 3.3-inch screen shows status, battery level, and possible errors
- 2,000-amp peak output
- Up to 60 starts per charge
- 74Wh power bank
- At 4.5 pounds, it weighs more than a compact jump pack such as the NOCO GB40.
Skip it if you want a lighter pack for smaller engines; the NOCO GB40 weighs 2.4 pounds and covers engines up to 6.0L gas.
The Alpha85 suits SUV and truck owners who want a readable status screen, repeated-start capacity, and a power bank in one unit. Its 4.5-pound weight and stated engine limits should guide storage and vehicle fit.
Full product details
| Brand | Hulkman |
|---|---|
| Battery Capacity | 20000 milliamp_hours |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 12V Booster Clamps, 65W Wall Charger and Type-C Cable, Alpha 85 Jump Starter, Cigarette Lighter Socket Adapter, User Manual *1 and a 2-Year Guarantee |
| Dimensions | 9.06"D x 4.06"W x 1.82"H |
| Item Weight | 4.5 pounds |
| Manufacturer | Hulkman |
| Part Number | Alpha 85 |
| Manufacturer Warranty Description | 2 Year Warranty |
| Model Number | Alpha 85 |
| Voltage | 12 volts |

#7
7. NOCO Boost X GBX45
- Battery Capacity: 250 amp hours
- Voltage: 12 V
- Weight: 1.2 kg
- Dimensions: 3.62"D x 4.96"W x 8.23"H
Best for: Quick-recharge everyday drivers.
Why it ranks #7: Its 1,250 amps are rated for engines up to 6.5L gas and 4.0L diesel, while USB-C Power Delivery enables a stated 48-minute recharge.
The NOCO GBX45 recharges in 48 minutes via USB-C Power Delivery, so drivers can restore it quickly between uses. Its 1,250-amp output supports engines up to 6.5L gas and 4.0L diesel, while UltraSafe 2.0 provides spark-proof and reverse-polarity protection for connections.
The short stated recharge time makes routine battery upkeep less time-consuming than a long recharge cycle, and USB-C Power Delivery provides the charging method. Its engine ratings cover gas engines up to 6.5L and diesel up to 4.0L, offering a specific guide for vehicle fit. UltraSafe 2.0’s spark-proof and reverse-polarity protections help guard against connection mistakes. The included 60W USB-C power bank can charge compatible devices, adding utility beyond the jump-start role.
- 48-minute USB-C Power Delivery recharge
- 1,250-amp peak output
- Supports engines up to 6.5L gas and 4.0L diesel
- UltraSafe 2.0 spark-proof and reverse-polarity protection
- Its diesel engine ceiling is 4.0L.
Skip it if you need support for diesel engines larger than 4.0L; the NOCO GB70 lists coverage up to 6.0L diesel.
The GBX45 is a fit for drivers who want quick USB-C recharging, protected connections, and a power bank in a portable 12V jump starter. Its 4.0L diesel and 6.5L gas ceilings define which vehicles it can serve.
Full product details
| Brand | NOCO |
|---|---|
| Battery Capacity | 250 amp_hours |
| Compatible with Vehicle Type | ATV, Motorcycle, Passenger Car, RV, Tractor, Truck, UTV, Van, Watercraft |
| Included Components | 1-Year Warranty, GBX45 UltraSafe Portable Lithium Car Battery Booster Jump Starter Pack, Heavy-Duty Jumper Cable Clamps, Microfiber Storage Bag, Power Bank with 60W USB-C Power Delivery, USB-C Charging Cable |
| Dimensions | 3.62"D x 4.96"W x 8.23"H |
| Item Weight | 1.2 kg |
| Manufacturer | NOCO |
| Part Number | GBX45 |
| Manufacturer Warranty Description | 1 Year Limited |
| Model Number | GBX45 |
| 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: NOCO Boost GBX45 1250A UltraSafe Jump Starter, 12V Lithium Battery Booster
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#8
8. NOCO Boost GB40
- Battery Capacity: 2150 milliamp hours
- Voltage: 12 V
- Weight: 2.4 lb
- Dimensions: 4.61"D x 8.19"W x 4.21"H
Best for: Everyday car and light-truck drivers.
Why it ranks #8: This 1,000-amp model handles engines up to 6.0L gas and 3.0L diesel, offers up to 20 starts per charge, and weighs 2.4 pounds.
The GB40’s 1,000-amp output supports up to 20 starts per charge on engines as large as 6.0L gas and 3.0L diesel, giving drivers a compact roadside option. Spark-proof and reverse-polarity protection help make 12V connections less error-prone, while its integrated power bank can supply emergency power to phones and tablets.
At 2.4 pounds and about 8.19 by 4.61 by 4.21 inches, the GB40 is sized for storage in a vehicle rather than permanent installation. Its 1,000-amp peak output covers the stated gas and diesel engine limits, and up to 20 starts per charge can provide repeat-use capacity between recharges. The three-hour recharge time helps plan upkeep. Spark-proof and reverse-polarity protection support safer clamp connections, and the power bank adds a use for the unit between jump-starts.
- 1,000-amp peak output
- Up to 20 starts per charge
- Spark-proof and reverse-polarity protection
- Integrated phone and tablet power bank
- Its engine limit is 6.0L gas and 3.0L diesel.
Skip it if you need to start engines larger than 6.0L gas or 3.0L diesel; the NOCO GB70 supports larger listed engines.
Choose the GB40 for a car, motorcycle, or other 12V vehicle within its stated engine limits, especially when a compact 2.4-pound unit and emergency device charging matter. Its 1,000 amps are not intended for larger listed 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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#9
9. AstroAI S8
- Battery Capacity: 8000 milliamp hours
- Voltage: 12 V DC
- Weight: 430 g
- Dimensions: 4.5"D x 7.9"W x 3.7"H
Best for: Compact low-voltage recovery.
Why it ranks #9: The 1,500-amp S8 supports engines up to 6.0L gas and 3.0L diesel, weighs 430 grams, and includes a two-year manufacturer warranty.
AstroAI’s S8 combines 1,500 amps with a 45C high-rate lithium battery and smart boost mode, giving drivers a way to address low-voltage and fully drained batteries. Its stated engine coverage reaches 6.0L gas and 3.0L diesel, with compatibility also listed for 12V vehicles.
The smart boost mode automatically detects battery voltage, which supports the S8’s focus on low-voltage and fully drained batteries rather than requiring a separate manual selection based on the supplied description. Its 1,500-amp peak output and 45C battery are paired with support for engines up to 6.0L gas or 3.0L diesel. At 430 grams and roughly 7.9 by 4.5 by 3.7 inches, it is easy to set aside in a vehicle. The included cable provides the connection hardware.
- 1,500-amp peak output
- 45C high-rate lithium battery
- Smart boost mode detects battery voltage
- Weighs 430 grams
- Its stated engine limit is 6.0L gas and 3.0L diesel.
Skip it if you need support for diesel engines larger than 3.0L; the NOCO GB70 lists coverage up to 6.0L diesel.
The S8 fits drivers seeking a light, compact jump starter for compatible vehicles with low or drained batteries. Its stated 6.0L gas and 3.0L diesel limits define the fit, so check engine size before relying on it.
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 1500A – Portable 12V Lithium Jump Box
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#10
10. LQKDU JN-8148
- Battery Capacity: 3.7 amp hours
- Voltage: 5 V
- Weight: 13.76 oz
Best for: Cold-weather power and lighting.
Why it ranks #10: Its description claims 5,000 peak amps and support for 9.0L gas or 8.5L diesel engines, but the listed voltage and capacity details are less clear.
The LQKDU jump starter claims 5,000 amps and support for engines up to 9.0L gas or 8.5L diesel, pairing large-engine coverage with a built-in 800-lumen flashlight. Its description also lists operation from -4°F, waterproof and shock-resistant construction, and a 54.74Wh power bank.
For roadside use, the 800-lumen light offers three modes, while the 54.74Wh power bank can serve as a separate source of device power. The description claims up to 20 jump starts and a three-hour full charge, giving owners concrete upkeep and repeat-use figures. Smart clamps and 10-layer safety protection support the connection process, and the stated -4°F operating point is relevant in cold conditions. The listed compatibility specification names vans, so buyers should weigh that against the broader engine claims.
- 5,000-amp peak power claim
- Three-mode 800-lumen flashlight
- 54.74Wh power bank
- Waterproof and shock-resistant construction
- The compatibility specification lists vans, despite broader engine-capacity claims in the description.
Skip it if you need broader vehicle compatibility explicitly listed; the NOCO GB40 names cars, trucks, motorcycles, and several other vehicle types.
This LQKDU pack may suit buyers who prioritize a bright built-in light, device charging, and the stated cold-weather operating point. Its compatibility listing names vans, so that limitation deserves attention alongside its broader engine claims.
Full product details
| Brand | LQKDU |
|---|---|
| Battery Capacity | 3.7 amp_hours |
| Compatible with Vehicle Type | Van |
| Included Components | 1 *JLQKDU Jump Starter, 1 * Smart Jump Cables, 1 * USB Type-C Charging Cable, 1 * Storage Bag, 1 * User Manual. |
| Dimensions | 6.49"D x 3.54"W x 1.69"H |
| Item Weight | 13.76 ounces |
| Manufacturer | shanweishimowangkejiyouxiangongsi |
| Part Number | JN-8148 |
| Manufacturer Warranty Description | 2 Year Manufacturer |
| Model Number | JN-8148 |
| Voltage | 5 volts |
Listed on Amazon as: Car Battery Jump Starter – 5000A 12V Portable Lithium Jump Box
View on AmazonWhat if the vehicle battery is completely dead?
A deeply discharged battery may need a jump starter with a dedicated boost function, but that feature is not listed for every model here. The GOOLOO GP4000 specifically says its boost button can force a restart when battery voltage is extremely low; the AstroAI S8 description also refers to low-voltage and fully drained batteries. A dead battery is not always merely a low-voltage battery, however, and the supplied specifications do not establish that any model can overcome every fault.
A jump starter cannot repair a failed battery, damaged cables, or another vehicle electrical problem. Follow the instructions supplied with the selected unit, confirm that it is charged, and stop if the clamps or battery become hot or show signs of damage.
If a normal connection does not work, check the product’s own boost-mode instructions rather than repeatedly attempting starts.
Why peak amps alone can mislead
Peak amps are only one part of matching a jump starter to a vehicle; the stated engine-size limits are another essential check. The GOOLOO GP4000 lists 4,000 amps and support for engines up to 10.0L, while the NOCO Boost X GBX155 lists 4,250 amps and limits of 10.0L gas and 8.0L diesel. The smaller NOCO Boost GB40 lists 1,000 amps for up to 6.0L gas and 3.0L diesel.
These ratings show why a higher headline current does not remove the need to check both fuel type and engine size. Compatibility details also vary: many models list cars, trucks, motorcycles, and other vehicles, but do not provide a complete battery-type or vehicle-specific fitment chart.
Confirm your engine falls within the maker’s stated limits before relying on a unit.
How to Choose a Lithium Jump Starter
Engine size and peak current
Choose a model whose stated engine limits cover your vehicle, with some margin if you own more than one. This selection ranges from the NOCO Boost GB40 at 1,000 amps for up to 6.0L gas and 3.0L diesel to the NOCO Boost X GBX155 at 4,250 amps for up to 10.0L gas and 8.0L diesel. The NOCO Boost GB150 lists 3,000 amps and limits of 9.0L gas and 7.0L diesel.
The smaller-output end suits drivers with compatible passenger cars; larger engines or mixed fleets favour a higher-rated model. Check the exact gas and diesel limits rather than treating peak amps as a complete compatibility guarantee.
Starts per charge and recharging
Consider how many starts the maker claims per charge and how quickly you can replenish the unit. Listed figures vary from up to 20 starts for the NOCO Boost GB40 to up to 80 for the NOCO Boost GB150; the Hulkman Alpha85 and GOOLOO GT4000S each claim up to Recharge times are also different: the GT4000S states 1.2 hours, while the GB40 states 3 hours and the GB150 7 hours.
Drivers who need frequent starts or quick turnaround may prefer the higher-start or faster-recharging options. For occasional emergency use, a lower start count may be enough, but keep the unit charged according to its instructions.
Weight, size, and extra functions
Balance carrying convenience against the functions you want beyond jump-starting. The AstroAI S8 weighs 430 grams, the NOCO Boost GB40 weighs 2.4 pounds, and the NOCO Boost X GBX155 weighs 7 pounds. The Hulkman Alpha85 adds a 3.3-inch status screen, while the GOOLOO GT4000S offers 100W two-way charging and the NOCO Boost GB150 provides a power bank.
A lighter, smaller unit may suit a glove compartment or occasional car use; a heavier model can make sense for drivers who prioritize higher engine limits or additional charging functions. Check the listed dimensions as well as weight when you need the jump starter to fit a specific storage space.
Which Lithium Jump Starter Should You Choose?
Choose the NOCO Boost GB150 for the strongest all-around balance in this lineup: 3,000 amps, support for up to 9.0L gas and 7.0L diesel engines, and up to 80 starts per charge. For an engine at the upper end of the listed limits, choose the NOCO Boost X GBX155, rated for 10.0L gas and 8.0L diesel. Drivers who value rapid recharge should consider the GOOLOO GT4000S, which states a 1.2-hour recharge and up to 60 starts.
For a lower-output everyday vehicle, the NOCO Boost GB40 offers 1,000 amps in a 2.4-pound unit. If a screen matters, the Hulkman Alpha85 displays status and battery level.
Match the final choice to your engine’s fuel type and size.
Related Buying Guides
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Frequently Asked Questions
How do you safely connect and disconnect a lithium jump starter?
Follow the jump starter’s manual and vehicle instructions. With the vehicle off, connect the clamps to the battery terminals in the specified order, ensuring the clamps are secure and do not touch each other. Start the vehicle as directed, then disconnect the clamps in the recommended order and store them safely.
Can a portable lithium jump starter revive a completely dead battery?
Not always. A jump starter may help when a battery is discharged, but a battery that is damaged, deeply depleted, or unable to accept a charge may not respond. Follow the unit’s instructions and avoid repeated attempts if the vehicle will not start; have the battery and charging system checked.
How often should you recharge a jump starter kept in a vehicle?
Check its charge level regularly and recharge it according to the manufacturer’s instructions, especially after use. Storage conditions and self-discharge vary by product, so there is no single interval that applies to every unit. Before relying on it for a trip, confirm that it has an adequate charge.
How do you choose a jump starter for your engine?
Match the unit’s stated engine limits to your vehicle’s fuel type and engine size. The GB150 is listed for up to 9.0L gas and 7.0L diesel; the GBX155 is listed for up to 10.0L gas and 8.0L diesel. Check the product’s limits before choosing.
Which features matter beyond peak amps?
Consider the features that fit your routine, such as starts per charge, recharge time, portability, a display, or power-bank capability. The GB150 states up to 80 starts per charge and includes a power bank; the GT4000S states a 1.2-hour recharge, while the Alpha85 has a display.
Final Words
For the strongest all-around balance in this lineup, choose the NOCO Boost GB150: its stated 3,000 peak amps, engine limits, and up to 80 starts per charge suit a broad range of vehicles. If your engine is at the upper end of the listed limits, consider the GBX155. The GT4000S emphasizes rapid recharge, while the GB40 suits lower-output everyday vehicles.
Confirm fuel type and engine size before deciding.


