Best Backup Battery For Car: Jump Starters Compared

#1 · Best Overall

1. NOCO 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: Higher-capacity NOCO engine coverage.

Why it ranks #1: Its 2,000 peak amps support up to 8.0L gas and 6.0L diesel engines, with up to 40 starts per charge and spark-proof, reverse-polarity protection.

With 2,000 amps of peak lithium power, the NOCO Boost GB70 raises the engine ceiling to 8.0L gas and 6.0L diesel while supporting up to 40 starts per charge. Spark-proof and reverse-polarity protection add safeguards at the clamps, making it a substantial 12V option for larger vehicles.

The GB70’s broader stated engine range than a compact starter suits owners of trucks, RVs, tractors, and other listed 12V vehicles. Its integrated power bank can provide emergency power to smartphones and tablets, extending its usefulness during a roadside wait or trip. Recharging takes six hours according to the supplied features, so owners should plan ahead before relying on it for another outing. At five pounds, it requires more storage space than a very small pack.

Skip it if you need a three-hour recharge; the NOCO Boost GB40 lists that shorter recharge time.

Choose the GB70 for a 12V truck, RV, or other vehicle within its 8.0L gas and 6.0L diesel limits. Its high start count and device-charging role suit road-trip kits, while its five-pound weight and six-hour recharge call for planning.

Listed on Amazon as: NOCO Boost GB70 2000A UltraSafe Jump Starter, 12V Lithium Battery Booster

#2 · Compact Pick

2. NOCO 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 car and motorcycle backup.

Why it ranks #2: At 2.4 pounds, it is a portable choice for engines up to 6.0L gas and 3.0L diesel, with 1,000 peak amps and up to 20 starts per charge.

The NOCO Boost GB40 pairs 1,000-amp peak power with spark-proof and reverse-polarity protection, helping drivers jump-start a dead 12V battery with safer clamp connections. Its lithium pack supports up to 20 starts per charge on engines up to 6.0L gas or 3.0L diesel, covering many everyday cars and motorcycles.

The GB40’s 2.4-pound weight and compact 4.61-by-8.19-by-4.21-inch dimensions make it easier to keep in a vehicle than a larger emergency kit. Its integrated power bank can supply emergency power to phones and tablets, while the stated three-hour recharge time helps return the unit to service between outings. Compatibility includes cars, motorcycles, trucks, RVs, ATVs, and watercraft, although the engine-size limits make it a better match for moderate vehicles than larger engines.

Skip it if you need support beyond 6.0L gas or 3.0L diesel; the NOCO Boost GB70 covers larger listed engines.

Choose the GB40 for a compact emergency kit serving a passenger car, motorcycle, ATV, or similar 12V vehicle within its engine limits. Its phone-charging power bank adds utility, but larger engines call for a unit with a higher stated capacity.

Listed on Amazon as: NOCO Boost GB40 12V 1000A UltraSafe Portable Lithium Jump Starter

#3 · High Start Count

3. 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-start-count mixed-vehicle kit.

Why it ranks #3: It specifies 6,000 peak amps, support for 12L diesel engines, and up to 60 jump starts per charge, plus a 48-month warranty.

A stated 60 jump starts per full charge sets the OXILAM Y2 apart for drivers who want repeated backup without recharging after every use. Its 6,000-amp peak output is specified for all gas engines and diesels up to 12L, while an LED display and light support roadside operation.

The Y2’s broad engine claims and 12V compatibility span cars, pickups, RVs, tractors, motorcycles, and other listed vehicles, making it relevant to households or work fleets with varied equipment. The LED display gives a visible status point while preparing a jump, and the LED light can assist in low-light situations. USB and Type-C ports let the unit serve as a power bank as well, so its role extends beyond starting a vehicle.

Skip it if you need 24V starting support; the Gillaway V10 lists both 12V and 24V operation.

The OXILAM Y2 suits drivers managing several 12V vehicles who value a high stated start count and broad engine coverage. Its display, light, and charging ports add roadside functions, but it is not the pick for a 24V starting system.

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

#4

4. 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: Lightweight everyday 12V starter.

Why it ranks #4: Its 3,000 peak amps are rated for 6.0L gas and 3.0L diesel engines, and the two-year manufacturer warranty is specified.

The AstroAI S8 weighs 430 grams and delivers 3,000 amps of peak current, pairing easy-to-carry dimensions with support for 6.0L gas and 3.0L diesel engines. Its Auto-Sense feature flashes a green light when voltage is under 9V and a boost is needed, providing a visual cue during use.

The S8’s 4.5-by-7.9-by-3.7-inch body can fit more readily into a vehicle kit than a larger power station, while its 8,000mAh capacity provides the battery reserve behind its jump-start role. The listed compatibility covers 12V vehicles, including cars, pickups, SUVs, motorcycles, and lawnmowers. Its 45C high-rate battery and 3,000-amp peak are specified for the engine limits above; the simple included cable means the listed accessory set is spare.

Skip it if you need support above 6.0L gas or 3.0L diesel; the GOOLOO A3 lists higher engine limits.

The S8 suits drivers who want a lightweight 12V backup for cars, pickups, SUVs, or lawnmowers within its listed engine range. Its voltage cue may help during setup, but owners of larger engines should choose a starter with a higher stated ceiling.

Listed on Amazon as: AstroAI S8 Car Battery Jump Starter 3000A – Portable 12V Lithium Jump Box

#5

5. S ZEVZO ET03

• Dimensions: 1.5"D x 3.4"W x 7.5"H
• Weight: 1.4 lb
• Battery Capacity: 20000 milliamp hours
• Voltage: 12 V

Best for: Zero-volt battery recovery.

Why it ranks #5: The 4,000-amp unit supports engines up to 8.0L gas and 7.0L diesel, with up to 50 starts per charge and a two-year warranty.

The S ZEVZO ET03 combines 4,000-amp peak output with a force-start function for 0V dead batteries, addressing a situation that can defeat ordinary jump-start attempts. It supports engines up to 8.0L gas and 7.0L diesel, and its listing allows up to 50 starts per charge.

A 20,000mAh capacity supports its stated start count, while the LCD display gives users a visible readout during roadside use. USB ports and an LED light add device-charging and illumination functions, and the included carrying case keeps the unit and smart clamps together. At 1.4 pounds and 1.5-by-3.4-by-7.5 inches, it is relatively easy to store in a vehicle kit; compatibility covers 12V cars, trucks, motorcycles, and lawn mowers.

Skip it if you need to start 24V equipment; the Gillaway V10 lists both 12V and 24V support.

Choose the ET03 for a 12V vehicle kit where 0V recovery, a clear display, and a stated 50-start capacity matter. Its listed engine limits cover many cars and trucks, but operators of 24V equipment need another system.

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

#6

6. CRAFTSMAN CMXCESM264

• Dimensions: 11.8"D x 6"W x 5"H
• Weight: 3.8 lb
• Battery Capacity: 10000 milliamp hours
• Voltage: 12 V

Best for: Multi-battery-type vehicle backup.

Why it ranks #6: Its 1,500 peak amps support up to 8.0L gas and 4.5L diesel engines; it also includes a carrying case and USB-C charging cable.

CRAFTSMAN’s 1,500-amp jump starter combines a USB power pack and LED light with support for gas and diesel engines, offering three emergency functions in one unit. Its stated engine limits reach 8.0L gas and 4.5L diesel, while reverse-polarity protection helps guard against accidentally reversed clamps.

The CMXCESM264 supports standard, AGM, maintenance-free, gel, calcium, EFB, and deep-cycle battery types, useful when a household or garage maintains different equipment. Its listed compatibility includes cars, motorcycles, lawn mowers, boats, trucks, and RVs. The 10,000mAh capacity and included carrying case with built-in cable storage support keeping the starter and leads together, although its 3.8-pound weight and 11.8-inch length make it less compact than pocket-sized packs.

Skip it if you prioritize a smaller, lighter pack; the AstroAI S8 weighs 430g and has smaller listed dimensions.

The CRAFTSMAN fits drivers or equipment owners who need support for varied battery chemistries plus a light and USB power pack. Consider its 3.8-pound weight and 11.8-inch length when choosing a storage spot in a car or garage.

Listed on Amazon as: CRAFTSMAN Portable Car Battery Jump Starter & Power Bank, 12V – CMXCESM264

#7 · Air Compressor

7. GOOLOO A3

• Dimensions: 4.96"D x 5.87"W x 2.3"H
• Battery Capacity: 12000 milliamp hours
• Voltage: 12 V

Best for: Jump starting with tire inflation.

Why it ranks #7: It combines a 3,000-amp jump starter with an air compressor and supports up to 9.0L gas and 6.5L diesel engines.

The GOOLOO A3 adds an air compressor to a 3,000-amp jump starter, combining battery and tire emergencies in one listed device. It supports engines up to 9.0L gas and 6.5L diesel, and its BOOST button is specified for force-starting vehicles when battery voltage is extremely low.

The compressor makes the A3 relevant to drivers who want tire inflation alongside jump-start capability, reducing the need to keep those functions in separate emergency devices. Its stated engine limits cover larger vehicles than many compact starters, and compatibility includes cars, trucks, RVs, tractors, motorcycles, and lawn mowers. GOOLOO specifies more than 1,000 charge cycles and operation in extreme weather, while the 12,000mAh capacity provides the pack’s listed battery reserve.

Skip it if you need a specified 160PSI compressor; the WOLFBOX MV24A lists that pressure rating.

The A3 suits drivers who want one device for jumping a vehicle and handling tire inflation, especially with engines within its stated limits. The BOOST function adds an option for very low voltage, but check whether its unstated compressor rating meets your needs.

Listed on Amazon as: GOOLOO A3 12V 3000A Portable Jump Starter with Air Compressor

#8 · Fast Charging

8. WOLFBOX MV24A

• Dimensions: 2.16"D x 5.28"W x 9.39"H
• Weight: 5.3 lb
• Battery Capacity: 6000 milliamp hours
• Voltage: 12 V

Best for: Inflation and fast-charging roadside kit.

Why it ranks #8: This 4,000-amp jump starter includes a 160 PSI air compressor and a 65W USB-C port, with support for up to 10L gas engines.

The WOLFBOX MV24A pairs a 4,000-amp jump starter with a 160PSI air compressor, covering battery and tire needs in a single device. Its stated engine ceiling is 10L gas or 6L diesel, while 65W USB-C fast charging supports quicker charging of compatible devices through its listed port.

The compressor is specified for inflating tires on pickup trucks and smaller vehicles, so this unit suits drivers who want tire support as well as a jump starter. Its USB-C 65W port, USB-A ports rated at 12W and 18W, and 160W DC continuous output offer several charging routes for compatible equipment. The 88.8Wh battery and included carrying bag support roadside storage, though its 5.3-pound weight makes it a substantial item to carry.

Skip it if you want a lighter jump starter without an integrated compressor; the S ZEVZO ET03 weighs 1.4 pounds.

The MV24A fits drivers who want tire inflation, jump starting, and multiple charging outputs in one roadside unit, especially for pickups and smaller vehicles. Its 5.3-pound weight suits trunk storage better than frequent hand-carrying.

Listed on Amazon as: WOLFBOX MV24A 4000A Jump Starter with 160PSI Air Compressor, 12V Car Battery Booster, 88.8Wh Portable Jump Box (10L Gas/6L Diesel) with 65W Fast Charging, Tire Inflator, Jumper Cables, LED Light

#9

9. Gillaway V10

• Dimensions: 8"D x 6.5"W x 9"H
• Weight: 1.2 lb
• Battery Capacity: 42000 milliamp hours
• Voltage: 12 V

Best for: 12V and 24V heavy-duty backup.

Why it ranks #9: Its listed 42,000 mAh battery capacity and 10,000-amp starting current stand out, though the 12V and 24V descriptions warrant careful compatibility checking.

The Gillaway V10 combines 12V and 24V starting support with a stated 10,000-amp starting current, addressing drivers with both standard vehicles and heavier equipment. Its listing also specifies operation from -4°F to 140°F and support for petrol or diesel engines, extending its stated use across varied outdoor conditions.

A 42,000mAh portable power-station capacity gives the V10 a second role beyond jump-starting, with the supplied description identifying it for camping, travel, hunting, and blackouts. Its 12V/24V support covers a wider range of electrical systems than a 12V-only starter, while the listed vehicle examples include trucks, trailers, vans, yachts, excavators, and tractors. The product claims support for up to 200 starts, though its 8-by-6.5-by-9-inch form deserves storage space.

Skip it if you want a compact pack for a glove compartment; the NOCO Boost GB40 has smaller listed dimensions.

Pick the V10 if your backup plan includes 24V equipment, outdoor power, or vehicles such as trucks and tractors. Its substantial listed dimensions suit storage with gear rather than a tight compartment, and its broad claims should match your system needs.

Listed on Amazon as: Gillaway V10 10000A Car Jump Starter, Portable Power Station Backup Lithium Battery,12V/24V Heavy Duty Truck Jump Starter Battery Pack for Outdoors Camping Travel Hunting Blackout

#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: Portable WOLFBOX jump and inflator.

Why it ranks #10: The listing specifies a 12V, 4,000-amp jump starter and 88.8Wh battery, but provides fewer vehicle-support details than the higher-ranked options.

The WOLFBOX MegaVolt24 is listed with an 88.8Wh battery and 4,000-amp output, with supplied product information also identifying it as a jump starter with an air pump. That combination gives drivers a single portable unit for battery backup and tire-related emergencies, though the supplied specifications list passenger cars as its compatible vehicle type.

Its 3-pound weight and 1.5-by-3.86-by-9.33-inch dimensions give the MegaVolt24 a defined storage footprint for a car emergency kit. The 88.8Wh capacity and 4,000-amp output are the listed power specifications, while the supplied additional facts identify an air pump and tire inflator role. Unlike the MV24A listing, this product’s supplied specifications do not state an engine-size ceiling or an air-pressure rating, so buyers should base their selection on the supported passenger-car use and documented details.

Skip it if you need a stated 160PSI rating and engine limits; the WOLFBOX MV24A lists both.

The MegaVolt24 suits passenger-car owners seeking a portable jump starter that supplied facts also identify with an air pump. Its compact listed dimensions support vehicle storage, but buyers needing documented engine limits or compressor pressure should select a model that states them.

Listed on Amazon as: WOLFBOX 4000A &88.8Wh Battery Jumper Starter Portable(10L/10L),with Booster