I’ve ridden motorcycles for over 15 years, and nothing ruins a ride faster than clicking the start button and hearing nothing. A dead battery doesn’t care if you’re in your garage or 50 miles from the nearest town. That’s why I started carrying a portable jump starter in my saddlebag about three years ago, and I haven’t ridden without one since.
The best portable jump starters for motorcycles deliver enough cranking power to start a dead 12V battery while staying light and small enough to stash in a tail bag or under a seat. Lithium technology changed the game here. Modern units weigh 2-5 pounds, hold their charge for months, and pack 1000-4000 amps of peak output into something smaller than a paperback book.
Our team spent the past two months testing 8 popular models on everything from a 250cc sportbike to a 1800cc cruiser. We measured cold-start performance, checked how long each unit holds a charge sitting in storage, and even dropped a couple to see if the IP ratings hold up. We also dug into thousands of rider reviews on forums like r/motorcycles and r/advrider to find out which units real people trust. This guide breaks down everything we learned so you can pick the right jump pack for your bike and budget.
Top 3 Picks for Best Portable Jump Starters for Motorcycles in October
If you’re short on time, here are our three top recommendations. Each one earned its badge based on hands-on testing and rider feedback.
Best Portable Jump Starters for Motorcycles in 2026
Here’s the full lineup of motorcycle jump starters we tested. Each entry includes the key specs so you can scan the table quickly before diving into the detailed reviews below.
| Product | Specifications | Action |
|---|---|---|
| NOCO Boost GB40 |
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 NOCO Boost GB70 |
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 NOCO Boost X GBX55 |
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 NOCO Boost X GBX45 |
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 GOOLOO A3 |
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 GOOLOO GP4000 |
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 Antigravity AG-XP-20 |
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| Schumacher SL1639 |
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1. NOCO Boost GB40 – Reliable All-Rounder for Everyday Riders
NOCO Boost GB40 12V 1000A UltraSafe Portable Lithium Jump Starter
1000A peak output
2.5 lb weight
20 starts per charge
Pros
- Compact 2.5 lb size fits saddlebags
- Spark-proof and reverse polarity protection
- Holds charge for months when stored
- IP65 water and dust resistance
- Built-in 100-lumen LED flashlight
Cons
- Limited to 6.0L gas / 3.0L diesel engines
- Lower capacity than larger models
The GB40 has been my personal go-to for over two years now. It’s the jump starter I keep in my bike’s tail bag because it disappears at just 2.5 pounds and barely takes up any space. NOCO built this unit specifically with beginners in mind, and the UltraSafe spark-proof technology means even if you hook the clamps up backwards, nothing bad happens.
In my testing, the GB40 started a completely dead Yamaha FZ6 on the first try after the bike sat for three weeks without being ridden. The 1000A peak output is more than enough for any motorcycle, including larger cruisers and adventure bikes. The 2150mAh internal battery gave me about 15-18 actual jump starts before needing a recharge, which lines up with NOCO’s claim of “up to 20 starts per charge.”
The built-in flashlight has saved me twice on night rides when I needed to find something I dropped. The seven light modes include SOS and strobe, which is overkill for motorcycle use but nice to have if you’re ever stranded on a dark road. Charging back up takes about 3 hours via the included USB cable, and the unit holds its charge impressively well in storage.
The biggest limitation is engine size. NOCO rates this for 6.0L gas and 3.0L diesel engines, which covers every motorcycle on the market but might leave you short if you also want to jump a truck or large SUV. For pure motorcycle duty, though, the GB40 is hard to beat.
Who should buy the GB40
This is the right pick for riders who want a proven, reliable jump starter for motorcycle-only use. If you commute daily, ride weekends, or store your bike over winter, the GB40’s combination of compact size, long charge retention, and foolproof safety features makes it the safest choice. It’s also our top recommendation for newer riders who haven’t jump-started a bike before.
Who should skip the GB40
If you need to jump larger vehicles like trucks, RVs, or diesel engines above 3.0L, you’ll want to step up to the GB70 or GBX55. Riders who travel months at a time without access to power may also want a unit with USB-C PD charging for faster top-ups.
2. NOCO Boost GB70 – Heavy-Duty Power for Big Bikes and Touring
NOCO Boost GB70 2000A UltraSafe Jump Starter, 12V Lithium Battery Booster
2000A peak output
5.0 lb weight
40 starts per charge
Pros
- Massive 2000A peak output handles 8.0L gas engines
- 40 jump starts per charge
- 400-lumen LED flashlight
- Heavy-duty clamps with copper jaws
- Rugged IP65 housing
Cons
- Heavier at 5.0 lbs
- Bulkier form factor
- Premium price
The GB70 is what I grab when I’m heading out on a long tour or riding something with a big V-twin. With 2000A of peak output, this unit can start anything from a small dirt bike to a 1800cc Gold Wing. I tested it on a Harley-Davidson Road King with a completely dead battery, and it spun the starter over like the battery was fully charged.
The trade-off is size and weight. At 5.0 pounds, the GB70 is twice as heavy as the GB40, and the dimensions make it harder to fit in smaller saddlebags. I carry this one in my tour pack rather than my tail bag. The clamps feel noticeably more substantial than the GB40, with copper jaws that grip battery terminals firmly even when they’re a bit corroded.
Battery capacity jumps to 5000mAh, which translates to about 35-40 jump starts per charge in my real-world testing. For most riders, this means you could go an entire riding season without recharging the unit. The 400-lumen flashlight is genuinely useful for roadside repairs at night and noticeably brighter than the GB40.
The unit feels solid and built to last, with the same rubberized over-molding and IP65 rating that protects the GB40. After two months of testing, the housing still looks new despite being tossed around in my tour pack with tools and gear.
Who should buy the GB70
Riders with large displacement cruisers, baggers, or touring bikes will appreciate the extra headroom the 2000A output provides. This is also the right pick if you want one jump starter that works on both your motorcycle and your car or truck. ADV riders who venture far from cell service should seriously consider the GB70 for the extra capacity.
Who should skip the GB70
If you ride a smaller displacement bike and don’t need the extra cranking power, the GB70 is overkill. The weight and bulk make it less practical for daily commuters who want to keep their bike light. Save your money and go with the GB40 instead.
3. NOCO Boost X GBX55 – Modern USB-C Fast Charging
NOCO Boost GBX55 1750A UltraSafe Jump Starter, 12V Lithium Battery Booster
1750A peak output
3.4 lb weight
USB-C PD fast charging
Pros
- 1750A peak output with UltraSafe 2.0 technology
- USB-C Power Delivery 60W input
- Fast 1.2 hour recharge time
- 200-lumen LED flashlight
- 60-second safety timer
Cons
- Premium price
- Some long-term durability concerns
The GBX55 represents NOCO’s newest generation of jump starters, and the upgrade is most obvious in the charging department. This is the first unit in their lineup to support USB-C Power Delivery at 60W, which means you can fully recharge the unit in just over an hour. Compare that to 3+ hours on older models, and it’s a real quality-of-life improvement.
In testing, the GBX55 started a dead Honda Africa Twin after the bike sat through a cold snap. The 1750A peak output has more than enough muscle for any adventure bike or sportbike. The UltraSafe 2.0 technology adds enhanced thermal efficiency, which is a real benefit if you’re riding in summer heat or storing the unit in a hot garage.
The 60-second timer is a thoughtful safety feature. Once you connect the clamps and start the engine, the unit automatically cuts power after 60 seconds to prevent overheating or accidental damage. It’s a small thing but shows NOCO is thinking about edge cases.
At 3.4 pounds, the GBX55 sits between the GB40 and GB70 in terms of weight. It’s still portable enough for most saddlebags but leans toward the heavier side. The 60-watt USB-C PD port doubles as a laptop charger, which I found genuinely useful on multi-day trips.
Who should buy the GBX55
If you want the latest technology and value fast charging, the GBX55 is the pick. Riders who use USB-C PD chargers for their phones and laptops will appreciate being able to use one charger for everything. The enhanced thermal efficiency makes this a solid choice for hot climates or summer riding.
Who should skip the GBX55
Budget-conscious riders may want to look at older NOCO models with similar performance at lower prices. If you don’t care about USB-C PD and don’t mind slower recharge times, the GB40 or GBX45 deliver comparable jump-starting power for less money.
4. NOCO Boost X GBX45 – Compact Power with Modern Charging
NOCO Boost GBX45 1250A UltraSafe Jump Starter, 12V Lithium Battery Booster
1250A peak output
2.6 lb weight
USB-C 48-min recharge
Pros
- USB-C Power Delivery 60W fast charging
- Full recharge in 48 minutes
- UltraSafe 2.0 safety technology
- 100-lumen LED with 7 modes
- Compact 2.6 lb design
Cons
- Lower 1250A rating than larger models
- Limited to 6.5L gas / 4.0L diesel
The GBX45 hits a sweet spot in NOCO’s lineup. It packs the same UltraSafe 2.0 technology and USB-C PD fast charging as the bigger GBX55 but in a smaller, lighter package. At 2.6 pounds and roughly the size of a small tablet, this is one of the most portable units that still delivers serious jump-starting power.
I tested the GBX45 on a BMW R1250GS with a drained battery after the bike sat for a month during winter storage. The 1250A peak output spun over the big boxer twin without hesitation. The 48-minute full recharge time is genuinely fast. I plugged it in during lunch and it was ready to go before I finished eating.
The 60-watt USB-C PD port also works as a high-speed power bank for laptops, tablets, and phones. I charged my MacBook from 20% to 80% in about an hour using the GBX45, which makes this a genuinely useful travel companion beyond just motorcycle emergencies.
Battery capacity is rated at 250Ah equivalent, and I got about 5-6 jump starts in real-world testing before the unit needed a recharge. That’s fewer than the GB40 but the GBX45 makes up for it with faster charging and USB-C convenience.
Who should buy the GBX45
This is the right choice if you want modern USB-C charging and solid jump-starting power in a compact package. Riders who travel with laptops or USB-C devices will appreciate the high-wattage power bank functionality. It’s also a great pick for sportbike and standard motorcycle owners who don’t need massive cranking amps.
Who should skip the GBX45
If you ride a big V-twin cruiser or need to jump vehicles with large displacement engines, the 1250A output may leave you wanting more. Riders on tight budgets might also find better value in the older GB40, which has similar power at a lower price.
5. GOOLOO A3 – Built-In Air Compressor for Versatility
GOOLOO A3 12V 3000A Portable Jump Starter with Air Compressor
3000A peak output
150 PSI air compressor
3.6 lb weight
Pros
- Built-in 150 PSI air compressor
- 5 inflation modes for different vehicles
- 3000A peak power output
- BOOST function for extremely dead batteries
- 10 safety protection systems
Cons
- 3-4 hour full recharge time
- Only 3-4 hard cranks before draining
- Air compressor adds bulk
The GOOLOO A3 is the only unit in our roundup that doubles as a tire inflator, and that versatility is genuinely useful for motorcycle riders. Motorcycle tires need pressure checks before almost every ride, and having a digital tire inflator built into your jump starter means one less thing to pack on tour.
The 150 PSI air compressor handled my motorcycle tires with room to spare. It also works on car tires, bike tires, and sports balls with five different inflation modes. The auto-shutoff feature kicks in when the target pressure is reached, which is handy when you’re focused on something else. I topped off a low rear tire on my Africa Twin in about 90 seconds.
Jump-starting performance is strong with 3000A peak output, enough to handle engines up to 9.0L gas and 6.5L diesel. The BOOST function is specifically designed for batteries that read near zero volts, which is a common scenario with bikes that have sat for months. The 12000mAh battery delivered about 4-5 jump starts in my testing before needing a recharge.
The downsides are real though. The unit weighs 3.6 pounds and is bulkier than non-compressor models, so it’s not the best choice for tight saddlebag storage. Recharging takes 3-4 hours regardless of what charger you use. The interface also takes some getting used to, with multiple buttons and modes to learn.
Who should buy the GOOLOO A3
This is the right pick for riders who want maximum versatility from a single device. If you check tire pressure frequently or carry a separate inflator on tour, consolidating those functions into one unit saves space. Adventure and dual-sport riders who often run at varying tire pressures will get the most value from the compressor function.
Who should skip the GOOLOO A3
If portability is your top priority, the size and weight make this less appealing than smaller dedicated jump starters. Riders who already carry a quality tire inflator won’t benefit from the dual function. The slower recharge time is also a drawback for frequent riders.
6. GOOLOO GP4000 – Maximum Capacity for Heavy Use
GOOLOO GP4000 Jump Starter – 4000A 12V Car Battery Jumper Starter Portable
4000A peak output
24000mAh capacity
3.9 lb weight
Pros
- Massive 24000mAh capacity
- 60+ jump starts per charge
- 4000A peak output
- 10 safety protections
- Dual USB ports with fast charging
Cons
- Wall charger not included
- Requires recharging every 2-3 months idle
- Bulkier than compact models
If capacity is what you care about, the GP4000 delivers in a big way. The 24000mAh internal battery is one of the largest in our roundup, and GOOLOO rates it for 60+ jump starts on a single charge. For most riders, that means you could go the entire riding season without plugging it in.
The 4000A peak output is overkill for most motorcycles, but it’s reassuring to know that this unit will start anything from a 250cc scooter to a heavy-duty diesel truck. I tested it on a friend’s 7.3L Power Stroke F-250 with a dead battery, and the GP4000 fired it up on the first attempt. Going back to a small 650cc motorcycle feels easy after that.
The dual USB ports are useful for charging phones and accessories, and one of them supports fast charging. The included EVA storage case is a nice touch that keeps all the cables organized. The 18-month warranty plus lifetime tech support gives extra peace of mind for a more expensive purchase.
The operating temperature range of -4°F to 140°F covers most riding conditions. In cold weather, I noticed the unit held its charge better than some competitors, which matters if you’re storing the GP4000 in an unheated garage over winter.
Who should buy the GP4000
This is the right unit if you want one jump starter for your entire garage of vehicles. Riders with multiple motorcycles, a car, and a truck will appreciate the versatility. People who live in remote areas or take long off-road trips where recharging options are limited will value the massive capacity.
Who should skip the GP4000
If you only need to jump your motorcycle and prioritize compact storage, the GP4000 is overkill. The size and weight make it less practical for small tail bags. Riders on tight budgets can get similar motorcycle performance from much cheaper units.
7. Antigravity AG-XP-20 – Ultra-Compact Professional Grade
Antigravity Batteries 2000A Jump Starter – 12V Lithium Battery Booster Pack, Portable Jump Box, for up to 10.0L Gas & 8.0L Diesel Engines
2000A peak output
2x4x2 inch size
USB-C PD charging
Pros
- Incredibly compact 2x4x2 inch form factor
- 2000A peak output in tiny package
- USB-C Power Delivery fast charging
- UL certified safety
- 2-year warranty
Cons
- Premium price point
- Not recommended to freeze
- Smaller battery capacity
The Antigravity AG-XP-20 is the smallest jump starter in our roundup by a significant margin. At roughly 2 inches by 4 inches, it’s small enough to fit in a jacket pocket or a small tool roll. Despite the tiny size, it still delivers 2000A of peak output, which is genuinely impressive engineering.
Antigravity is a well-known name in the exotic and performance car world, and this jump starter is built to the same professional standards. The Micro-Start XP-20 is trusted by professional mechanics and exotic car dealerships because it packs serious power into a portable form factor. The USB-C Power Delivery charging is fast and convenient.
The 20000mAh capacity is solid, and the unit works on vehicles up to 10.0L gas and 8.0L diesel engines. For motorcycle use, this means more than enough power for any bike you can throw at it. The included carrying case and smart jumper cables feel premium.
Who should buy the AG-XP-20
If compact size is your absolute top priority and you want professional-grade quality, the AG-XP-20 is the pick. Sportbike riders with limited storage space will appreciate how small this unit is. It’s also a great choice for riders who want a premium brand with a longer 2-year warranty.
Who should skip the AG-XP-20
Budget-conscious riders will find better value in NOCO or GOOLOO models with similar performance at lower prices. If you don’t need the ultra-compact form factor, other options deliver more capacity for the same money. Riders in extremely cold climates should note that Antigravity doesn’t recommend letting this unit freeze.
8. Schumacher SL1639 – Affordable and Reliable Budget Option
Schumacher Electric 1000 Peak Amp 12V Portable Lithium Car Battery Jump Starter & Power Pack – Lithium Ion Jump Box – with USB Charging & LED Emergency Light – SL1639
1000A peak output
Ultra-compact design
Budget-friendly
Pros
- Most affordable unit in our roundup
- Ultra-compact size fits glove box
- Holds charge for months in storage
- USB power bank functionality
- Multiple flashlight modes including SOS
Cons
- May only provide one jump start before recharging
- Not for larger commercial vehicles
- Lower capacity than premium models
The Schumacher SL1639 proves you don’t need to spend a fortune to get a reliable motorcycle jump starter. At a budget-friendly price point, this unit delivers the core functionality most riders need without the premium features that drive up costs on other models.
The compact size is genuinely impressive. At roughly 1.5 inches thick and 3.3 inches wide, this unit slides into a glove box, jacket pocket, or small saddlebag without any fuss. Schumacher has been making automotive electrical equipment for decades, and that experience shows in the build quality.
Jump-starting performance is rated at 1000A peak, which is more than enough for any motorcycle. I tested it on a dead Honda CBR600RR and it started on the first try. The 8.0L gas / 6.0L diesel engine rating gives you some headroom for jumping cars and trucks too. The LED flashlight with SOS and strobe modes is a nice emergency feature.
The main trade-off is capacity. With only 1000Ah of internal storage, you’ll likely get just one or two jump starts before needing a recharge. For occasional use or as a backup, this is fine, but heavy users will want something with more capacity. The dual USB ports (2.4A and 3A) charge phones and tablets at decent speeds.
Who should buy the SL1639
This is the right pick for riders on a tight budget who want basic jump-starting capability. Occasional riders, second bikes, and emergency backup use cases are well-served by the SL1639. Anyone who values compact size over maximum capacity will appreciate how small this unit is.
Who should skip the SL1639
If you need multiple jump starts between charges, the lower capacity will be frustrating. Frequent riders or those who venture far from power outlets should look at higher-capacity models. Commercial users who need to jump large vehicles regularly will want something more powerful.
What to Look for When Buying a Motorcycle Jump Starter?
Choosing the best portable jump starter for motorcycles comes down to matching the unit’s specs to your bike and riding style. Here’s what matters most based on our testing and rider feedback.
Peak Current and Engine Compatibility
Most motorcycles need between 200-400 cold cranking amps to start, but a dead battery requires the jump starter to push well above that number momentarily. Look for units rated at 1000A peak or higher for reliable motorcycle starting. The units we tested range from 1000A to 4000A peak output. For pure motorcycle use, 1000-1500A is plenty. If you also want to jump larger vehicles, step up to 2000A or more.
Safety Features Matter
Spark-proof technology and reverse polarity protection are essential safety features. Spark-proof clamps prevent accidental sparks when connecting to a battery, which is a real fire risk around fuel vapors. Reverse polarity protection means if you accidentally swap positive and negative clamps, the unit won’t damage your bike’s electrical system. Every unit in our roundup has both features, which is now table stakes for quality jump starters.
Portability and Size
Motorcycle storage space is always limited, so size and weight matter more than for car jump starters. The most portable units weigh 2-3 pounds and fit in a tail bag or under a seat. Anything over 4 pounds starts to feel bulky on a bike. The Antigravity AG-XP-20 stands out here at roughly 2x4x2 inches, but the NOCO GB40 and Schumacher SL1639 are also impressively compact.
Battery Capacity and Charge Retention
Capacity measured in mAh tells you how many jump starts you can do per charge. A 2000-3000mAh unit delivers about 15-20 starts, while larger 10000-24000mAh units deliver 40-60+ starts. Equally important is charge retention, which is how long the unit holds its charge in storage. Quality lithium jump starters hold 80%+ charge for 6-12 months when not used. This matters because you don’t want a dead jump starter when you actually need it.
Motorcycle-Specific Considerations
Motorcycle batteries are often tucked into hard-to-reach spots, making short jumper cable leads a real advantage. Look for units with cable lengths of at least 12-18 inches. Quick-connect adapters are also worth considering. These let you permanently attach a small plug to your battery terminals, so you can connect the jump starter without removing any panels. Some riders on forums specifically recommend this setup for bikes with awkward battery locations.
Cold Weather Performance
Lithium batteries lose capacity in extreme cold, which matters if you ride in winter or store your bike in an unheated garage. Most units in our roundup operate down to -4°F, but performance drops noticeably below freezing. If you regularly ride in cold weather, consider a unit with enhanced thermal efficiency like the NOCO GBX series, or store the jump starter indoors when not in use.
Frequently Asked Questions
What is the best jump start kit for a motorcycle?
Based on our testing, the NOCO Boost GB40 is the best overall jump starter for motorcycles. It delivers 1000A of peak output, weighs only 2.5 pounds, and includes spark-proof technology and reverse polarity protection. For larger bikes or riders who want extra capacity, the NOCO Boost GB70 offers 2000A and 40 starts per charge.
Can you use a portable jump starter on a motorcycle?
Yes, portable jump starters are safe and effective for motorcycles. Modern lithium units are designed for 12V vehicles including motorcycles, ATVs, and cars. They include safety features like spark-proof clamps and reverse polarity protection to prevent damage to sensitive motorcycle electronics. Make sure to connect positive to positive and negative to a clean ground point on the frame.
How many amps are needed to jump start a motorcycle?
Most motorcycles need 200-400 cold cranking amps to start a healthy battery. For a completely dead battery, a portable jump starter rated at 1000A peak or higher provides reliable starting power. Smaller bikes can sometimes start with 600-800A units, but 1000A+ gives you headroom for cold weather, larger displacement engines, and partially degraded batteries.
How long does a portable jump starter last?
A quality lithium jump starter lasts 3-5 years with proper care. The internal lithium battery typically handles 500-1000 charge cycles before noticeable capacity loss. To maximize lifespan, recharge the unit every 2-3 months during storage and avoid leaving it in extreme temperatures. Most units hold 80%+ charge for 6-12 months when sitting unused.
Is a lithium jump starter worth it for a motorcycle?
Yes, lithium jump starters are absolutely worth it for motorcycle riders. They are significantly lighter than traditional lead-acid jump packs, typically 2-5 pounds versus 15-20 pounds. Lithium units also hold their charge much longer in storage and deliver more usable cranking amps per pound. The convenience and portability make them ideal for motorcycle emergency kits.
Final Verdict
After testing 8 units across multiple motorcycles and comparing thousands of rider reviews, the NOCO Boost GB40 stands out as the best portable jump starter for motorcycles for most riders. It combines proven reliability, compact size, and foolproof safety features at a reasonable price point. The 128k+ reviews and 4.6-star rating speak to its consistent performance across thousands of real-world users.
For riders who want more capacity or need to jump larger vehicles, the NOCO Boost GB70 delivers serious power in a still-portable package. Budget-conscious riders will find excellent value in the Schumacher SL1639, while tech-focused riders should look at the NOCO Boost X GBX45 for modern USB-C charging. Whatever unit you choose, carrying a portable jump starter on your motorcycle is one of the smartest investments you can make for riding peace of mind.