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|---|---|---|---|
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NOCO Boost Plus GB40 Best for Cars and Small Engines 1000A peak, up to 6L gas / 3L diesel |
9.3 | 🛒 Check Price |
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NOCO Boost HD GB70 Best for Big and Diesel Engines 2000A peak, up to 8L gas / 6L diesel |
9.5 | 🛒 Check Price |
1. NOCO Boost Plus GB40: Best for Cars and Small Engines
The GB40 is built for everyday drivers who need a dependable jump for a dead battery without hauling a bulky pack. Its 1000A peak output covers most four and six cylinder cars, motorcycles, ATVs, and small SUVs with room to spare.
It stays compact enough to tuck into a glovebox, and the spark-proof clamps make it approachable for first timers. If your garage holds a commuter car or a small engine, this is the smarter, lighter pick.
- 1000A peak output that handles most cars, motorcycles, and small SUVs
- Compact and lightweight enough to live in a glovebox or door pocket
- Spark-proof clamps with reverse polarity protection for safe hookups
- Doubles as a USB power bank and built-in LED flashlight
Pros: Small footprint that fits almost any storage spot; Strong value for daily drivers and small engines; Beginner friendly with clear safety indicators
Cons: Struggles with large diesel and big-block gas engines; Lower amp ceiling limits cold weather headroom
2. NOCO Boost HD GB70: Best for Big and Diesel Engines
The GB70 doubles the peak output to 2000A, so it muscles through large gas trucks, vans, and diesel engines that leave smaller packs gasping. The heavier clamps and thicker cables move serious current, and the larger battery delivers more jumps between charges.
It is bigger and heavier than the GB40, which is the trade for that extra headroom. For pickups, work vehicles, RVs, and cold-start diesels, the GB70 is the unit you want in the bed or toolbox.
- 2000A peak output for large gas trucks and heavy diesel engines
- Heavy duty clamps and thicker cables for high current delivery
- Bigger internal battery gives more jumps per charge
- Same spark-proof and reverse polarity protection as the GB40
Pros: Massive cranking power for big-block and diesel engines; More jumps per charge thanks to the larger cell; Rugged build suited to trucks, vans, and equipment
Cons: Heavier and bulkier than the GB40; Overkill for small commuter cars
Frequently Asked Questions
What is the main difference between the GB40 and GB70?
The GB40 delivers 1000A peak and suits cars and small engines, while the GB70 delivers 2000A peak for large gas and diesel engines. The GB70 is also bigger, heavier, and stores more jumps per charge.
Can the GB40 start a diesel engine?
The GB40 can handle diesel engines up to around 3 liters. For larger trucks, vans, or heavy diesels, the GB70 with its 2000A output is the safer and more reliable choice.
Is the GB70 worth it over the GB40 for a regular car?
For a typical commuter car, the GB70 is more power than you need and adds size and weight. The GB40 is lighter, easier to store, and a better fit unless you also service larger or diesel engines.
Our Verdict
Choose by engine size. If you drive a car, motorcycle, or small SUV, the GB40 gives you all the cranking power you need in a pocket sized package. If you run big-block gas trucks, vans, or diesel engines, step up to the GB70 for its 2000A headroom and extra jumps per charge. Either way, both deliver the same trusted safety features, so match the amps to your engine and you will not be stranded. For more options across every engine type, see our guide to the best jump starters.
